CN106956472B - A kind of composite material shock resistance structure and its forming method - Google Patents
A kind of composite material shock resistance structure and its forming method Download PDFInfo
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- CN106956472B CN106956472B CN201710124103.2A CN201710124103A CN106956472B CN 106956472 B CN106956472 B CN 106956472B CN 201710124103 A CN201710124103 A CN 201710124103A CN 106956472 B CN106956472 B CN 106956472B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B1/00—Layered products having a general shape other than plane
- B32B1/08—Tubular products
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/02—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by a sequence of laminating steps, e.g. by adding new layers at consecutive laminating stations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B38/00—Ancillary operations in connection with laminating processes
- B32B38/08—Impregnating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
- B32B5/024—Woven fabric
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/22—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
- B32B5/24—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
- B32B5/26—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it also being fibrous or filamentary
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2260/00—Layered product comprising an impregnated, embedded, or bonded layer wherein the layer comprises an impregnation, embedding, or binder material
- B32B2260/02—Composition of the impregnated, bonded or embedded layer
- B32B2260/021—Fibrous or filamentary layer
Abstract
The present invention relates to a kind of composite material shock resistance structure and its forming methods, solve the problems, such as the low cost manufacturing of annular shock resistance structure, belong to structural composite material manufacturing technology field.Composite material shock resistance structure of the invention has alternating layer, since its alternating layer is the grid pilotaxitic texture formed by adjacent laying prepreg tape interleaved laying, 2 dimension laminate structures of conventional composite materials laminate are changed into 2.5 dimension laminate structures by the structure, therefore so that the interlayer performance of the shock resistance structure and impact injury tolerance is improved 15% or more, there is better shock resistance；The annulate lamella of the composite material shock resistance structure has splendid fiber continuity and cut-off simultaneously, composite materials property can utmostly be played, by the close hoop of alternating layer between two annulate lamellas, thus further promote the damage tolerance and interlayer performance of alternating layer；Therefore, composite material shock resistance structure provided by the invention has the advantages that good shock resistance damage and failure.
Description
Technical field
It is multiple to belong to structure for the invention proposes a kind of composite structure and its forming method with anti-impact damage performance
Condensation material manufacturing technology field.
Background technique
Engine is the core component of aviation aircraft, is damaged to prevent or reduce in flight course to the impact of engine
Wound, aero-engine are contained casing and are made of the stronger three dimensional fabric of impact resistance, and the three dimensional fabric passes through RTM (Resin
Tranfer Molding, resin transfer moulding) molding, it is at the time of molding, logical first according to the design size of engine containing casing
Then the mode for crossing 3 D weaving is injected resin to molding fabric, is obtained finished product using dry yarn knitting forming.
Above method weaving is complicated, manufacture difficulty is big, at high cost.Therefore, a kind of composite material shock resistance knot is needed
Structure, to reduce the manufacturing cost for starting casing.
Summary of the invention
The technical problem to be solved by the present invention is overcoming the shortage of prior art, a kind of composite material shock resistance structure is proposed
And its forming method, interweave with forming alternating layer by carrying out grid between adjacent laying, and twine by the fixed alternating layer of annulate lamella
Around form, obtain resisting the high composite structure of performance, this method simple process greatly reduces impact resistance composite wood
The manufacturing cost of material.
The purpose of the present invention is what is be achieved through the following technical solutions:
A kind of composite material shock resistance structure, including an alternating layer and two annulate lamellas, the alternating layer are located at two institutes
State between annulate lamella, the alternating layer include the first laying and the second laying, first laying by a plurality of first prepreg tape with
First laying angle laying is formed, and second laying is formed by a plurality of second prepreg tape with the second laying angle laying, and institute
State the first prepreg tape and second prepreg tape interweave in laying carry out laying so that first laying and it is described second paving
Layer is overlapping, and circumferentially wound or laying of the annulate lamella by least one annulate lamella prepreg tape along the impact structure is formed, institute
It is different with the second laying angle to state the first laying angle.
In an alternative embodiment, the alternating layer further includes third laying, and the third laying is presoaked by a plurality of third
Band is formed with third laying angle laying, and first prepreg tape, second prepreg tape and the third prepreg tape are in laying
When interweave and carry out laying so that first laying, second laying and the third laying are overlapping, the third wing flapping
Degree, the first laying angle, the second laying angle are different.
A kind of forming method of composite material shock resistance structure, comprising the following steps:
Step 1: first in die surface winding or one layer of annulate lamella of laying；
Step 2: the laying alternating layer on the annulate lamella of formation；
Step 3: and then wound again on the alternating layer of formation or one layer of annulate lamella of laying；
Wherein, the winding of annulate lamella described in step 1 and step 3 or laying method include:
Along mold is circumferentially wound or laying annulate lamella prepreg tape, until being paved with the die surface, annulate lamella is formed；
In step 2, the laying method of the alternating layer includes:
In the annular layer surface of formation, according to first laying angle the first prepreg tape of laying, to form the first laying；
According to second laying angle the second prepreg tape of laying, to form the second laying, wherein first prepreg tape and institute
It states the second prepreg tape and interweaves in laying and carry out laying, the first laying angle and the second laying angle are different, described
First laying and second laying, which overlap, forms the alternating layer.
