CN107358009A - A kind of virtual modeling method of particulate reinforced composite - Google Patents
A kind of virtual modeling method of particulate reinforced composite Download PDFInfo
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- CN107358009A CN107358009A CN201710715993.4A CN201710715993A CN107358009A CN 107358009 A CN107358009 A CN 107358009A CN 201710715993 A CN201710715993 A CN 201710715993A CN 107358009 A CN107358009 A CN 107358009A
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Abstract
The invention discloses a kind of virtual modeling method of particulate reinforced composite, based on ABAQUS platforms and python language, includes the determination of material three-dimensional physical dimension；During particulate reinforced composite 3 d geometric modeling, using the method for imaginary grid, the public summit of adjacent grid is only distributed a spheric granules, the center of gravity of particle is grid summit, in square, spheric granules is to strengthen phase, and remainder is referred to as matrix；The scripted code recorded with ABAQUS arranges compiling and forms Python automatic modelings calculating script, the spheric granules distribution rule for programming generation is input in script file in the form of coordinate, directly submit kernel operation in ABAQUS, and research variable is arranged to the function variable in Python scripts, by selecting different volume fraction ratios to generate the geometrical model of corresponding particulate reinforced composite.Independent of any CAD software outside ABAQUS, the dependence and necessity to software beyond ABAQUS are greatly reduced.
Description
Technical field
The present invention relates to a kind of Computerized three-dimensional Dummy modeling field, a kind of specifically particulate reinforced composite
Virtual geometric modeling method, particularly a kind of particulate reinforced composite three being related to based on ABAQUS platforms and python language
Tie up Geometric Modeling Method.
Background technology
ABAQUS is a set of powerful engineering simulation finite element analysis software, and its nonlinear analysis, computing function are strong
Greatly, can solve linear and complicated nonlinear problem.Due to analysis ability outstanding ABAQUS and simulate the reliable of complication system
Property so that ABAQUS is widely used in the industry and research of various countries.Realized by writing kernel script whole limited
Meta Model process is one of approach of ABAQUS secondary development.ABAQUS softwares possess good application programming interfaces in itself, and
It is an expansion interface of Python.Using the interface friendly man-machine interaction can be created come the application program developed
Interface, and then realize the operation to software kernel.ABAQUS script interfaces and ABAQUS/CAE correspondence are as shown in Figure 1.
Geometric modeling system of the ABAQUS software kits containing a feature based, it can be established under this system module simple
Geometrical model.But its D modeling function is limited, generally required for the threedimensional model of complexity by the modeling of other CAD softwares,
Then it is saved as intermediate form (stp/step or igs forms) and imports ABAQUS software editings calling afterwards.This is not required nothing more than
ABAQUS user has both the skilled basis for using CAD software, also to have higher requirement using the hardware configuration of computer.
Because the compatibility between different software and multiple recognition capability are limited, the mesh generation and material with complex three-dimensional mould of subsequent analysis can be influenceed
Type establishes process so that Geometric Modeling is more time-consuming, cumbersome.
The content of the invention
To realize the three-dimensional geometry finite element mould of simple and efficient drafting particulate reinforced composite in ABAQUS softwares
Type, user is reduced to the dependence and necessity of CAD software, reduces and is required using computer hardware, avoid simultaneous between different software
The drawbacks of capacitive and multiple recognition capability, secondary development now is carried out to ABAQUS software systems：The script generation recorded with ABAQUS
Code arranges compiling and forms Python automatic modelings calculating script, and this script can directly submit kernel operation in ABAQUS, and will research
Variable is arranged to the function variable in Python scripts, compound by selecting different volume fraction ratios to generate corresponding particle enhancing
The geometrical model of material.
In order to solve the above-mentioned technical problem, the technical solution adopted by the present invention is：A kind of void of particulate reinforced composite
Intend modeling method, based on ABAQUS platforms and python language, comprise the following steps：
Step (1), the determination of material three-dimensional physical dimension：If assuming that it is uniformly distributed in the square that a length of side is 9i
Dry spheric granules, the 9i length of sides are divided into 9 deciles, each cut-point is a spheric granules center of gravity, then uniform 10 in a line
Spheric granules, the percentage that spheric granules volume accounts for whole square volume is the volume fraction ratio of material, if the volume fraction ratio of material
For ρ, the size of the volume fraction ratio value of the diameter calculating acquisition material by controlling spheric granules；
Step (2), during particulate reinforced composite 3 d geometric modeling, to prevent particle overlapping phenomenon, use
The method of imaginary grid, the public summit of adjacent grid are only distributed a spheric granules, and the center of gravity of particle is grid summit,
In square, spheric granules is to strengthen phase, and remainder is referred to as matrix；
Step (3), the scripted code recorded with ABAQUS arrange compiling and form Python automatic modelings calculating script, will
The spheric granules of programming generation is input in script file according to the distribution rule of step (2) in the form of coordinate, and this script is straight
Connect and submit kernel operation in ABAQUS, and research variable is arranged to the function variable in Python scripts, it is different by selecting
Volume fraction ratio can generate the geometrical model of corresponding particulate reinforced composite.
