EP1705452A1 - Perforiertes Panzerblech - Google Patents

Perforiertes Panzerblech Download PDF

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Publication number
EP1705452A1
EP1705452A1 EP05111676A EP05111676A EP1705452A1 EP 1705452 A1 EP1705452 A1 EP 1705452A1 EP 05111676 A EP05111676 A EP 05111676A EP 05111676 A EP05111676 A EP 05111676A EP 1705452 A1 EP1705452 A1 EP 1705452A1
Authority
EP
European Patent Office
Prior art keywords
plate
armor
auxiliary
holes
main
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.)
Withdrawn
Application number
EP05111676A
Other languages
English (en)
French (fr)
Inventor
Moshe Ravid
Yoav Hirschberg
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.)
Plasan Sasa ACAL
Original Assignee
Plasan Sasa ACAL
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 Plasan Sasa ACAL filed Critical Plasan Sasa ACAL
Publication of EP1705452A1 publication Critical patent/EP1705452A1/de
Withdrawn legal-status Critical Current

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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
    • F41H5/013—Mounting or securing armour plates
    • 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
    • F41H5/023—Armour plate, or auxiliary armour plate mounted at a distance of the main armour plate, having cavities at its outer impact surface, or holes, for deflecting the projectile
    • 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
    • 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

Definitions

  • This invention relates to multi-layer ballistic armor and, particularly, to armor plates suitable for use as add-on (exterior) armor for military vehicles.
  • Perforated or slit armor plates are in use for many years in armor systems where they are installed at some stand-off distance from the vehicle's basic armor.
  • the use of those plates is mainly to effectively break an incoming projectile or at least to divert it from its incident trajectory and thus substantially reduce its residual penetration capability through the basic armor.
  • the total weight of such armor system is considerably less than the weight of a basic armor with the same antiballistic capability.
  • the holes or slits are designed to interact with the characteristic diameter of the threat (projectile caliber), and the performance effectiveness of such armor under impact is dominated by the plate material and thickness.
  • US 5,014,593 discloses perforated plate armor including outer and inner perforated steel plates and which have associated patterns of holes.
  • the plates are spaced with respect to each other and with respect to the object to be protected.
  • the patterns of holes of the perforated steel plates are offset with respect to each other to prevent straight line penetration.
  • An inner backing plate is provided to stop any particles that might penetrate both perforated steel plates. Fillers and connectors space the outer and inner perforated steel plates and the backing plate with respect to each other.
  • US 5,221,807 discloses a ballistic armor with front and rear layers, which are spaced from each other by a spacing layer.
  • the front layer is made of ceramic material formed with blind holes, and it is designed to score impacting projectiles before they strike the rear layer, which functions as a main armor layer.
  • EP 0 699 887 describes an antiballistic structure comprising a front stand-off panel including an elastically deformable laminate matrix and a plurality of rigid elements supported therein.
  • the rigid elements are means for absorbing the energy of the incident projectiles and for destabilizing them.
  • the front panel is mounted on a deformable separator layer which is fixed on a main armor plate.
  • US 4,398,446 discloses add-on armor arrangements designed for the attachment to a side wall of a military vehicle to provide different levels of ballistic protection.
  • the difference in the arrangements is mainly in the number of armor layers and their location relative to the vehicle's side wall.
  • it is mounted either directly or close to the vehicle's side wall or at a location spaced therefrom by spacers.
  • two armor layers one of them is mounted directly or close to the vehicle's side wall while the other is mounted at a location spaced therefrom.
  • each armor layer consists of tiles whose edges abut each other to define a substantially uninterrupted armor surface.
  • EP 1 128 154 describes a ballistic armor panel for attaching to an object, the panel comprising a carrying board made of a hard material such as steel and formed with a plurality of adjoining through-going holes. Each hole accommodates a body made of a hard material. The panel is mounted face to face with the protected object.
  • the system comprises a main armor plate and an auxiliary armor plate mounted in front of the main armor plate at a distance L therefrom.
  • the auxiliary plate is perforated with through holes of characteristic diameter D, D being larger than D S up to about 1.2D B .
  • At least one hard-material body is fixed in each of the holes, so as to provide at least destabilization of impacting projectiles S or B capable of free passage through an unobstructed hole of diameter D when striking close to the hole center.
  • the space between the auxiliary armor plate and the main armor plate may be free or at least partially filled with a non-ballistic material, for example a honeycomb structure.
  • the auxiliary armor plate may be connected to the main armor plate by a plurality of metallic bolts, pins or brackets.
  • the system may be constructed of panels comprising the main armor plate and the auxiliary armor plate fixed at the distance L therefrom, the panels being adapted for mounting on the structure.
  • an auxiliary armor plate for use in the above system of armor plates, which auxiliary plate may be made of ballistic steel.
  • the holes in the auxiliary plate are preferably disposed with center to center spacing from 1.2D to 1.9D, preferably in a regular array.
  • the hard-material bodies may be made of ceramics and may be fixed in the holes by resin or metal.
  • the auxiliary plate may further comprise at least one front and/or rear layer of material bonded thereto so as to fix the hard-material bodies in the holes.
  • the material may be fiberglass, aramid fabric, metallic sheet or other fiber fabric in resin matrix.
  • an add-on armor kit comprising the above auxiliary armor plate, an instruction for use thereof in a system of armor plates, and optionally, means for mounting the auxiliary armor plate on the protected structure.
  • the invention may be applied to various types of military vehicles and may provide combined ballistic protection against projectiles of different diameters ranging, for example from 7.62 mm, 0.5" (12.7 mm), to 14.5 mm or even to 20 mm.