In an alternative embodiment, the laying method of the alternating layer includes:
In the annular layer surface of formation, according to first laying angle the first prepreg tape of laying, to form the first laying；
According to second laying angle the second prepreg tape of laying, to form the second laying；
According to third laying angle laying third prepreg tape, to form third laying, wherein first prepreg tape, described
Second prepreg tape and the third prepreg tape interweave in laying carries out laying, the first laying angle, second laying
Angle and the third laying angle are different, and first laying, second laying and the third laying overlap shape
At the alternating layer.
In an alternative embodiment, first prepreg tape and second prepreg tape interweave in laying carries out laying,
The following steps are included:
(1) at interval of one the first prepreg tape of the first width laying, until being paved with the die surface, first width
Not less than the bandwidth of first prepreg tape；
(2) at interval of one the second prepreg tape of the second width laying, until being paved with the die surface, second width
Not less than the bandwidth of second prepreg tape；
(3) in each interval, close to a first good prepreg tape of laying, one the first prepreg tape of laying, until
It is paved with the die surface；
(4) in each interval, close to a second good prepreg tape of laying, one the second prepreg tape of laying, until
It is paved with the die surface；
(5) step (3) and (4) are repeated, until the spacing between good the first prepreg tape of adjacent two of laying is respectively less than
The bandwidth of first prepreg tape, the spacing between two adjacent the second prepreg tapes are respectively less than the band of second prepreg tape
Width stops laying.
In an alternative embodiment, first prepreg tape and second prepreg tape interweave in laying carries out laying,
The following steps are included:
1) one the first prepreg tape of laying；
2) one the second prepreg tape of laying；
3) spaced another the first prepreg tape of first width laying is presoaked with the first of last laying；
4) spaced another the second prepreg tape of second width laying is presoaked with the second of last laying；
5) it is repeated in step 3) and 4), until being paved with the die surface；
6) in an interval of the first good prepreg tape of laying, close to the first good prepreg tape of laying is spread described in one
Put first prepreg tape；
7) in an interval of the second good prepreg tape of laying, close to the second good prepreg tape of laying is spread described in one
Put second prepreg tape；
8) then, in another interval of the first good prepreg tape of the laying, close to laying is good described in one
First the first prepreg tape of another of prepreg tape laying；
9) in another interval of the second good prepreg tape of the laying, close to good second pre- of laying described in one
Soak band, another the second prepreg tape of laying；
10) step 8) and 9) is repeated, until being paved with the die surface；
Repeat step 6) -9) until the spacing between good adjacent two of laying first prepreg tape is less than described the
The bandwidth of one prepreg tape, the distance between described second prepreg tape of adjacent two are less than the bandwidth of second prepreg tape, stop
Only laying.
In an alternative embodiment, in the same direction of the alternating layer between two adjacent prepreg tapes between be divided into
0.5mm-1mm, the annulate lamella prepreg tape is in winding or laying, without overlap joint gapless between two adjacent rings.
In an alternative embodiment, with first direction along the mold is circumferentially wound or the preimpregnation of laying annulate lamella in step 1
Band, with second direction along the mold is circumferentially wound or another annulate lamella prepreg tape of laying in step 3, the first direction and
The second direction is opposite.
In an alternative embodiment, the prepreg that the prepreg tape uses is carbon fiber prepreg, Aramid Prepreg, glass
One of fiber prepreg material or more than one combinations.
In an alternative embodiment, the alternating layer passes through institute by automatic placement technology laying forming, the annulate lamella
It states automatic placement technology or is formed with winding technology.
The advantages of the present invention over the prior art are that:
1) composite material shock resistance structure provided by the invention has alternating layer, since its alternating layer is by adjacent laying
The grid pilotaxitic texture that prepreg tape interleaved laying is formed, the structure tie up laminate structures for the 2 of conventional composite materials laminate
2.5 dimension laminate structures are changed into, therefore make the shock resistance structure compared with traditional laminate, interlayer performance and impact injury hold
Limit improves 15% or more, has better shock resistance；The annulate lamella of the composite material shock resistance structure has simultaneously
Splendid fiber continuity and cut-off, can utmostly play composite materials property, and the close hoop of alternating layer is existed
Between two annulate lamellas, thus further promote the damage tolerance and interlayer performance of alternating layer；Therefore, provided by the invention compound
Material shock resistance structure has the advantages that good shock resistance damage and failure.
2) composite material shock resistance structure forming method provided by the invention twines molding by successively spreading prepreg tape,
Laying stretches, compression performance is promoted nearly twice compared with conventional three-dimensional braiding structure, beneficial to lifting member overall stiffness, and prepreg
Successively automation laying forming, laying prepreg fiber content deviation are can be controlled within 2%, and prepreg laying angular error can
Within 0.3 ° of control, Forming Quality is easily controllable, and manufacture efficiency is high, and manufacturing cost is greatly lowered.
3) thickness is almost the same after each layer laying prepreg tape solidification of the annular composite material shock resistance damage ply angles,
Fiber volume percentage composition can reach 63% or more, and deviation is can be controlled within ± 2%.
4) present invention can need to be designed according to load, the laying angle and overlay thickness of alternating layer and annular thickness
Degree can all design adjustment, and alternating layer mesh width can also require design adjustment, annular shock resistance structure tool according to shock loading
There is good designability.
5) present invention can not only use casing containment structure, can also be applied to fuselage, launching tube, storage tank etc..
