EP2776782B1 - Composite passive armor protection - Google Patents

Composite passive armor protection Download PDF

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Publication number
EP2776782B1
EP2776782B1 EP12798897.0A EP12798897A EP2776782B1 EP 2776782 B1 EP2776782 B1 EP 2776782B1 EP 12798897 A EP12798897 A EP 12798897A EP 2776782 B1 EP2776782 B1 EP 2776782B1
Authority
EP
European Patent Office
Prior art keywords
armor protection
solids
composite passive
passive armor
geometric solids
Prior art date
Legal status (The legal status 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 status listed.)
Active
Application number
EP12798897.0A
Other languages
German (de)
French (fr)
Other versions
EP2776782A1 (en
Inventor
Jerzy Sobczak
Pawel Darlak
Piotr Dlugosz
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Instytut Odlewnictwa
Original Assignee
Instytut Odlewnictwa
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Application filed by Instytut Odlewnictwa filed Critical Instytut Odlewnictwa
Publication of EP2776782A1 publication Critical patent/EP2776782A1/en
Application granted granted Critical
Publication of EP2776782B1 publication Critical patent/EP2776782B1/en
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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

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 the PL171251 description 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.
  • Patent specification US 7, 833, 627 which forms the starting point for claim 1, discloses a composite armor having a layered metallic matrix structure with embedded ceramic elements, whereby the embedment ceramic elements are situated at an interface between the first inner casting and the second outer casting.
  • the composite passive armor protection according to the present invention comprises the features of claim 1.
  • the grooves in the upper plate are made in such a way that their axes coincide with the axes of the geometric solids resting in these grooves.
  • the geometric solids are spheres or truncated pyramids with a square base.
  • the geometric solids are ceramic or metallic solids.
  • the 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.
  • the layer between the plates, filled with the light alloy matrix material, forms an energy gap limiting crack propagation and resulting in dissipation of the kinetic energy of the projectile.
  • the task of the bottom plate is to completely arrest the projectile, the energy of which was reduced on the layer of the geometric solids resting on the grooved upper plate and in the energy gap.
  • the light alloy matrix 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 consists of two parallel plates 1 and 2, except that in the grooves 3 in the upper plate 1 are resting balls 4 embedded in the light alloy matrix 5 up to a level of the two-third of their diameter. Between the plates 1 and 2 there is a separating layer 6 made of a light alloy 5, wherein said layer is forming an energy gap.

Description

  • 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 the PL171251 description 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. Patent specification US 7, 833, 627 , which forms the starting point for claim 1, discloses a composite armor having a layered metallic matrix structure with embedded ceramic elements, whereby the embedment ceramic elements are situated at an interface between the first inner casting and the second outer casting.
  • The composite passive armor protection according to the present invention comprises the features of claim 1.
  • The grooves in the upper plate are made in such a way that their axes coincide with the axes of the geometric solids resting in these grooves. Adventaugosly, the geometric solids are spheres or truncated pyramids with a square base.
  • The geometric solids are ceramic or metallic solids.
  • Owing to its specific construction, the 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. The layer between the plates, filled with the light alloy matrix material, forms an energy gap limiting crack propagation and resulting in dissipation of the kinetic energy of the projectile. The task of the bottom plate is to completely arrest the projectile, the energy of which was reduced on the layer of the geometric solids resting on the grooved upper plate and in the energy gap. Additionally, the grooves in the upper plate prevent movement of the geometric solids in respect of the plate surface. The light alloy matrix 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 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.
  • The composite passive armor protection consists of two parallel plates 1 and 2, except that in the grooves 3 in the upper plate 1 are resting balls 4 embedded in the light alloy matrix 5 up to a level of the two-third of their diameter. Between the plates 1 and 2 there is a separating layer 6 made of a light alloy 5, wherein said layer is forming an energy gap.