  • the armor having the main and auxiliary plates according to the present invention may have a lighter weight than the weight it would need to have in order to provide the same level of ballistic protection, if the armor consisted only of one plate or if the auxiliary plate had only through openings.
  • the auxiliary armor plate of the present invention may allow a smaller distance to the basic structure, than the distance it would need to have for the same level of ballistic protection, with single plate armor of the same weight (perforated or not).
  • An armor system 10 schematically shown in Figs. 1 and 2 is an example of ballistic armor of the present invention designed for ballistic protection of a basic structure, e.g. side wall 12 of a vehicle, against two kinds of ballistic threats, for example, large caliber bullets B and smaller caliber bullets S.
  • the armor 10 comprises a main armor plate 14 and an auxiliary armor plate 16 located in front of the main armor plate 14.
  • the plates 14 and 16 are attached to the side wall 12 by attachment means such as bolts 18 as shown in Fig. 1.
  • the main armor plate 14 may be attached to the side wall 12 by one attachment means
  • the auxiliary plate 16 may be attached to the main plate 14 or to the side wall by another attachment means.
  • the attachment means are designed to keep the plates at a predetermined fixed distance (stand-off) from each other.
  • the main armor plate 14 is designed to stop alone, or together with the side wall 12 but without the auxiliary plate 16, projectiles of relatively small diameter D S and penetration capability (lower level threats) such as 7.62 mm small arm bullets.
  • the main plate may be a composite armor plate, for example comprising front layer 20 and a rear, backing layer 22 bonded to the front layer.
  • the front layer 20 may comprise cylindrical pellets made of ceramics, for example alumina, held by synthetic resin.
  • the rear layer 22 may be made of aluminum sheet, fiberglass, aramid fiber material such as KevlarTM, another fabric in resin, or a combination thereof.
  • the side wall may be integral with the main armor plate or may be considered a main armor plate by itself, as a component of the armor system described herein.
  • the auxiliary plate 16 comprises a perforated plate which may be made of steel, titanium or aluminum and their alloys, or of carbon fibers and the likes in hard resin matrix.
  • the perforated plate is formed with through holes 19 of diameter D, spaced from each other by a distance and arranged in a regular pattern.
  • the perforated plate with the holes 19 may be designed to deflect and shatter or at least destabilize by itself projectiles with relatively large diameter DB which cannot be stopped by the main plate 14 alone or together with the side wall 12.
  • projectiles may be 0.5" to 14.5 mm machine-gun armor piercing bullets.
  • the diameter D of the holes in this case is smaller than DB but large enough to be felt by a projectile of diameter D B , when impacting the hole.
  • the range of D then may be between D S and D B , preferably 1.1D S ⁇ D ⁇ 0.9D B .
  • the total area of the holes 19 is preferably between 40% and 50% of the area of the perforated plate.
  • holes of diameter D 11 mm may be used (in 8 mm thick plate), arranged in staggered rows, with centers disposed at 16 mm from each other.
  • a projectile B impacts the perforated plate and, while penetrating the plate, is deflected (its path is deviated from the normal flight direction thereof) and initially shattered or at least destabilized.
  • the destabilized and deflected projectile or parts thereof then impact the front layer 20 of the main plate 14, which further shatters the projectile or its parts into small fragments.
  • the backing layer 22 absorbs and dissipates kinetic energy of the fragments on the protected side wall 12, at which the projectile is finally stopped.
  • the perforated plate alone may be pierced by low caliber threats, such as the bullet of diameter D S , passing through the holes 19 when D > D S without any influence to their trajectory.
  • a 7.62 mm bullet may pass easily through 11 mm dia holes.
  • the main armor plate 14 will be usually capable to stop such low-level threat, sometimes a small-caliber threat may be an overmatch to the main armor plate.
  • Such threat may be special armor-piercing munitions with WC (Tungsten Carbide) core, such as 7.62x51 mm API(WC)FFV, NAMMO, etc.
  • the present invention provides hard bodies of characteristic diameter D H such as ceramic pellets 28 which are placed in the holes 19, as shown in Fig.2, to augment the perforated plate and obtain the auxiliary plate 16.
  • the bodies may be bonded in the holes, and the auxiliary plate may be covered at one or both sides by a thin layer of laminated fabrics 30 such as fiberglass, aramid, carbon or other fibers in hard resin etc. and/or metallic sheet such as aluminum sheet.
  • the low-caliber threat S will impact either the auxiliary plate 16 or one of hard bodies 28 and will be shattered, or at least destabilized, losing great deal of its penetrating capability.
  • the operation of the armor 10 against the large-caliber projectile B will be at least the same as the perforated plate without the hard bodies, or even may have improved performance.
  • the diameter D H of the hard bodies is preferably not less than the difference between D and D S , i.e. not less than D-D S in order to avoid penetration of low-caliber threat S if the hard body is bonded off-center.
  • the usage of larger holes allows further reducing the weight of the auxiliary plate, especially if made of steel, as the ceramic bodies have lower specific weight than steel.
  • the perforated plate for the auxiliary plate 16 may be made of metallic or non metallic materials such as ballistic steel of various grades, titanium, aluminum alloys, hard fibrous material plates or laminates etc, by drilling, milling, punching, laser or water jet cut, etc.
  • the armor 10 may be produced as a module with the auxiliary plate 16 fixedly attached to the main plate.
  • the module may be provided with means for mounting on the vehicle side wall 12, which may be protected by a number of such modules.
  • the auxiliary plate may be produced separately as add-on plate and mounted at a vehicle manufacturer facility or at an armor-specialized workshop.
  • the auxiliary plate may be offered in a kit with means for mounting and instructions for mounting on a vehicle with given basic armor and required ballistic protection level.
  • the holes in the auxiliary plate may be of non-circular form but polygonal, elliptic or extended like slits.
  • the space between the two plates may be empty or filled by a spacing layer of non-ballistic material such as wood, plastic or light metal layer which may be formed as porous foam or honeycomb, etc.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
  • Laminated Bodies (AREA)
EP05111676A 2005-03-23 2005-12-05 Perforiertes Panzerblech Withdrawn EP1705452A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IL16761505 2005-03-23