Detailed description of the invention
Fig. 1 is a kind of composite material shock resistance structure sectional view provided in an embodiment of the present invention；
Fig. 2 is step 3 laying effect diagram in the specific embodiment of the invention 1；
Fig. 3 is step 4 laying effect diagram in the specific embodiment of the invention 1；
Fig. 4 is step 5 laying effect diagram in the specific embodiment of the invention 1；
Fig. 5 is step 6 laying effect diagram in the specific embodiment of the invention 1；
Fig. 6 is step 3 in the specific embodiment of the invention 2 and 4 laying effect diagram；
Fig. 7 is step 5 in the specific embodiment of the invention 2 and 6 laying effect diagram；
Fig. 8 is alternating layer outside schematic diagram in the specific embodiment of the invention 2.
Specific embodiment
The present invention will be further described with reference to the accompanying drawings and examples.
The embodiment of the present invention provides a kind of composite material shock resistance structure, including an alternating layer 1 and two annulate lamellas 2, hands over
Lamination 1 is located between two annulate lamellas 2, and alternating layer 1 includes the first laying and the second laying, and first laying is by a plurality of first
Prepreg tape is formed with the first laying angle laying, and second laying is by a plurality of second prepreg tape with the second laying angle laying shape
At, and first prepreg tape and second prepreg tape interweave in laying carry out laying so that first laying and institute
It is overlapping to state the second laying, annulate lamella 2 is by least one annulate lamella prepreg tape along the circumferentially wound or laying shape of the impact structure
At the first laying angle is different with the second laying angle.
Specifically, in embodiments of the present invention, the first prepreg tape, the second prepreg tape, annulate lamella prepreg tape can for shape,
The identical prepreg tape of the attributes such as material is also possible to the different prepreg tape of the attributes such as shape, material, and the present invention is without limitation；
Prepreg tape can be using one of a variety of prepregs such as carbon fiber prepreg, Aramid Prepreg, glass fibre prepreg or one
Kind or more prepreg mixture, the present invention is without limitation.
In embodiments of the present invention, first prepreg tape and second prepreg tape interweave in laying carries out laying,
It may include first a plurality of first prepreg tape of laying spaced apart, then a plurality of second prepreg tape of laying spaced apart, so
Afterwards again in a plurality of first prepreg tape of interval laying of a plurality of first prepreg tape of laying, later in a plurality of second preimpregnation of laying
A plurality of second prepreg tape of the interval laying of band, and so on, until completing laying；It can also include first laying one article the
One prepreg tape, then one the second prepreg tape of laying, it is then another with the first prepreg tape laying spaced apart of last laying
One the first prepreg tape, later with another the second prepreg tape of the second prepreg tape laying spaced apart of last laying,
And so on, until completing laying；In other embodiments, the first prepreg tape and the second prepreg tape can also be used in laying
The intertexture laying mode of other forms, the present invention is without limitation.
In other embodiments, the quantity of annulate lamella and alternating layer can be needed to increase the present invention according to load and not limited
It is fixed.
Composite material shock resistance structure provided by the invention has alternating layer, since its alternating layer is pre- by adjacent laying
The grid pilotaxitic texture that spaced intertexture laying is formed is soaked, which changes 2 dimension laminate structures of conventional composite materials laminate
Become 2.5 dimension laminate structures, therefore makes the shock resistance structure compared with traditional laminate, interlayer performance and impact injury tolerance
15% or more is improved, there is better shock resistance；The annulate lamella of the composite material shock resistance structure has pole simultaneously
Good fiber continuity and cut-off, can utmostly play composite materials property, by the close hoop of alternating layer two
Between a annulate lamella, thus further promote the damage tolerance and interlayer performance of alternating layer；Therefore, composite wood provided by the invention
Material shock resistance structure has the advantages that good shock resistance damage and failure.
Specifically, in an alternative embodiment of the invention, alternating layer 1 further includes third laying, the third laying by
A plurality of third prepreg tape is formed with third laying angle laying, first prepreg tape, second prepreg tape and the third
Prepreg tape interweaves in laying carries out laying, so that first laying, second laying and the third laying are overlapping, institute
It is different to state third laying angle, the first laying angle, the second laying angle；
In embodiments of the present invention, first prepreg tape, second prepreg tape and the third prepreg tape are in laying
When interweave and carry out laying, may include first a plurality of first prepreg tape of laying spaced apart, then laying spaced apart is more
The second prepreg tape of item, a plurality of third prepreg tape of laying spaced apart later, then again in a plurality of first prepreg tape of laying
A plurality of first prepreg tape of interval laying, the interval laying of a plurality of second prepreg tape of laying it is a plurality of it is described second preimpregnation
Band, in a plurality of third prepreg tape of the interval laying of a plurality of third prepreg tape of laying, and so on, until completing paving
Layer；It can also include one the first prepreg tape of first laying, then one the second prepreg tape of laying, later one third preimpregnation of laying
Band, then with another the first prepreg tape of the first prepreg tape laying spaced apart of last laying, with last laying
Another the second prepreg tape of the second prepreg tape laying spaced apart, it is spaced certain with the preimpregnation of the third of last laying
Apart from another third prepreg tape of laying, and so on, until completing laying；In other embodiments, the first prepreg tape, second
Prepreg tape and third prepreg tape can also use the alternating laying mode of other forms in laying, and the present invention is without limitation；
In other embodiments, alternating layer can also include more layings such as the 4th laying even the 5th laying, each
The laying angle of laying is all different, and the specific laying quantity that alternating layer is included can need to be designed according to load, is handed over
The laying angle and overlay thickness and annulate lamella thickness of lamination can all design adjustment, and interval of the alternating layer in total
Width can also require design adjustment according to shock loading, and the present invention is without limitation.
