WO2013070099A1 - Composite passive armor protection - Google Patents

Composite passive armor protection Download PDF

Info

Publication number
WO2013070099A1
WO2013070099A1 PCT/PL2012/000116 PL2012000116W WO2013070099A1 WO 2013070099 A1 WO2013070099 A1 WO 2013070099A1 PL 2012000116 W PL2012000116 W PL 2012000116W WO 2013070099 A1 WO2013070099 A1 WO 2013070099A1
Authority
WO
WIPO (PCT)
Prior art keywords
armor protection
fibers
tubes
passive armor
composite passive
Prior art date
Application number
PCT/PL2012/000116
Other languages
French (fr)
Inventor
Jerzy Sobczak
Paweł DARŁAK
Piotr DŁUGOSZ
Original Assignee
Instytut Odlewnictwa
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Instytut Odlewnictwa filed Critical Instytut Odlewnictwa
Priority to US14/355,222 priority Critical patent/US20150268006A1/en
Priority to EP12798896.2A priority patent/EP2776781B1/en
Publication of WO2013070099A1 publication Critical patent/WO2013070099A1/en
Priority to ZA2014/02981A priority patent/ZA201402981B/en
Priority to IL232349A priority patent/IL232349A/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41H—ARMOUR; ARMOURED TURRETS; ARMOURED OR ARMED VEHICLES; MEANS OF ATTACK OR DEFENCE, e.g. CAMOUFLAGE, IN GENERAL
    • F41H5/00—Armour; Armour plates
    • F41H5/02—Plate construction
    • F41H5/04—Plate construction composed of more than one layer
    • F41H5/0492—Layered armour containing hard elements, e.g. plates, spheres, rods, separated from each other, the elements being connected to a further flexible layer or being embedded in a plastics or an elastomer matrix
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41H—ARMOUR; ARMOURED TURRETS; ARMOURED OR ARMED VEHICLES; MEANS OF ATTACK OR DEFENCE, e.g. CAMOUFLAGE, IN GENERAL
    • F41H5/00—Armour; Armour plates
    • F41H5/02—Plate construction
    • F41H5/04—Plate construction composed of more than one layer
    • F41H5/0414—Layered armour containing ceramic material
    • F41H5/0421—Ceramic layers in combination with metal layers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41H—ARMOUR; ARMOURED TURRETS; ARMOURED OR ARMED VEHICLES; MEANS OF ATTACK OR DEFENCE, e.g. CAMOUFLAGE, IN GENERAL
    • F41H5/00—Armour; Armour plates
    • F41H5/02—Plate construction
    • F41H5/04—Plate construction composed of more than one layer
    • F41H5/0414—Layered armour containing ceramic material
    • F41H5/0428—Ceramic layers in combination with additional layers made of fibres, fabrics or plastics
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41H—ARMOUR; ARMOURED TURRETS; ARMOURED OR ARMED VEHICLES; MEANS OF ATTACK OR DEFENCE, e.g. CAMOUFLAGE, IN GENERAL
    • F41H5/00—Armour; Armour plates
    • F41H5/02—Plate construction
    • F41H5/04—Plate construction composed of more than one layer
    • F41H5/0442—Layered armour containing metal
    • F41H5/0457—Metal layers in combination with additional layers made of fibres, fabrics or plastics