Publications (1)

Publication Number Publication Date
EP1705452A1 true EP1705452A1 (de) 2006-09-27

Family

ID=36587155

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05111676A Withdrawn EP1705452A1 (de) 2005-03-23 2005-12-05 Perforiertes Panzerblech

Country Status (2)

Country Link
US (1) US20060213360A1 (de)
EP (1) EP1705452A1 (de)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITFI20090130A1 (it) * 2009-06-17 2010-12-18 Ind Bitossi Spa Componenti per corazze ceramiche.
GB2471702A (en) * 2009-07-08 2011-01-12 Frec Technology As An antiballistic armour plate
US8375841B2 (en) 2009-06-17 2013-02-19 Industrie Bitossi, S.p.A. Armor tile
DE102012100573A1 (de) * 2012-01-24 2013-07-25 Krauss-Maffei Wegmann Gmbh & Co. Kg Schutzelement zum Schutz gegen ballistische Geschosse und militärisches Fahrzeug
US20140007756A1 (en) * 2011-07-16 2014-01-09 Kevin Mark Diaz Green Energy Mine Defeat System
EP2533006A3 (de) * 2011-06-06 2015-03-18 Plasan Sasa Ltd. Panzerungselement und Panzerungsmodul damit
PL444066A1 (pl) * 2023-03-10 2024-09-16 Sieć Badawcza Łukasiewicz - Górnośląski Instytut Technologiczny Sposób wykonania pancerza ze stalowych płyt perforowanych