The embodiment of the invention also provides a kind of forming methods of composite material shock resistance structure, comprising the following steps:
Step 1: first in die surface winding or one layer of annulate lamella of laying；
Step 2: the laying alternating layer on the annulate lamella of formation；
Step 3: and then wound again on the alternating layer of formation or one layer of annulate lamella of laying；
Wherein, the winding of annulate lamella described in step 1 and step 3 or laying method include:
Along the mold is circumferentially wound or laying annulate lamella prepreg tape, until being paved with the die surface, annulate lamella is formed；
In step 2, the laying method of the alternating layer includes:
In the annular layer surface of formation, according to first laying angle the first prepreg tape of laying, to form the first laying；
According to second laying angle the second prepreg tape of laying, to form the second laying, wherein first prepreg tape and institute
It states the second prepreg tape and interweaves in laying and carry out laying, the first laying angle and the second laying angle are different, described
First laying and second laying, which overlap, forms the alternating layer.
Specifically, in embodiments of the present invention, the first prepreg tape, the second prepreg tape, annulate lamella prepreg tape can for shape,
The identical prepreg tape of the attributes such as material is also possible to the different prepreg tape of the attributes such as shape, material, and the present invention is without limitation；
Prepreg tape can be using one of a variety of prepregs such as carbon fiber prepreg, Aramid Prepreg, glass fibre prepreg or one
Kind or more prepreg mixture, the present invention is without limitation.
In embodiments of the present invention, first prepreg tape and second prepreg tape interweave in laying carries out laying,
It may include first a plurality of first prepreg tape of laying spaced apart, then a plurality of second prepreg tape of laying spaced apart, so
Afterwards again in a plurality of first prepreg tape of interval laying of a plurality of first prepreg tape of laying, later in a plurality of second preimpregnation of laying
A plurality of second prepreg tape of the interval laying of band, and so on, until completing laying；It can also include first laying one article the
One prepreg tape, then one the second prepreg tape of laying, it is then another with the first prepreg tape laying spaced apart of last laying
One the first prepreg tape, later with another the second prepreg tape of the second prepreg tape laying spaced apart of last laying,
And so on, until completing laying；In other embodiments, the first prepreg tape and the second prepreg tape can also be used in laying
The alternating laying mode of other forms, the present invention is without limitation.
Composite material shock resistance structure forming method provided by the invention twines molding by successively spreading prepreg tape, paving
Layer stretch, compression performance compared with conventional three-dimensional braiding structure promoted it is nearly twice, it is beneficial to lifting member overall stiffness, and prepreg by
Layer automation laying forming, laying prepreg fiber content deviation are can be controlled within 2%, and prepreg laying angular error is controllable
Within 0.3 ° of system, Forming Quality is easily controllable, and manufacture efficiency is high, and manufacturing cost is greatly lowered；It is provided in an embodiment of the present invention
The composite material shock resistance structure of forming method preparation, has alternating layer, since its alternating layer is to presoak interband by adjacent laying
Every the grid pilotaxitic texture that intertexture laying is formed, which changes into 2.5 for 2 dimension laminate structures of conventional composite materials laminate
Laminate structures are tieed up, therefore make the shock resistance structure compared with traditional laminate, interlayer performance and impact injury tolerance improve
15% or more, there is better shock resistance；The annulate lamella of the composite material shock resistance structure has splendid fiber simultaneously
Continuity and cut-off can utmostly play composite materials property, by the close hoop of alternating layer in two annulars
Between layer, thus further promote the damage tolerance and interlayer performance of alternating layer；Therefore, composite material anti-impact provided by the invention
Hitting structure has the advantages that good shock resistance damage and failure.
Specifically, it applies in example of the invention real one is optional, the laying method of the alternating layer includes:
In the annular layer surface of formation, according to first laying angle the first prepreg tape of laying, to form the first laying；
According to second laying angle the second prepreg tape of laying, to form the second laying；
According to third laying angle laying third prepreg tape, to form third laying, wherein first prepreg tape, described
Second prepreg tape and the third prepreg tape interweave in laying carries out laying, the first laying angle, second laying
Angle and the third laying angle are different, and first laying, second laying and the third laying overlap shape
At the alternating layer.
In embodiments of the present invention, first prepreg tape, second prepreg tape and the third prepreg tape are in laying
When interweave and carry out laying, may include first a plurality of first prepreg tape of laying spaced apart, then laying spaced apart is more
The second prepreg tape of item, a plurality of third prepreg tape of laying spaced apart later, then again in a plurality of first prepreg tape of laying
A plurality of first prepreg tape of interval laying, the interval laying of a plurality of second prepreg tape of laying it is a plurality of it is described second preimpregnation
Band, in a plurality of third prepreg tape of the interval laying of a plurality of third prepreg tape of laying, and so on, until completing paving
Layer；It can also include one the first prepreg tape of first laying, then one the second prepreg tape of laying, later one third preimpregnation of laying
Band, then with another the first prepreg tape of the first prepreg tape laying spaced apart of last laying, with last laying
Another the second prepreg tape of the second prepreg tape laying spaced apart, it is spaced certain with the preimpregnation of the third of last laying
Apart from another third prepreg tape of laying, and so on, until completing laying；In other embodiments, the first prepreg tape, second
Prepreg tape and third prepreg tape can also use the alternating laying mode of other forms in laying, and the present invention is without limitation；
In other embodiments, alternating layer can also include interweaving the 4th laying even the 5th laying being laid with etc. more
The laying angle of laying, each laying is all different, the specific laying quantity that alternating layer is included can be needed according to load into
Row design, the laying angle and overlay thickness and annulate lamella thickness of alternating layer can all design adjustment, and alternating layer interval width
Design adjustment can also be required according to shock loading, the present invention is without limitation.