Claims (4)

  1. A composite passive armor protection having geometric solids embedded in a matrix, wherein the armor protection comprises parallel non-adjacent plates (1) and (2), wherein the upper plate (1) has grooves (3), in which are resting the geometric solids (4) embedded in a light alloy matrix (5) to a level above one half of their total height leaving a part of the geometric solids (4) protruding, while the space between the parallel plates is a layer of light alloy (6).
  2. The composite passive armor protection of claim 1, wherein the axes of the grooves (3) in the upper plate (1) coincide with the axes of the geometric solids (4) resting in these grooves (3).
  3. The composite passive armor protection of claim 1, wherein said geometric solids (4) are ceramic solids or metallic solids.
  4. The composite passive armor protection of claim 1, wherein said geometric solids (4) are in the shape of spheres or truncated pyramids with a square base.
EP12798897.0A 2011-11-07 2012-10-25 Composite passive armor protection Active EP2776782B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
PL396896A PL222730B1 (en) 2011-11-07 2011-11-07 Passive composite protective armor
PCT/PL2012/000117 WO2013070100A1 (en) 2011-11-07 2012-10-25 Composite passive armor protection

Publications (2)

Publication Number Publication Date
EP2776782A1 EP2776782A1 (en) 2014-09-17
EP2776782B1 true EP2776782B1 (en) 2016-04-06

Family

ID=47326295

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12798897.0A Active EP2776782B1 (en) 2011-11-07 2012-10-25 Composite passive armor protection

Country Status (6)

Country Link
US (1) US20140305296A1 (en)
EP (1) EP2776782B1 (en)
IL (1) IL232350B (en)
PL (1) PL222730B1 (en)
WO (1) WO2013070100A1 (en)
ZA (1) ZA201402979B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9207048B1 (en) * 2010-04-12 2015-12-08 The United States Of America, As Represented By The Secretary Of The Navy Multi-ply heterogeneous armor with viscoelastic layers and hemispherical, conical, and angled laminate strikeface projections
US20160145865A1 (en) * 2014-11-26 2016-05-26 Foster-Miller, Inc. Protective panel
CN109813181B (en) * 2019-03-13 2024-02-09 苏州高甲防护科技有限公司 Hollow hemisphere type stab-resistant protective body structure with clamping groove

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3431818A (en) 1965-04-26 1969-03-11 Aerojet General Co Lightweight protective armor plate
PL129419B1 (en) 1978-05-04 1984-05-31 Zaklady Maszyn I Urzadzen T Un Control system
RU2108434C1 (en) 1991-10-25 1998-04-10 Фирекс Корпорейшн (US) Multilayer explosion-proof panel and method for protection of structure from shock action of explosion
US6112635A (en) * 1996-08-26 2000-09-05 Mofet Etzion Composite armor panel
PL181177B1 (en) 1996-09-10 2001-06-29 Wojskowy Inst Techniczny Uzbro Passive armour
US6679157B2 (en) * 1999-09-30 2004-01-20 Bechtel Bwxt Idaho Llc Lightweight armor system and process for producing the same
US6200664B1 (en) * 1999-11-01 2001-03-13 Ward Figge Explosion barrier
US7543523B2 (en) * 2001-10-01 2009-06-09 Lockheed Martin Corporation Antiballistic armor
US7383762B2 (en) * 2005-04-03 2008-06-10 Michael Cohen Ceramic pellets and composite armor panel containing the same
US8220378B2 (en) * 2005-06-21 2012-07-17 Specialty Products, Inc. Composite armor panel and method of manufacturing same
US20120312150A1 (en) * 2005-06-21 2012-12-13 United States Govemment, as represented by the Secretary of the Navy Body armor of ceramic ball embedded polymer
US8096223B1 (en) * 2008-01-03 2012-01-17 Andrews Mark D Multi-layer composite armor and method
US7833627B1 (en) * 2008-03-27 2010-11-16 The United States Of America As Represented By The Secretary Of The Navy Composite armor having a layered metallic matrix and dually embedded ceramic elements
PL219174B1 (en) * 2011-11-07 2015-03-31 Inst Odlewnictwa Passive composite protective armor
US9395159B2 (en) * 2012-03-01 2016-07-19 Lawrence Livermore National Security, Llc Embedded-monolith armor
US8960262B2 (en) * 2012-04-27 2015-02-24 Spokane Industries Encapsulated arrays with barrier layer covered tiles

Also Published As

Publication number Publication date
PL396896A1 (en) 2013-05-13
PL222730B1 (en) 2016-08-31
WO2013070100A1 (en) 2013-05-16
IL232350B (en) 2018-03-29
IL232350A0 (en) 2014-06-30
EP2776782A1 (en) 2014-09-17
US20140305296A1 (en) 2014-10-16
ZA201402979B (en) 2015-09-30

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