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US7866248B2 (en) 2006-01-23 2011-01-11 Intellectual Property Holdings, Llc Encapsulated ceramic composite armor
US8186262B2 (en) * 2006-05-01 2012-05-29 The University of Maryland at Baltimore County Methods and structures for sandwich panels with improved resistance to ballistic penetration
US8689671B2 (en) 2006-09-29 2014-04-08 Federal-Mogul World Wide, Inc. Lightweight armor and methods of making
BRPI0817615A2 (pt) * 2007-09-28 2015-03-31 Gen Dynamics Land Systems Inc Aparelho, métodos e sistemas para aperfeiçoar proteção de blindagem leve
WO2009096956A1 (en) * 2008-01-30 2009-08-06 Bell Helicopter Textron Inc. Protective armor structure
FR2932558B1 (fr) * 2008-06-12 2010-06-11 Nexter Systems Porte blindee pour un habitacle.
US20120174757A1 (en) * 2008-07-16 2012-07-12 Lawrence Technological University Composite Armor Structure
US20110113951A1 (en) * 2008-11-14 2011-05-19 Daley Kevin T Protection of personnel and articles from impact of ballistic devices
IL196191A (en) 2008-12-25 2013-09-30 Moshe Ravid Armor board
US9121674B2 (en) 2009-05-13 2015-09-01 Milmark Technologies, Inc. Armor
US9140524B2 (en) * 2010-02-10 2015-09-22 International Composites Technologies, Inc. Multi-layered ballistics armor
WO2012015510A2 (en) * 2010-05-06 2012-02-02 Warwick Mills, Inc. Suicide bomber blast threat mitigation system
AU2012267563B2 (en) * 2011-06-08 2017-05-25 American Technical Coatings, Inc. Enhanced ballistic protective system
US9696122B2 (en) 2011-06-30 2017-07-04 Imi Systems Ltd. Antiballistic article and method of producing same
IL213865A (en) * 2011-06-30 2017-02-28 Bergman Ron Anti-ballistic product and method of manufacture
WO2013077927A2 (en) * 2011-09-09 2013-05-30 Bae Systems Land & Armaments L.P. Common mounting provisions for an armored vehicle
US8833232B1 (en) * 2011-11-30 2014-09-16 Drs Sustainment Systems, Inc. Operational control logic for harmonized turret with gimbaled sub-systems
US9038332B1 (en) * 2012-11-08 2015-05-26 The United States Of America As Represented By The Secretary Of The Navy Explosive blast shield for buildings
BR112015014460A2 (pt) * 2012-12-18 2017-07-11 B Max S R L dispositivo de proteção e processo de fabricação de dispositivo de proteção
IL230775B (en) 2014-02-02 2018-12-31 Imi Systems Ltd Pre-stressed curved ceramic panels/tiles and a method for their production
WO2015179013A2 (en) * 2014-03-18 2015-11-26 American Technical Coatings, Inc. Lightweight enhanced ballistic armor system
IL232110A (en) * 2014-04-13 2015-11-30 Plasan Sasa Ltd A connector for protection
PL3195334T3 (pl) 2014-09-17 2018-12-31 Siemens Aktiengesellschaft Urządzenie elektryczne odporne na ostrzał
US9482494B1 (en) * 2015-06-11 2016-11-01 Southern States, Llc Bullet resistant shield for electric power equipment
CN108099709A (zh) * 2016-11-25 2018-06-01 扬州恒新座椅有限公司 防雷爆减震地板和侧墙
TR202003526A1 (tr) * 2020-03-06 2021-09-21 Secant Teknoloji Gelistirme Sanayi Ve Ticaret Anonim Sirketi Zirhli araçlar i̇çi̇n i̇lave zirh si̇stemi̇
DE102021106651A1 (de) 2021-03-18 2022-09-22 Rheinmetall Landsysteme Gmbh Geschützte Komponente, geschütztes Fahrzeug und Verfahren
US11754377B1 (en) * 2021-08-05 2023-09-12 Graham Holloway Apparatus for shielding a structure from bullets and method of use
DE102022102991A1 (de) 2022-02-09 2023-08-10 Krauss-Maffei Wegmann Gmbh & Co. Kg Montagevorrichtung