In an alternative embodiment, first prepreg tape and second prepreg tape interweave in laying carries out laying,
The following steps are included:
(1) at interval of one the first prepreg tape of the first width laying, until being paved with the die surface, first width
Not less than the bandwidth of first prepreg tape；
Specifically, the first width is generally slightly larger than the bandwidth integral multiple of the first prepreg tape in embodiments of the present invention；
(2) at interval of one the second prepreg tape of the second width laying, until being paved with the die surface, second width
Not less than the bandwidth of second prepreg tape；
Specifically, the second bandwidth is generally slightly larger than the bandwidth integral multiple of the second prepreg tape in the present invention is implemented；
(3) in each interval, close to a first good prepreg tape of laying, one the first prepreg tape of laying, until
It is paved with the die surface；
(4) in each interval, close to a second good prepreg tape of laying, one the second prepreg tape of laying, until
It is paved with the die surface；
(5) step (3) and (4) are repeated, until the spacing between good the first prepreg tape of adjacent two of laying is respectively less than
The bandwidth of first prepreg tape, the spacing between two adjacent the second prepreg tapes are respectively less than the band of second prepreg tape
Width stops laying.
It is slightly larger than a bandwidth of the first prepreg tape with the first width, the second width is slightly larger than a band of the second prepreg tape
For width, the intertexture laying method of the first prepreg tape and the second prepreg tape includes:
(1) at interval of one the first prepreg tape of the first width laying, until being paved with the die surface；
(2) at interval of one the second prepreg tape of the second width laying, until being paved with the die surface；
(3) one the first prepreg tape of each interval laying formed in step (1), until being paved with the die surface；
(4) one the second prepreg tape of each interval laying formed in step (2), until it is paved with the die surface,
Stop laying.
It is slightly larger than two bandwidth of the first prepreg tape with the first width, the second width is slightly larger than two bands of the second prepreg tape
For width, the intertexture laying method of the first prepreg tape and the second prepreg tape includes:
(1) at interval of one the first prepreg tape of the first width laying, until being paved with the die surface；
(2) at interval of one the second prepreg tape of the second width laying, until being paved with the die surface；
(3) each interval formed in step (1), close to a first good prepreg tape of laying, laying one article the
One prepreg tape, until being paved with the die surface；
(4) each interval formed in step (2), close to a second good prepreg tape of laying, laying one article the
Two prepreg tapes, until being paved with the die surface；
(5) it each of is formed in step (3) in interval, close to a first good prepreg tape of laying, laying one
First prepreg tape, until being paved with the die surface；
(6) it each of is formed in step (4) in interval, close to a second good prepreg tape of laying, laying one
Second prepreg tape stops laying until being paved with the die surface.
In an alternative embodiment, first prepreg tape, second prepreg tape and the third prepreg tape are in laying
When interweave carry out laying, comprising the following steps:
1) one the first prepreg tape of laying；
2) one the second prepreg tape of laying；
3) spaced another the first prepreg tape of first width laying is presoaked with the first of last laying；
4) spaced another the second prepreg tape of second width laying is presoaked with the second of last laying；
5) it is repeated in step 3) and 4), until being paved with the die surface；
6) in an interval of the first good prepreg tape of laying, close to the first good prepreg tape of laying is spread described in one
Put first prepreg tape；
7) in an interval of the second good prepreg tape of laying, close to the second good prepreg tape of laying is spread described in one
Put second prepreg tape；
8) then, in another interval of the first good prepreg tape of the laying, close to laying is good described in one
First prepreg tape, another the first prepreg tape of laying；
9) in another interval of the second good prepreg tape of the laying, close to good second pre- of laying described in one
Soak band, another the second prepreg tape of laying；
10) step 8) and 9) is repeated, until being paved with the die surface；
Repeat step 6) -9) until the spacing being laid between good adjacent two first prepreg tape of laying is greater than zero
Less than the bandwidth of first prepreg tape, the distance between described second prepreg tape of adjacent two is greater than zero and is less than described second
The bandwidth of prepreg tape stops laying.
The intertexture laying method of first prepreg tape and the second prepreg tape provided in an embodiment of the present invention, will be composite laminated
Plate changes into 2.5 dimensions by 2 traditional dimensions, so that there is the shock resistance structure arrived better interlayer performance and impact injury to hold
Limit, more traditional laminate promote 15% or more.
Specifically, in embodiments of the present invention, between two prepreg tapes adjacent in the same direction of the alternating layer
Between be divided into 0.5mm-1mm, the annulate lamella prepreg tape in winding or laying, between two adjacent rings without overlap joint gapless.?
In the embodiment of the present invention, the alternating layer passes through the automatic placement by automatic placement technology laying forming, the annulate lamella
Technology is formed with winding technology；Automatic placement technology be by several preimpregnation silks or with multiaxis placement head (mechanical hand) according to setting
Meter requires identified laying direction to be laid in mandrel surface, compacting sizing under pressure roller pressurization, and whole process is surveyed by computer
System completion is coordinated in control.It can cut off tow according to the variation of component body surface shape at any time, continue to convey when needing
Tow is suitble to the molding of the complex shaped components such as concave curved surface, convex surface, variable cross-section；Craft can also be passed through in other embodiments
The prepreg overlays mode such as laying forms, and the present invention is without limitation.