Definitions

  • the invention relates to a composite passive armor protection to safeguard objects from the effect of projectiles and projectile fragments.
  • the energy- absorbing elements are embedded in a non-metallic matrix. Elements, having the shape of cylindrical bodies, are arranged in layers and placed next to each other or at certain distances.
  • the protective screen to defend against explosion as disclosed in PL171251 is made of air-permeable side layers, having the form of precut sheets of metal foil, and of a porous core, placed between these foils, containing the beads or ellipsoids made of the same material as the sheet.
  • the sheets of metal foil contain magnesium alloy.
  • a passive armor known from the PL181177 description consists of the main inner protective metal layer and the outer protective layer comprising a number of rectangular, metallic cassettes containing ceramic layers.
  • a safety element used to protect the life and health of the crew of a military vehicle against the explosion of mine under this vehicle known from the PL206571 description consists of a shield having through-holes on its entire surface.
  • the shield is connected by means of the vertical supports with a thin intermediate plate, which, through springs and connected to these springs mounting plates, is attached to the underside of the vehicle floor. Discharge ducts are running from the shield surface.
  • a composite passive armor protection according to the present invention comprises a structure, embedded in the light alloy matrix, said structure being made of elements in the form of geometric solids resting on a frame in the form of a grid made of the permanently interconnected layers of tubes, wherein fibers are preferably passing through the tubes, and the geometric solids are embedded in the matrix to a level above one half of their total height.
  • the geometric solids are embedded in the grid openings.
  • the geometric solids are in the shape of spheres or truncated pyramids with a square base.
  • the geometric solids are ceramic or metallic solids.
  • the fibers are successively passing through all the tubes in one plane and the ends of the fibers are connected to each other, or fibers are interconnected in such a way that the fiber ends passing through the tubes in one plane are connected to the fiber ends passing through the tubes in the next plane.
  • the fibers are aramid or steel fibers.
  • a composite passive armor protection according to the present invention is resistant to projectile impacts.
  • the protruding part of geometric solids prevents the penetration of AP-type projectiles, projectile fragments, and small arms projectiles.
  • the mere shape and very hard material of the geometric solids cause distortion in the projectile flight path, or ricochet and weakening of the projectile kinetic energy. Brackets and rods passing through these brackets reinforce the plate and act as a shock absorbing cushion for the geometric solids.
  • the matrix made of a light alloy protects the armor against tearing.
  • the composite passive armor protection according to the present invention, the matrix whereof is made of a light alloy is highly effective in protection against the AP projectiles of up to 12.6 mm. The use of light alloy as a matrix material reduces the armor weight, thereby increasing the mobility of the protected vehicles, reducing fuel consumption and enabling the armor to be used as a means of protection for the aircraft and watercraft.
  • the composite passive armor protection is made by casting methods.
  • the structure composed of geometric solids resting on a grid made of tubes is placed in a specially designed foundry mould and poured with a liquid light metal alloy.
  • the alloy solidification is carried out under the conditions of elevated pressure.
  • the armor is subjected to machining to the required dimensions.
  • a composite passive armor protection comprises a structure embedded in the light metal alloy matrix 1 , wherein said structure is made of ceramic balls 2, resting on a grid formed by two layers of tubes 3 arranged at an angle to each other, wherein through the tubes 3 fibers 4 are passing.

Landscapes

  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
  • Rigid Pipes And Flexible Pipes (AREA)

Abstract

A composite passive armor protection comprises a structure embedded in the light alloy matrix (1), wherein said structure is made of elements in the form of geometric solids (2), resting on a frame in the form of a grid made of the permanently connected layers of tubes (3), wherein preferably through the tubes (3) are passing fibers (4), and the geometric solids (2) are embedded in the light metal alloy matrix (1) to a level above one half of their total height.

