EP2776779A1 - Composite passive armor protection - Google Patents

Composite passive armor protection

Info

Publication number
EP2776779A1
EP2776779A1 EP12798894.7A EP12798894A EP2776779A1 EP 2776779 A1 EP2776779 A1 EP 2776779A1 EP 12798894 A EP12798894 A EP 12798894A EP 2776779 A1 EP2776779 A1 EP 2776779A1
Authority
EP
European Patent Office
Prior art keywords
solids
armor protection
holes
geometric solids
composite passive
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.)
Granted
Application number
EP12798894.7A
Other languages
German (de)
French (fr)
Other versions
EP2776779B1 (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
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
Priority to PL396893A priority Critical patent/PL219174B1/en
Application filed by INSTYTUT ODLEWNICTWA filed Critical INSTYTUT ODLEWNICTWA
Priority to PCT/PL2012/000114 priority patent/WO2013070097A1/en
Publication of EP2776779A1 publication Critical patent/EP2776779A1/en
Application granted granted Critical
Publication of EP2776779B1 publication Critical patent/EP2776779B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41WEAPONS
    • F41HARMOUR; ARMOURED TURRETS; ARMOURED OR ARMED VEHICLES; MEANS OF ATTACK OR DEFENCE, e.g. CAMOUFLAGE, IN GENERAL
    • F41H5/00Armour; Armour plates
    • F41H5/02Plate construction
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41WEAPONS
    • F41HARMOUR; ARMOURED TURRETS; ARMOURED OR ARMED VEHICLES; MEANS OF ATTACK OR DEFENCE, e.g. CAMOUFLAGE, IN GENERAL
    • F41H5/00Armour; Armour plates
    • F41H5/02Plate construction
    • F41H5/04Plate construction composed of more than one layer
    • F41H5/0492Layered 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

Abstract

A composite passive armor protection comprises a structure, embedded in the light alloy matrix (1), wherein said structure is made of geometric solids (2), resting on brackets (3), passing through the holes in plate (4), wherein said brackets (3) have through-holes located at a height above and below the plate (4), wherein in said through-holes are secured rods (5) in such a way that they form a grid, wherein the geometric solids (2) are embedded in the light alloy matrix (1), preferably to a level above one half of their diameter, and wherein the rods (5) are preferably fixed in such a way that their longitudinal axes coincide with the axes of the geometric solids (2).

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.

Known from the DE1578324 description armor consists of a non- metallic matrix, in which totally embedded are a plate and, arranged above said plate, the energy-absorbing layers, comprising elements which have the shape of plates or of cylindrical solids arranged side by side or at certain distances in the layers. 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.

A composite passive armor protection according to the present invention comprises a structure, embedded in the light alloy matrix, wherein said structure is made of geometric solids resting on brackets passing through the holes in the plate, wherein said brackets have through-holes located at a height above and below the plate, wherein in said through-holes are secured rods in such a way that they form a grid, wherein the geometric solids are embedded in the light alloy matrix preferably to a level above one half of their total height, and wherein, the rods are preferably fixed in such a way that their longitudinal axes coincide with the axes of the geometric solids.

Preferably, the geometric solids are spheres or truncated pyramids with a square base. The geometric solids are ceramic solids or metallic solids. The rods are preferably made of high-strength stainless steel.

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. 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 brackets passing through the holes in the plate and brackets with fixed rods 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.

The composite passive armor protection comprises a structure, embedded in the light alloy matrix 1 , wherein said structure is made of ceramic balls 2, resting on brackets 3, passing through the holes in plate 4, wherein said brackets 3 have through-holes located at a height above and below the plate 4, wherein in said through-holes are secured rods 5 in such a way that they form a rectangular grid. The ceramic balls 2 are embedded in the light alloy matrix 1 to a level above one half of their diameter. The rods 5 made of high-strength stainless steel are fixed coaxially with the ceramic balls 2.