Specifically, in embodiments of the present invention, circumferentially wound along the mold with first direction in step 1 or laying is annular
Layer prepreg tape, with second direction along the mold is circumferentially wound or another annulate lamella prepreg tape of laying in step 3, described first
Direction and the second direction are opposite.Annulate lamella has splendid fiber continuity and cut-off, by by the two of hoop alternating layer
A annulate lamella is arranged to wind or be laid with contrary structure, can utmostly play the tightening force of annulate lamella, will hand over
The close hoop of lamination further promotes the damage tolerance and interlayer performance of alternating layer between two annulate lamellas
The following are specific embodiments provided by the invention:
Embodiment 1:
1) ring mould is chosen；
2) annulate lamella prepreg tape is wound along the circumferential 0 ° of direction of ring mould, until being paved with ring mould surface, is formed continuous
The annulate lamella of fiber；The annulate lamella prepreg tape uses carbon fiber prepreg, width 50mm；
3) it is 60 ° according to laying angle, at interval of 1 the first prepreg tape of 12.9mm laying, is so paved with entire cylinder, the
Prepreg used by one prepreg tape is carbon fiber prepreg, is presoaked bandwidth 12.7mm (as shown in Figure 2)；
4) it is -60 ° according to laying angle, at interval of 1 the second prepreg tape of 12.9mm laying, is so paved with entire cylinder,
Prepreg used by second prepreg tape is carbon fiber prepreg, is presoaked bandwidth 12.7mm (as shown in Figure 3)；
It 5) is 60 ° according to laying angle, in the first prepreg tape of interval laying (as shown in Figure 4) of step 3), prepreg tape
Width 12.7mm is so paved with entire cylinder；
6) it is -60 ° according to laying angle, in the second prepreg tape of interval laying of step 4), presoaks bandwidth 12.7mm,
It is so paved with entire cylinder (as shown in Figure 5), obtains the alternating layer of the first prepreg tape and the second preimpregnation tape alternation laying formation；
7) outside the alternating layer that step 6) is formed, annulate lamella prepreg tape is wound along the circumferential 0 ° of direction of ring mould, until paving
Full ring mould surface, forms another layer of annulate lamella, presoaks bandwidth 50mm；
8) step 3) is repeated to step 7), after 4 repetitions, completes annular composite material shock resistance damage ply angles part
Molding；
9) molding component is put into autoclave temperature-pressure to solidify, 180 DEG C of solidification temperature, solidifying pressure 0.6MPa, very
Pneumatics power 0.1MPa；
10) it is demoulded after going out tank, flash removed is removed in polishing, obtains finished product.Embodiment 2
1) ring mould is chosen；
2) it along the circumferential 0 ° of direction laying annulate lamella prepreg tape of ring mould, until being paved with ring mould surface, is formed continuous
The annulate lamella of fiber；The annulate lamella prepreg tape uses aramid fiber prepreg, prepreg width 80mm；
It 3) is 60 ° according to laying angle, 1 the first prepreg tape of laying, prepreg used by the first prepreg tape is glass
Fiber prepreg material presoaks bandwidth 6.35mm；
It 4) is -45 ° according to laying angle, 1 the second prepreg tape of laying, prepreg used by the second prepreg tape is carbon fiber
Tie up prepreg, preimpregnation bandwidth is 12.7mm (referring to Fig. 6)；
5) another the first prepreg tape of width laying for presoaking spaced 6.45mm with the first of last laying；
6) another the second prepreg tape of width laying for presoaking spaced 13.1mm with the second of last laying；(referring to
Fig. 7)
7) it is repeated in step 5) and 6), until being paved with the die surface；
8) in first interval of the first good prepreg tape of laying, close to the first good prepreg tape of laying described in one
One the first prepreg tape of laying presoaks bandwidth 6.35mm；
9) in first interval of the second good prepreg tape of laying, close to the second good prepreg tape of laying described in one
One the second prepreg tape of laying presoaks bandwidth 12.7mm；
10) spaced 6.4mm then, is presoaked with the first of last laying, in the first good prepreg tape of the laying
Another interval, another the first prepreg tape of laying；
11) spaced 12.9mm is presoaked with the second of last laying, in the another of the second good prepreg tape of the laying
A interval, another the second prepreg tape of laying；
12) step 10) is repeated in 11), until being paved with the die surface, is stopped laying, is obtained alternating layer (as schemed
Shown in 8)；
13) outside the alternating layer that step 12) is formed, along the circumferential 0 ° of direction laying annulate lamella prepreg tape of ring mould, until
It is paved with ring mould surface, forms another layer of annulate lamella,
14) step 3) is repeated to step 13), is repeated 10 times, is completed annular composite material shock resistance and damage ply angles part
Molding；
15) molding component is put into autoclave temperature-pressure to solidify, 180 DEG C of solidification temperature, solidifying pressure 0.8MPa, very
Pneumatics power 0.1MPa；
16) it is demoulded after going out tank, flash removed is removed in polishing, obtains finished product.