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EP0699887A2 (de) 1994-09-02 1996-03-06 A.F.H. Investment Ltd. Beschussfeste Verbundpanzerplatte
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EP1400775A1 (de) 2002-09-19 2004-03-24 Michael Cohen Keramikkörper und ballistische Panzerplatte die derartige Körper enthält

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DE2525738A1 (de) * 1975-06-10 1976-12-23 Danzer Josef Helmut Bohrsicheres plattenelement
US4398446A (en) 1980-07-14 1983-08-16 The United States Of America As Represented By The Secretary Of The Army Adjustable combat vehicle armor
DE3507216A1 (de) * 1985-03-01 1986-09-04 Rheinmetall GmbH, 4000 Düsseldorf Verbundplatte
EP0213268A1 (de) * 1985-07-31 1987-03-11 The State Of Israel Ministry Of Defence Israel Military Industries Bodenbewegungsfahrzeug mit gepanzerter Fahrerkabine
US4716810A (en) * 1986-02-24 1988-01-05 Detroit Punch & Retainer Corporation Self-contained armor assembly
US4835033A (en) * 1988-03-01 1989-05-30 General Dynamics Land Systems, Inc. Armor plate having triangular holes
US5014593A (en) 1988-03-01 1991-05-14 General Dynamics Land Systems, Inc. Perforated plate armor
US5221807A (en) 1989-12-06 1993-06-22 Societe Europeenne De Propulsion Ballistic protection armor
US5007326A (en) * 1990-01-16 1991-04-16 The United States Of America As Represented By The Secretary Of The Army Cast single plate P900 armor
EP0699887A2 (de) 1994-09-02 1996-03-06 A.F.H. Investment Ltd. Beschussfeste Verbundpanzerplatte
EP1128154A2 (de) 2000-02-21 2001-08-29 The State Of Israel Ministry Of Defence Armament Development Authority, Rafael Ballistische Panzerplatte
EP1400775A1 (de) 2002-09-19 2004-03-24 Michael Cohen Keramikkörper und ballistische Panzerplatte die derartige Körper enthält

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITFI20090130A1 (it) * 2009-06-17 2010-12-18 Ind Bitossi Spa Componenti per corazze ceramiche.
WO2010146106A1 (en) * 2009-06-17 2010-12-23 Industrie Bitossi S.P.A. Ceramic armor component
US8375841B2 (en) 2009-06-17 2013-02-19 Industrie Bitossi, S.p.A. Armor tile
GB2471702A (en) * 2009-07-08 2011-01-12 Frec Technology As An antiballistic armour plate
GB2471702B (en) * 2009-07-08 2013-05-08 Frec Technology As An antiballistic armour plate and a method of manufacturing the same
EP2533006A3 (de) * 2011-06-06 2015-03-18 Plasan Sasa Ltd. Panzerungselement und Panzerungsmodul damit
US20140007756A1 (en) * 2011-07-16 2014-01-09 Kevin Mark Diaz Green Energy Mine Defeat System
US9234725B2 (en) * 2011-07-16 2016-01-12 Kevin Mark Diaz Green energy mine defeat system
DE102012100573A1 (de) * 2012-01-24 2013-07-25 Krauss-Maffei Wegmann Gmbh & Co. Kg Schutzelement zum Schutz gegen ballistische Geschosse und militärisches Fahrzeug
EP2807444B1 (de) 2012-01-24 2016-11-30 Krauss-Maffei Wegmann GmbH & Co. KG Schutzelement zum schutz gegen ballistische geschosse und militärisches fahrzeug
PL444066A1 (pl) * 2023-03-10 2024-09-16 Sieć Badawcza Łukasiewicz - Górnośląski Instytut Technologiczny Sposób wykonania pancerza ze stalowych płyt perforowanych

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