In the step (1), particle reinforced material pattern is shot using super depth-of-field microscope, it is different according to material
Volume fraction ratio, 2 region shootings of material selection of every kind of volume fraction ratio, it is 1mm that each photo, which chooses 2 areas,2Square, by it
Amplification 400 times after, counted, take its average, the spherical particle diameters being calculated, after be converted into volume fraction ratio ρ.
In the step (3), it is combined together between particle and matrix in the form of binding.
Compared with prior art, beneficial effects of the present invention are：
(1) virtual modeling method of particulate reinforced composite of the present invention is soft independent of any CAD outside ABAQUS
Part, enter without require that user acquires skill to CAD software indispensability, greatly reduce the dependence to software beyond ABAQUS
And necessity.
(2) ABAQUS softwares require very high to the hardware configuration of computer in itself, and once need to complete in CAD software
The Geometric Modeling of intermediate form, not only need to separate extra internal memory operation CAD software, as resolution ratio etc. is a series of soft
Part service condition reduces the running environment of ABAQUS softwares so that running software is more time-consuming.Meanwhile exported by CAD software
Intermediate form file, also can because compatibility between different software and multiple recognition capability can not be intact importing, and the file imported
The time of more complicated occupancy is longer.
(3) modeling method of the present invention greatly reduces the Geometric Modeling time of user, may be implemented in one in ABAQUS softwares
Key generates the function of particulate reinforced composite threedimensional model.
(4) develop plug-in programs using Python to be called by main program, to realize the operation to local CAE
More professional finite element modeling module can be obtained by carrying out automation modeling and analysis, the self-defined exploitation program of addition.
Brief description of the drawings
Fig. 1 is ABAQUS script interfaces and ABAQUS/CAE correspondence.
Fig. 2 is the program operational process schematic diagram of the present invention.
The system principle schematic diagram of Fig. 3 present invention.
Fig. 4 spheric granules distribution schematic diagrams.
The high body sub-models of Fig. 5.
Body sub-model in Fig. 6.
The low body sub-models of Fig. 7.
Embodiment
The present invention is described in further detail with reference to the accompanying drawings and detailed description：
As shown in Fig. 2 the virtual modeling method of the particulate reinforced composite of the present invention, based on ABAQUS platforms and
Python language, comprises the following steps：
Step (1), the determination of material three-dimensional physical dimension：If assuming that it is uniformly distributed in the square that a length of side is 9i
Dry spheric granules, the 9i length of sides are divided into 9 deciles, each cut-point is a spheric granules center of gravity, then uniform 10 in a line
Spheric granules, the percentage that spheric granules volume accounts for whole square volume is the volume fraction ratio of material, if the volume fraction ratio of material
For ρ, the size of the volume fraction ratio value of the diameter calculating acquisition material by controlling spheric granules；
Step (2), during particulate reinforced composite 3 d geometric modeling, to prevent particle overlapping phenomenon, use
The method of imaginary grid, the public summit of adjacent grid are only distributed a spheric granules, and the center of gravity of particle is grid summit,
In square, spheric granules is to strengthen phase, and remainder is referred to as matrix；
Step (3), the scripted code recorded with ABAQUS arrange compiling and form Python automatic modelings calculating script, will
The spheric granules of programming generation is input in script file according to the distribution rule of step (2) in the form of coordinate, and this script is straight
Connect and submit kernel operation in ABAQUS, and research variable is arranged to the function variable in Python scripts, it is different by selecting
Volume fraction ratio can generate the geometrical model of corresponding particulate reinforced composite.
In the step (1), particle reinforced material pattern is shot using super depth-of-field microscope, it is different according to material
Volume fraction ratio, 2 region shootings of material selection of every kind of volume fraction ratio, it is 1mm that each photo, which chooses 2 areas,2Square, by it
Amplification 400 times after, counted, take its average, the spherical particle diameters being calculated, after be converted into volume fraction ratio ρ.
In the step (3), it is combined together between particle and matrix in the form of binding.