Composite material shock resistance structure provided in an embodiment of the present invention has alternating layer, since its alternating layer is by adjacent
The grid pilotaxitic texture that laying prepreg tape interleaved laying is formed, the structure are laminated by 2 dimensions of conventional composite materials laminate
Structure changes into 2.5 dimension laminate structures, therefore makes the shock resistance structure compared with traditional laminate, interlayer performance and impact damage
Hurt tolerance and improve 15% or more, there is better shock resistance；The annulate lamella of the composite material shock resistance structure simultaneously
With splendid fiber continuity and cut-off, composite materials property can be utmostly played, by the close ring of alternating layer
Hoop further promotes the damage tolerance and interlayer performance of alternating layer between two annulate lamellas；Therefore, provided by the invention
Composite material shock resistance structure has the advantages that good shock resistance damage and failure.
The above, optimal specific embodiment only of the invention, but scope of protection of the present invention is not limited thereto,
In the technical scope disclosed by the present invention, any changes or substitutions that can be easily thought of by anyone skilled in the art,
It should be covered by the protection scope of the present invention.
The content that description in the present invention is not described in detail belongs to the well-known technique of professional and technical personnel in the field.
Claims (8)
1. a kind of composite material shock resistance structure, which is characterized in that including an alternating layer and two annulate lamellas, the alternating layer position
Between two annulate lamellas, the alternating layer includes the first laying and the second laying, and first laying is by a plurality of first
Prepreg tape is formed with the first laying angle laying, and second laying is by a plurality of second prepreg tape with the second laying angle laying shape
At, and first prepreg tape and second prepreg tape interweave in laying carry out laying so that first laying and institute
It is overlapping to state the second laying, the annulate lamella is by least one annulate lamella prepreg tape along the circumferentially wound or laying of the impact structure
It is formed, the first laying angle is different with the second laying angle, and first prepreg tape and second prepreg tape exist
Interweave when laying and carry out laying, comprising the following steps:
(1) at interval of one the first prepreg tape of the first width laying, until being paved with die surface, first width is not less than institute
State the bandwidth of the first prepreg tape；
(2) at interval of one the second prepreg tape of the second width laying, until being paved with the die surface, second width is not small
In the bandwidth of second prepreg tape；
(3) in each interval, close to the first good prepreg tape of laying, one first prepreg tape of laying, until being paved with
The die surface；
(4) in each interval, close to the second good prepreg tape of laying, one second prepreg tape of laying, until being paved with
The die surface；
(5) step (3) and (4) are repeated, until the spacing between good the first prepreg tape of adjacent two of laying is respectively less than described
The bandwidth of first prepreg tape, the spacing between two adjacent the second prepreg tapes are respectively less than the bandwidth of second prepreg tape, stop
Only laying；Or
First prepreg tape and second prepreg tape interweave in laying carries out laying, comprising the following steps:
1) one the first prepreg tape of laying；
2) one the second prepreg tape of laying；
3) spaced another the first prepreg tape of first width laying is presoaked with the first of last laying；
4) spaced another the second prepreg tape of second width laying is presoaked with the second of last laying；
5) it is repeated in step 3) and 4), until being paved with the die surface；
6) in an interval of the first good prepreg tape of laying, close to the first good prepreg tape laying one of laying described in one
The first prepreg tape of item；
7) in an interval of the second good prepreg tape of laying, close to the second good prepreg tape laying one of laying described in one
The second prepreg tape of item；
8) then, in another interval of the first good prepreg tape of the laying, close to described in one laying it is good first
Another the first prepreg tape of prepreg tape laying；
9) in another interval of the second good prepreg tape of the laying, close to the second good preimpregnation of laying described in one
Band, another the second prepreg tape of laying；
10) step 8) and 9) is repeated, until being paved with the die surface；
Repeat step 6) -9) until the spacing between good adjacent two of laying first prepreg tape is less than described first in advance
The bandwidth of band is soaked, the distance between described second prepreg tape of adjacent two is less than the bandwidth of second prepreg tape, stops paving
It puts.
2. structure according to claim 1, which is characterized in that the alternating layer further includes third laying, the third paving
Layer is formed by a plurality of third prepreg tape with third laying angle laying, first prepreg tape, second prepreg tape and described
Third prepreg tape interweaves in laying carries out laying, so that first laying, second laying and the third laying are handed over
Folded, the third laying angle, the first laying angle, the second laying angle are different.
