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EP2327949A1 - Verbesserungen im Zusammenhang mit Panzerung - Google Patents

Verbesserungen im Zusammenhang mit Panzerung Download PDF

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Publication number
EP2327949A1
EP2327949A1 EP09252112A EP09252112A EP2327949A1 EP 2327949 A1 EP2327949 A1 EP 2327949A1 EP 09252112 A EP09252112 A EP 09252112A EP 09252112 A EP09252112 A EP 09252112A EP 2327949 A1 EP2327949 A1 EP 2327949A1
Authority
EP
European Patent Office
Prior art keywords
armour
ceramic
portions
ceramic portions
elastomer
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.)
Ceased
Application number
EP09252112A
Other languages
English (en)
French (fr)
Inventor
designation of the inventor has not yet been filed The
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.)
BAE Systems PLC
Original Assignee
BAE Systems PLC
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 BAE Systems PLC filed Critical BAE Systems PLC
Priority to EP09252112A priority Critical patent/EP2327949A1/de
Publication of EP2327949A1 publication Critical patent/EP2327949A1/de
Ceased 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
    • F41H5/02—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
    • F41H5/0492—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 improvements concerning armour.
  • the invention relates to improvements concerning body armour intended to mitigate against injury caused by ballistic projectiles, knife or other spike penetration.
  • Body armour systems for personal protection have been developed in order to provide protection from ballistic projectile impacts in addition to knife and spike penetration.
  • Materials which have been used to provide protection against such threats include metal, ceramics, and synthetic fibres.
  • Many current armour systems which provide protection from high velocity projectiles (such as a 9mm or 7.62mm full metal jacketed bullet NIG level IIIA and III threat projectiles respectively) are based upon a jacket with pouches into which ceramic plates can be inserted. These monolithic ceramic plates cover a large area of the torso, protecting vital organs. The ceramic plate inserted into the jacket is selected with consideration of the expected threat to be defeated, thus providing a tailorable system.
  • spall liners are used behind the plate and in some cases in front of the plate. These spall liners capture fragments of the ceramic plate and projectile produced on interception of a high velocity projectile.
  • monolithic ceramic plates can provide protection against high velocity rounds this protection has a cost.
  • the plates are heavy, bulky and also their rigidity all bears a burden upon the wearer and impede manoeuvrability.
  • ceramics are hard materials with a crystalline or glassy structure and upon impact a large area of the plate can break up limiting its effectiveness in defeating subsequent impacts. Consequently, a new lighter, more flexible armour system with increased comfort to the wearer is required which offers equivalent or enhanced protection to that offered by current monolithic plate armour.
  • armour material comprising a plurality of ceramic portions and polymer material arranged to separate the ceramic portions.
  • armour material in accordance with the present invention is lighter, since there is less ceramic material, and more flexible.
  • the armour can be made in a variety of shapes so as to conform to human physiology, resulting in an increased level of comfort.
  • the tolerance of the armour material to multiple impacts should be increased in comparison to prior known monolithic systems, since one impact should only damage a relatively small number of the ceramic portions.
  • the polymer material may be an elastomer.
  • Use of an elastomer provides enhanced flexibility to the armour, and also increases the efficiency of dissipation of impact energy.
  • the elastomer protects the ceramic portions from damage as a result of general handling of the armour, since small shocks resulting from low energy impacts will be dissipated in the elastomer.
  • the armour material of the present invention is expected to exhibit improved damage tolerance in comparison to prior-known armour systems using monolithic ceramic plates.
  • the ceramic portions are generally tile-shaped.
  • the ceramic portions may be generally pellet-shaped.
  • the ceramic portions are arranged in an imbricated pattern. In this way, it is ensured that, in use, all parts of the body protected by the armour are covered by some ceramic material, since the individual ceramic portions overlap.
  • the polymer material may be provided as a plurality of tile-shaped portions, and the ceramic and material portions may be arranged alternately in a stack-like configuration. Such configurations are convenient to manufacture.