The virtual modeling method of particulate reinforced composite of the present invention, not only reduce user to the dependence of CAD software and
Necessity, reduce and required using computer hardware, the drawbacks of avoiding compatibility and multiple recognition capability between different software, have stronger
Human-computer interaction interface (as shown in Figure 3), the Geometric Modeling time of user is also greatly reduced, is realized one in ABAQUS softwares
Key generates the function of particulate reinforced composite threedimensional model.
Now by taking the foundation of high volume fraction ratio particulate reinforced composite model as an example, the implementation process of the present invention is illustrated.Its
It is as follows to implement step：
(1) the particulate reinforced composite 3 d geometric modeling method based on ABAQUS platforms and python language, utilize
Super depth-of-field microscope is shot to particle reinforced material pattern.The material that volume fraction ratio is 62.5% is chosen, the material is chosen and appoints
The 2 regions shooting for plane of anticipating.It is 1mm that each photo, which chooses 2 areas,2Square, after being amplified 400 times, united
Meter, take the average of its particle number, after according to material volume fraction ratio ρ=62.5%.The spherical particle diameters being calculated are about
40μm。
(2) determination of material three-dimensional physical dimension：If assuming that it is uniformly distributed dry bulb in the square that a length of side is 9l
Shape particle, as shown in Figure 4.The 9i length of sides are divided into 9 deciles, each cut-point is a spheric granules center of gravity, then can in a line
Uniform 10 spheric granules, the percentage that spheric granules volume accounts for whole square volume is the volume fraction ratio of material, if material
Volume fraction ratio be ρ=62.5%, volume fraction ratio can be passed through and obtain a diameter of 40 μm of spheric granules.
(3) coordinate of spheric granules is determined：During particulate reinforced composite 3 d geometric modeling, using virtual lattice
The method of son avoids particle overlapping phenomenon, and (public) summit of (adjacent) grid is only distributed a spheric granules, each particle
At 4 a length of l × l of adjacent edge small square public vertex, (similar Fig. 6, Fig. 7 is respectively middle body as shown in Figure 5
Point ratio, low volume fraction ratio particulate reinforced composite), this length of side be 9i square in, spheric granules be enhancing phase, remaining
Part is referred to as matrix.
(4) model creation：The scripted code recorded with ABAQUS arranges compiling and forms Python automatic modelings calculating pin
This, the spheric granules for programming generation is input in script file according to the distribution rule described in step (2) in the form of coordinate,
This script can directly submit kernel operation in ABAQUS, and research variable is arranged to the function variable in Python scripts, pass through
Different volume fraction ratios is selected to generate the geometrical model of corresponding particulate reinforced composite.
(5) spheric granules is generated by uniform coordinate by programming, and coordinate is input in software, completes based on ABAQUS
Model after grain enhancing composite Dummy modeling generation is shown in Fig. 5, Fig. 6, Fig. 7.
Dummy model based on ABAQUS particulate reinforced composites, the essence of implementation process can be established by above flow
Trueization and easy are simulated.The present invention is applied to the establishment of composite processing part model, and workpiece mould is obtained to be easy, accurate
Type provides more professional man-machine interaction method.
In summary, the virtual modeling method of this particulate reinforced composite proposed by the present invention, can not only be reduced
To the dependence and necessity of CAD software, reduce and required using computer hardware, avoid compatibility and multiple identification between different software
The drawbacks of ability, can also be by selecting the different volume fraction ratio of material to generate the geometrical model of corresponding particulate reinforced composite.
Through verifying repeatedly, when the virtual modeling method of this particulate reinforced composite not only greatly reduces the Geometric Modeling of user
Between, it is truly realized the key systematic function of particulate reinforced composite 3-D geometric model one so that the modeling of particle reinforced material
It is more professional.
Although above in conjunction with accompanying drawing, invention has been described, and the invention is not limited in above-mentioned specific implementation
Mode, above-mentioned embodiment are only illustrative, rather than restricted, are come for one of ordinary skill in the art
Say, on the premise of inventive principle is not departed from, some improvements and modifications can also be made, these improvements and modifications belong to this hair
Bright protection domain.