3. a kind of forming method of composite material shock resistance structure, which comprises the following steps:
Step 1: first in die surface winding or one layer of annulate lamella of laying；
Step 2: the laying alternating layer on the annulate lamella of formation；
Step 3: and then wound again on the alternating layer of formation or one layer of annulate lamella of laying；
Wherein, the winding of annulate lamella described in step 1 and step 3 or laying method include:
Along mold is circumferentially wound or laying annulate lamella prepreg tape, until being paved with the die surface, annulate lamella is formed；
In step 2, the laying method of the alternating layer includes:
In the annular layer surface of formation, according to first laying angle the first prepreg tape of laying, to form the first laying；
According to second laying angle the second prepreg tape of laying, to form the second laying, wherein first prepreg tape and described
Two prepreg tapes interweave in laying carries out laying, and the first laying angle is different with the second laying angle, and described first
Laying and second laying, which overlap, forms the alternating layer, and first prepreg tape and second prepreg tape are handed in laying
Knit carry out laying, comprising the following steps:
(1) at interval of one the first prepreg tape of the first width laying, until being paved with the die surface, first width is not small
In the bandwidth of first prepreg tape；
(2) at interval of one the second prepreg tape of the second width laying, until being paved with the die surface, second width is not small
In the bandwidth of second prepreg tape；
(3) in each interval, close to the first good prepreg tape of laying, one first prepreg tape of laying, until being paved with
The die surface；
(4) in each interval, close to the second good prepreg tape of laying, one second prepreg tape of laying, until being paved with
The die surface；
(5) step (3) and (4) are repeated, until the spacing between good the first prepreg tape of adjacent two of laying is respectively less than described
The bandwidth of first prepreg tape, the spacing between two adjacent the second prepreg tapes are respectively less than the bandwidth of second prepreg tape, stop
Only laying；Or
First prepreg tape and second prepreg tape interweave in laying carries out laying, comprising the following steps:
1) one the first prepreg tape of laying；
2) one the second prepreg tape of laying；
3) spaced another the first prepreg tape of first width laying is presoaked with the first of last laying；
4) spaced another the second prepreg tape of second width laying is presoaked with the second of last laying；
5) it is repeated in step 3) and 4), until being paved with the die surface；
6) in an interval of the first good prepreg tape of laying, close to the first good prepreg tape laying one of laying described in one
The first prepreg tape of item；
7) in an interval of the second good prepreg tape of laying, close to the second good prepreg tape laying one of laying described in one
The second prepreg tape of item；
8) then, in another interval of the first good prepreg tape of the laying, close to described in one laying it is good first
Another the first prepreg tape of prepreg tape laying；
9) in another interval of the second good prepreg tape of the laying, close to the second good preimpregnation of laying described in one
Band, another the second prepreg tape of laying；
10) step 8) and 9) is repeated, until being paved with the die surface；
Repeat step 6) -9) until the spacing between good adjacent two of laying first prepreg tape is less than described first in advance
The bandwidth of band is soaked, the distance between described second prepreg tape of adjacent two is less than the bandwidth of second prepreg tape, stops paving
It puts.
4. forming method according to claim 3, which is characterized in that the laying method of the alternating layer includes:
In the annular layer surface of formation, according to first laying angle the first prepreg tape of laying, to form the first laying；
According to second laying angle the second prepreg tape of laying, to form the second laying；
According to third laying angle laying third prepreg tape, to form third laying, wherein first prepreg tape, described second
Prepreg tape and the third prepreg tape interweave in laying carries out laying, the first laying angle, the second laying angle
Different with the third laying angle, first laying, second laying and the third laying are overlapping to form institute
State alternating layer.
5. forming method according to claim 3, which is characterized in that adjacent two in the same direction of the alternating layer
0.5mm-1mm is divided between prepreg tape, the annulate lamella prepreg tape in winding or laying, take between two adjacent rings by nothing
Connect gapless.
6. forming method according to claim 3, it is characterised in that:
With first direction along the mold is circumferentially wound or laying annulate lamella prepreg tape in step 1, with second direction edge in step 3
The mold is circumferentially wound or another annulate lamella prepreg tape of laying, the first direction and the second direction are opposite.
7. forming method according to claim 3, which is characterized in that the prepreg that the prepreg tape uses is pre- for carbon fiber
Soak one of material, Aramid Prepreg, glass fibre prepreg or more than one combinations.
8. forming method according to claim 3, which is characterized in that the alternating layer by automatic placement technology laying at
Type, the annulate lamella are formed by automatic placement technology or with winding technology.
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| CN107498942A (en) * | 2017-09-01 | 2017-12-22 | 瑞安市联成电器配件有限公司 | The processing method of high intensity shell case |
| CN107891631A (en) * | 2017-11-23 | 2018-04-10 | 航天材料及工艺研究所 | A kind of composite pilotaxitic texture and its laying method |
| CN108314879B (en) * | 2018-03-15 | 2023-04-11 | 浙江大学 | In-plane all-dimensional zero-expansion composite laminated board |
| CN108724761B (en) * | 2018-05-07 | 2020-09-18 | 北京宇航***工程研究所 | Non-skin grid payload supporting structure and preparation method thereof |
| CN108995240B (en) * | 2018-06-20 | 2021-02-09 | 航天材料及工艺研究所 | Forming method of composite material cylindrical component |
| CN109128176B (en) * | 2018-07-06 | 2020-11-24 | 江西洪都航空工业集团有限责任公司 | Preparation method of high-impact-resistance composite material |
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| CN103747942A (en) * | 2011-08-05 | 2014-04-23 | 西格里碳素欧洲公司 | Component made of a fiber composite material comprising wound layers |
| CN103791174A (en) * | 2012-11-01 | 2014-05-14 | 合肥杰事杰新材料股份有限公司 | Composite wound thermoplastic glass-reinforced-plastic pipe and production method thereof |
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| JP2000236781A (en) * | 1998-12-25 | 2000-09-05 | Ryobi Ltd | Rod body for fishing rod, internally threadable fishing rod and its production |
| JP5697506B2 (en) * | 2011-03-25 | 2015-04-08 | シキボウ株式会社 | Dry preform, annular structure made of composite material, and manufacturing method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103747942A (en) * | 2011-08-05 | 2014-04-23 | 西格里碳素欧洲公司 | Component made of a fiber composite material comprising wound layers |
| CN103791174A (en) * | 2012-11-01 | 2014-05-14 | 合肥杰事杰新材料股份有限公司 | Composite wound thermoplastic glass-reinforced-plastic pipe and production method thereof |
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