  • the polymer material may be a matrix material in which the ceramic portions are embedded.
  • a plurality of layers of ceramic portions may be provided.
  • the ceramic portions in each layer may be arranged in a generally regular array, in which case the arrays in adjacent layers may be translated relative to one another. This ensures that the armour provides good coverage of ceramic material, to reduce the risk of a projectile penetrating between individual ceramic portions.
  • the polymer material may be a shear-thickening material. Shear thickening materials are thought to provide enhanced protection against knife attack.
  • the ceramic portions are formed from one of silicon carbide, boron carbide, and alumina.
  • the invention extends to body armour comprising clothing provided with a number of pockets into which armour material as described above is inserted. Because of the increased flexibility of the present armour material in comparison to prior known monolithic ceramic armours, and because the present armour material can be made to better conform to the wearer's shape, it is expected that the present armour material will find application primarily in body armour. However, it is also envisaged to apply the armour material in other protective systems. For example, it could be used for vehicle armour.
  • Each ceramic portion 210 is surrounded by the elastomeric matrix material, such that each portion is separated from the others by elastomer.
  • elastomer between the ceramic portions, the performance of the armour against multiple strikes is improved, since the shock transferred to ceramic components adjacent to those in the impacted area is reduced as a result of the behaviour of the elastomeric material.
  • the ceramic portions are protected against low force impacts caused by general handling of the insert by dissipation of the energy from such impacts within the elastomeric matrix material.
  • the insert 200 is encased in a ballistic fabric, such as the polyaramid poly(phenylene diamine terephthalamide) fabric, sold by Du Pont under the registered name of Kevlar ®. Many layers of fabric can be used. On impact of a projectile onto the armour, such fabrics capture fragments of the ceramic portions and fragments of the projectile that are created as a result of the impact.
  • Inserts 200 are fabricated in layers in moulds. Elastomer is poured into the mould, and then a first layer of the ceramic portions is arranged on the elastomer. Then, further elastomer is added onto the first layer of tiles, and a second layer of ceramic portions is arranged on the further elastomer. A third layer is added in a similar manner.
  • the thickness of the elastomer layers is preferably in the range between approximately 0.5 mm to approximately 5 mm, and in the present embodiment is approximately 1 mm.
  • the ceramic portions are, in the present embodiment, 4.4 mm thick 25 mm square tiles fabricated from Sintox FA, a 95% alumina ceramic produced by Morgan Metroc limited.
  • the elastomer is a silicon rubber.
  • FIG 3 is a schematic illustration of an insert 300 for an armoured vest in accordance with a third embodiment of the invention.
  • the second embodiment is similar to the first embodiment except in that the ceramic portions are arranged differently in the elastomeric matrix material. Rather than arranging the tiles in layered arrays, the tiles are arranged vertically in the elastomeric material. By arranging the tiles vertically, additional flexibility is given to the armour insert.
  • Figures 4 and 5 illustrate further inserts 400 and 500 in which further different arrangements are provided for the ceramic portions within the elastomer. In inserts 400 and 500, the portions are arranged at varying angles to the vertical.
  • FIG. 6 is a schematic illustration of an insert 600 for an armoured jacket in accordance with a further embodiment of the invention.
  • Insert 600 comprises a stack of alternate ceramic and elastomer tiles. The tiles are held together by adhesive, and, as in the case of the above-described inserts, provided with spall liner at the front and back of the insert.
  • the ceramic tiles are of alumina
  • the elastomer tiles are of a silicon rubber.
  • FIG. 7 An insert 700 in accordance with a further embodiment of the invention is illustrated schematically in Figure 7 .
  • the insert 700 is similar to insert 600, except in that the tiles are stacked at a slight angle to the vertical. This alternative stack arrangement is intended to mitigate against the risk of penetration between ceramic portions.
  • any feature described in relation to any one embodiment may be used alone, or in combination with other features described, and may also be used in combination with one or more features of any other of the embodiments, or any combination of any other of the embodiments.