Description

Composite passive armor protection
The invention relates to a composite passive armor protection to safeguard objects from the effect of projectiles and projectile fragments.
As known from the DE1578324 description of armor, the energy- absorbing elements are embedded in a non-metallic matrix. Elements, having the shape of cylindrical bodies, are arranged in layers and placed next to each other or at certain distances. On the other hand, the protective screen to defend against explosion as disclosed in PL171251 is made of air-permeable side layers, having the form of precut sheets of metal foil, and of a porous core, placed between these foils, containing the beads or ellipsoids made of the same material as the sheet. Preferably, the sheets of metal foil contain magnesium alloy. A passive armor known from the PL181177 description consists of the main inner protective metal layer and the outer protective layer comprising a number of rectangular, metallic cassettes containing ceramic layers. The spaces between the ceramic layers and the surfaces of the cassette walls are filled with a composition of small ceramic pieces mixed with glue and concrete. The cassettes in an outer protective layer of the armor are removably secured to the main inner protective metal layer by means of various connecting and clamping elements. A safety element used to protect the life and health of the crew of a military vehicle against the explosion of mine under this vehicle known from the PL206571 description consists of a shield having through-holes on its entire surface. The shield is connected by means of the vertical supports with a thin intermediate plate, which, through springs and connected to these springs mounting plates, is attached to the underside of the vehicle floor. Discharge ducts are running from the shield surface.
A composite passive armor protection according to the present invention comprises a structure, embedded in the light alloy matrix, said structure being made of elements in the form of geometric solids resting on a frame in the form of a grid made of the permanently interconnected layers of tubes, wherein fibers are preferably passing through the tubes, and the geometric solids are embedded in the matrix to a level above one half of their total height.
Preferably, the geometric solids are embedded in the grid openings. The geometric solids are in the shape of spheres or truncated pyramids with a square base.
The geometric solids are ceramic or metallic solids.
The fibers are successively passing through all the tubes in one plane and the ends of the fibers are connected to each other, or fibers are interconnected in such a way that the fiber ends passing through the tubes in one plane are connected to the fiber ends passing through the tubes in the next plane.
The fibers are aramid or steel fibers.
Owing to its specific construction, a composite passive armor protection according to the present invention is resistant to projectile impacts. The protruding part of geometric solids prevents the penetration of AP-type projectiles, projectile fragments, and small arms projectiles. The mere shape and very hard material of the geometric solids cause distortion in the projectile flight path, or ricochet and weakening of the projectile kinetic energy. Brackets and rods passing through these brackets reinforce the plate and act as a shock absorbing cushion for the geometric solids. The matrix made of a light alloy protects the armor against tearing. The composite passive armor protection according to the present invention, the matrix whereof is made of a light alloy, is highly effective in protection against the AP projectiles of up to 12.6 mm. The use of light alloy as a matrix material reduces the armor weight, thereby increasing the mobility of the protected vehicles, reducing fuel consumption and enabling the armor to be used as a means of protection for the aircraft and watercraft.
The composite passive armor protection is made by casting methods. The structure composed of geometric solids resting on a grid made of tubes is placed in a specially designed foundry mould and poured with a liquid light metal alloy. The alloy solidification is carried out under the conditions of elevated pressure. As a last step, the armor is subjected to machining to the required dimensions.
The composite passive armor protection according to the present invention is shown in a sample embodiment in the accompanying drawings, where Figure 1 shows a vertical section of the composite passive armor protection, and Figure 2 its schematic representation.
A composite passive armor protection comprises a structure embedded in the light metal alloy matrix 1 , wherein said structure is made of ceramic balls 2, resting on a grid formed by two layers of tubes 3 arranged at an angle to each other, wherein through the tubes 3 fibers 4 are passing.

Claims

Patent claims
1. A composite passive armor protection having a structure embedded in the matrix, characterized in that it is made of a structure embedded in the light alloy matrix 1 , wherein said structure is made of elements in the form of geometric solids 2, resting on a frame in the form of a grid made of the permanently interconnected layers of tubes 3, wherein preferably through the tubes 3 fibers 4 are passing, and the geometric solids 2 are embedded in the light alloy matrix 1 to a level above one half of their total height.
2. The composite passive armor protection of claim 1 , wherein the tubes
3 in a layer are arranged parallel to each other.
3. The composite passive armor protection of claim 1 , wherein said geometric solids 2 are embedded in the grid openings.
4. The composite passive armor protection of claim 1 , wherein said geometric solids 2 are in the shape of spheres.
5. The composite passive armor protection of claim 1 , wherein said geometric solids 2 are in the shape of truncated pyramids with a square base.
6. The composite passive armor protection of claim 1 , wherein said geometric solids 2 are ceramic solids or metallic solids.
7. The composite passive armor protection of claim 1 , wherein fibers 4 are successively passing through all the tubes 3 in one layer and the ends of fibers 4 are connected to each other.
8. The composite passive armor protection of claim 1 , wherein fibers 4 are connected in such a way that the ends of the fibers 4 passing through the tubes 3 in one layer are connected to the ends of the fibers
4 passing through the tubes 3 in the adjacent layer.
9. The composite passive armor protection of claim 1 , wherein the fibers 4 are aramid or steel fibers.
PCT/PL2012/000116 2011-11-07 2012-10-25 Composite passive armor protection WO2013070099A1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
US14/355,222 US20150268006A1 (en) 2011-11-07 2012-10-25 Composite passive armor protection
EP12798896.2A EP2776781B1 (en) 2011-11-07 2012-10-25 Composite passive armor protection
ZA2014/02981A ZA201402981B (en) 2011-11-07 2014-04-24 Composite passive armor protection
IL232349A IL232349A (en) 2011-11-07 2014-04-29 Composite passive armor protection