Claims (3)
1. a kind of virtual modeling method of particulate reinforced composite, based on ABAQUS platforms and python language, its feature exists
In comprising the following steps：
Step (1), the determination of material three-dimensional physical dimension：If assuming that it is uniformly distributed dry bulb in the square that a length of side is 9i
Shape particle, the 9i length of sides are divided into 9 deciles, each cut-point is a spheric granules center of gravity, then in a line uniform 10 it is spherical
Particle, the percentage that spheric granules volume accounts for whole square volume is the volume fraction ratio of material, if the volume fraction ratio of material is ρ,
By controlling the diameter of spheric granules to calculate the size for the volume fraction ratio value for obtaining material；
Step (2), during particulate reinforced composite 3 d geometric modeling, to prevent particle overlapping phenomenon, using virtual
The method of grid, the public summit of adjacent grid are only distributed a spheric granules, and the center of gravity of particle is grid summit, in pros
In body, spheric granules is to strengthen phase, and remainder is referred to as matrix；
Step (3), the scripted code recorded with ABAQUS arrange compiling and form Python automatic modelings calculating script, will program
The spheric granules of generation is input in script file according to the distribution rule of step (2) in the form of coordinate, and this script directly carries
Kernel operation in ABAQUS is handed over, and research variable is arranged to the function variable in Python scripts, by selecting different body point
Than the geometrical model that can generate corresponding particulate reinforced composite.
2. the virtual modeling method of particulate reinforced composite according to claim 1, it is characterised in that the step (1)
In, particle reinforced material pattern is shot using super depth-of-field microscope, according to material difference volume fraction ratio, every kind of volume fraction ratio
2 region shootings of material selection, it is 1mm that each photo, which chooses 2 areas,2Square, after being amplified 400 times, united
Meter, take its average, the spherical particle diameters being calculated, after be converted into volume fraction ratio ρ.
3. the virtual modeling method of particulate reinforced composite according to claim 1, it is characterised in that the step (3)
In, it is combined together between particle and matrix in the form of binding.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109187334A (en) * | 2018-07-17 | 2019-01-11 | 昆明理工大学 | Consider non-linear and strain rate effect material interactive interface method for numerical simulation |
| CN109614657A (en) * | 2018-11-15 | 2019-04-12 | 天津大学 | A kind of three-dimensional parameterized Geometric Modeling Method of side abrasive grinding wheel based on ABAQUS software and python language |
| CN109614727A (en) * | 2018-12-17 | 2019-04-12 | 天津大学 | Ultrasonic wave added aperture drilling grinding wheel parametric modeling method based on ABAQUS software |
| CN111967066A (en) * | 2020-04-20 | 2020-11-20 | 北京航空航天大学 | Modeling method for three-dimensional microscopic structure of polymorphic particle reinforced composite material |
| CN113139320A (en) * | 2021-05-14 | 2021-07-20 | 上海交通大学 | Method for constructing three-dimensional microcosmic configuration of particle reinforced composite material |
| CN114184524A (en) * | 2021-11-29 | 2022-03-15 | 四川航天川南火工技术有限公司 | Quantitative analysis method for morphology of initiating explosive device medicament particles |
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| CN106446403A (en) * | 2016-09-22 | 2017-02-22 | 北京航空航天大学 | Virtual grinding wheel simulation method based on randomly distributed multiple abrasive particles |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109187334A (en) * | 2018-07-17 | 2019-01-11 | 昆明理工大学 | Consider non-linear and strain rate effect material interactive interface method for numerical simulation |
| CN109187334B (en) * | 2018-07-17 | 2020-11-17 | 昆明理工大学 | Material interaction interface numerical simulation method considering nonlinear and strain rate effects |
| CN109614657A (en) * | 2018-11-15 | 2019-04-12 | 天津大学 | A kind of three-dimensional parameterized Geometric Modeling Method of side abrasive grinding wheel based on ABAQUS software and python language |
| CN109614727A (en) * | 2018-12-17 | 2019-04-12 | 天津大学 | Ultrasonic wave added aperture drilling grinding wheel parametric modeling method based on ABAQUS software |
| CN111967066A (en) * | 2020-04-20 | 2020-11-20 | 北京航空航天大学 | Modeling method for three-dimensional microscopic structure of polymorphic particle reinforced composite material |
| CN111967066B (en) * | 2020-04-20 | 2022-10-28 | 北京航空航天大学 | Modeling method for three-dimensional microscopic structure of polymorphic particle reinforced composite material |
| CN113139320A (en) * | 2021-05-14 | 2021-07-20 | 上海交通大学 | Method for constructing three-dimensional microcosmic configuration of particle reinforced composite material |
| CN113139320B (en) * | 2021-05-14 | 2022-06-10 | 上海交通大学 | Method for constructing three-dimensional microcosmic configuration of particle reinforced composite material |
| CN114184524A (en) * | 2021-11-29 | 2022-03-15 | 四川航天川南火工技术有限公司 | Quantitative analysis method for morphology of initiating explosive device medicament particles |
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