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)
  • Professional, Industrial, Or Sporting Protective Garments (AREA)
EP09252112A 2009-09-02 2009-09-02 Verbesserungen im Zusammenhang mit Panzerung Ceased EP2327949A1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP09252112A EP2327949A1 (de) 2009-09-02 2009-09-02 Verbesserungen im Zusammenhang mit Panzerung

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP09252112A EP2327949A1 (de) 2009-09-02 2009-09-02 Verbesserungen im Zusammenhang mit Panzerung

Publications (1)

Publication Number Publication Date
EP2327949A1 true EP2327949A1 (de) 2011-06-01

Family

ID=41540612

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09252112A Ceased EP2327949A1 (de) 2009-09-02 2009-09-02 Verbesserungen im Zusammenhang mit Panzerung

Country Status (1)

Country Link
EP (1) EP2327949A1 (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2492585A (en) * 2011-07-07 2013-01-09 Vestguard Uk Ltd An Armour System
US10286623B2 (en) * 2015-06-15 2019-05-14 Lockheed Martin Corporation Composite materials with tapered reinforcements
US10869513B2 (en) * 2016-02-18 2020-12-22 Deutsche Institute Für Textil-Und Faserforschung Denkendorf Stabbing-proof composite structure, method of manufacturing a composite structure, stabbing-proof insert, and protective textile

Citations (8)

* 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
DE2815582A1 (de) * 1977-12-31 1980-03-06 Harry Apprich Mehrschicht-panzerung, insbesondere aus kleinkoerpern bestehend
EP0028476A1 (de) * 1979-10-31 1981-05-13 Michael Sacks Schutzschilde
US20010015157A1 (en) 1999-04-30 2001-08-23 Neal Murray L. Encapsulated imbricated armor system
US6745661B1 (en) 1999-04-30 2004-06-08 Pinnacle Armor, Inc. Method and apparatus for defeating ballistic projectiles
WO2005103363A2 (en) * 2004-04-23 2005-11-03 The United States Of America, As Represented By The Secretary Of The Navy Armor including a strain rate hardening elastomer
US20070029690A1 (en) 2003-06-25 2007-02-08 Philip Green Energy absorbing blends
US20090114083A1 (en) * 2006-01-23 2009-05-07 Moore Iii Dan T Encapsulated ceramic composite armor

Patent Citations (8)

* 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
DE2815582A1 (de) * 1977-12-31 1980-03-06 Harry Apprich Mehrschicht-panzerung, insbesondere aus kleinkoerpern bestehend
EP0028476A1 (de) * 1979-10-31 1981-05-13 Michael Sacks Schutzschilde
US20010015157A1 (en) 1999-04-30 2001-08-23 Neal Murray L. Encapsulated imbricated armor system
US6745661B1 (en) 1999-04-30 2004-06-08 Pinnacle Armor, Inc. Method and apparatus for defeating ballistic projectiles
US20070029690A1 (en) 2003-06-25 2007-02-08 Philip Green Energy absorbing blends
WO2005103363A2 (en) * 2004-04-23 2005-11-03 The United States Of America, As Represented By The Secretary Of The Navy Armor including a strain rate hardening elastomer
US20090114083A1 (en) * 2006-01-23 2009-05-07 Moore Iii Dan T Encapsulated ceramic composite armor

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2492585A (en) * 2011-07-07 2013-01-09 Vestguard Uk Ltd An Armour System
US10286623B2 (en) * 2015-06-15 2019-05-14 Lockheed Martin Corporation Composite materials with tapered reinforcements
US10869513B2 (en) * 2016-02-18 2020-12-22 Deutsche Institute Für Textil-Und Faserforschung Denkendorf Stabbing-proof composite structure, method of manufacturing a composite structure, stabbing-proof insert, and protective textile

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