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
PL396895A PL222728B1 (en) 2011-11-07 2011-11-07 Passive composite protective armor
PLP.396895 2011-11-07

Publications (1)

Publication Number Publication Date
WO2013070099A1 true WO2013070099A1 (en) 2013-05-16

Family

ID=47326294

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/PL2012/000116 WO2013070099A1 (en) 2011-11-07 2012-10-25 Composite passive armor protection

Country Status (6)

Country Link
US (1) US20150268006A1 (en)
EP (1) EP2776781B1 (en)
IL (1) IL232349A (en)
PL (1) PL222728B1 (en)
WO (1) WO2013070099A1 (en)
ZA (1) ZA201402981B (en)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1578324A1 (en) 1965-04-26 1970-01-02 Aerojet General Co Armor
US3705558A (en) * 1963-04-24 1972-12-12 Gen Motors Corp Armor
PL206571A1 (en) 1978-05-04 1980-01-02 Zaklady Maszyn I Urzadzen T Un
PL171251B1 (en) 1991-10-25 1997-03-28 Firexx Corp Protective screen for protection against explosion
PL181177B1 (en) 1996-09-10 2001-06-29 Wojskowy Inst Techniczny Uzbro Passive armour
US7694621B1 (en) * 2005-07-22 2010-04-13 Mkp Structural Design Associates, Inc. Lightweight composite armor

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3523057A (en) * 1965-10-24 1970-08-04 Schjeldahl Co G T Ball and plastic armour plate
US5804757A (en) * 1996-03-29 1998-09-08 Real World Consulting, Inc. Flexible, lightweight, compound body armor
US5705764A (en) * 1996-05-30 1998-01-06 United Defense, L.P. Interlayer for ceramic armor
EP0967453A1 (en) * 1998-06-25 1999-12-29 Armortec Incorporated Flexible, impact-resistant materials
US7866248B2 (en) * 2006-01-23 2011-01-11 Intellectual Property Holdings, Llc Encapsulated ceramic composite armor
US20080307553A1 (en) * 2007-06-12 2008-12-18 Energy Science Llc Method And Apparatus For Protecting Against Ballistic Projectiles

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3705558A (en) * 1963-04-24 1972-12-12 Gen Motors Corp Armor
DE1578324A1 (en) 1965-04-26 1970-01-02 Aerojet General Co Armor
PL206571A1 (en) 1978-05-04 1980-01-02 Zaklady Maszyn I Urzadzen T Un
PL171251B1 (en) 1991-10-25 1997-03-28 Firexx Corp Protective screen for protection against explosion
PL181177B1 (en) 1996-09-10 2001-06-29 Wojskowy Inst Techniczny Uzbro Passive armour
US7694621B1 (en) * 2005-07-22 2010-04-13 Mkp Structural Design Associates, Inc. Lightweight composite armor

Also Published As

Publication number Publication date
PL396895A1 (en) 2013-05-13
EP2776781B1 (en) 2016-03-30
PL222728B1 (en) 2016-08-31
IL232349A0 (en) 2014-06-30
EP2776781A1 (en) 2014-09-17
ZA201402981B (en) 2015-09-30
IL232349A (en) 2017-04-30
US20150268006A1 (en) 2015-09-24

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