Claims

Patent claims
1. A composite passive armor protection having a structure comprised of the geometric solids, said structure being embedded in a matrix, characterized in that it made of a structure embedded in the light alloy matrix 1 , wherein said structure is made of the geometric solids 2, resting on brackets 3, passing through the holes in plate 4, wherein said brackets 3 have through-holes located at a height above and below the plate 4, wherein in said through-holes are secured rods 5 in such a way that they form a grid, wherein said geometric solids 2 are embedded in the light alloy matrix 1 , preferably to a level above one half of their total height, and wherein the rods 5 are preferably fixed in such a way that their longitudinal axes coincide with the axes of the geometric solids 2.
2. The composite passive armor protection of claim 1 , wherein said geometric solids 2 are ceramic solids.
3. The composite passive armor protection of claim 1 , wherein said geometric solids 2 are metallic solids.
4. The composite passive armor protection of claim 1 , wherein said geometric solids are in the shape of spheres or truncated pyramids with a square base.
5. The composite passive armor protection of claim 1 , wherein said rods 5 are made of high-strength stainless steel.
EP12798894.7A 2011-11-07 2012-10-25 Composite passive armor protection Active EP2776779B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PL396893A PL219174B1 (en) 2011-11-07 2011-11-07 Passive composite protective armor
PCT/PL2012/000114 WO2013070097A1 (en) 2011-11-07 2012-10-25 Composite passive armor protection

Publications (2)

Publication Number Publication Date
EP2776779A1 true EP2776779A1 (en) 2014-09-17
EP2776779B1 EP2776779B1 (en) 2016-04-06

Family

ID=47326292

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12798894.7A Active EP2776779B1 (en) 2011-11-07 2012-10-25 Composite passive armor protection

Country Status (6)

Country Link
US (1) US20140305295A1 (en)
EP (1) EP2776779B1 (en)
IL (1) IL232347A (en)
PL (1) PL219174B1 (en)
WO (1) WO2013070097A1 (en)
ZA (1) ZA201402980B (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
PL222730B1 (en) * 2011-11-07 2016-08-31 Inst Odlewnictwa Passive composite protective armor
US20160145865A1 (en) * 2014-11-26 2016-05-26 Foster-Miller, Inc. Protective panel

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US3431818A (en) 1965-04-26 1969-03-11 Aerojet General Co Lightweight protective armor plate
FR2419498B1 (en) * 1978-03-08 1980-08-22 Merlin Gerin
PL129419B1 (en) 1978-05-04 1984-05-31 Zaklady Maszyn I Urzadzen T Un Control system
AU668532B2 (en) 1991-10-25 1996-05-09 Firexx Corporation Anti-explosion pads and their method of use
PL181177B1 (en) 1996-09-10 2001-06-29 Wojskowy Inst Techniczny Uzbro Passive armour
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
US7562613B2 (en) * 2003-12-19 2009-07-21 The Cooper Union For The Advancement Of Science And Art Protective structure and protective system
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
US20060059841A1 (en) * 2004-08-18 2006-03-23 Dayton Superior Corporation Of 7777 Washington Village Drive Reinforced concrete structure, rebar end anchor therefor and method of manufacturing
US8220378B2 (en) * 2005-06-21 2012-07-17 Specialty Products, Inc. Composite armor panel and method of manufacturing same
US20090031889A1 (en) * 2007-05-18 2009-02-05 Saul W Venner Complex Geometry Composite Armor for Military Applications
US20110107904A1 (en) * 2007-08-15 2011-05-12 University Of Virginia Patent Foundation Synergistically-Layered Armor Systems and Methods for Producing Layers Thereof
US20120291615A1 (en) * 2008-02-01 2012-11-22 Tatarliov Kenneth C Bullet Resistant Panel Member
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
CA2776632C (en) * 2011-05-11 2019-08-13 Composite Technologies Corporation Load transfer device
US9395159B2 (en) * 2012-03-01 2016-07-19 Lawrence Livermore National Security, Llc Embedded-monolith armor
US8967230B2 (en) * 2012-04-27 2015-03-03 Spokane Industries Seam protected encapsulated array

Non-Patent Citations (1)

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Title
See references of WO2013070097A1 *

Also Published As

Publication number Publication date
ZA201402980B (en) 2015-09-30
EP2776779B1 (en) 2016-04-06
IL232347D0 (en) 2014-06-30
IL232347A (en) 2016-12-29
US20140305295A1 (en) 2014-10-16
PL396893A1 (en) 2013-05-13
PL219174B1 (en) 2015-03-31
WO2013070097A1 (en) 2013-05-16

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