EP1878993A2 - Keramik- oder Metal-Plattenpanzer - Google Patents
Keramik- oder Metal-Plattenpanzer Download PDFInfo
- Publication number
- EP1878993A2 EP1878993A2 EP07252773A EP07252773A EP1878993A2 EP 1878993 A2 EP1878993 A2 EP 1878993A2 EP 07252773 A EP07252773 A EP 07252773A EP 07252773 A EP07252773 A EP 07252773A EP 1878993 A2 EP1878993 A2 EP 1878993A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- tile
- armour
- tiles
- slots
- slot
- 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- Withdrawn
Links
- 239000000919 ceramic Substances 0.000 title abstract description 20
- 239000002184 metal Substances 0.000 title 1
- 238000000465 moulding Methods 0.000 claims abstract description 16
- 239000000463 material Substances 0.000 claims abstract description 14
- 239000006096 absorbing agent Substances 0.000 claims description 7
- 239000002952 polymeric resin Substances 0.000 claims description 3
- 229920003002 synthetic resin Polymers 0.000 claims description 3
- 229910010293 ceramic material Inorganic materials 0.000 claims description 2
- 239000002657 fibrous material Substances 0.000 claims description 2
- 239000011156 metal matrix composite Substances 0.000 claims description 2
- 230000007704 transition Effects 0.000 claims description 2
- 230000001419 dependent effect Effects 0.000 claims 1
- 230000002787 reinforcement Effects 0.000 description 6
- 239000000835 fiber Substances 0.000 description 4
- 230000000149 penetrating effect Effects 0.000 description 4
- 150000001875 compounds Chemical class 0.000 description 3
- 239000012634 fragment Substances 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000003491 array Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000001902 propagating effect Effects 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
Images
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
-
- 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
-
- 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
-
- 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
-
- 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
-
- 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 armour, for example ceramic armour formed from a plurality of tiles.
- Armour-piercing bullets normally consist of a very hard penetrating core covered in a softer jacket that engages with the rifling of the gun during firing and provides an aerodynamic outer shape for low drag and high accuracy.
- the penetrating core sometimes simply referred to as the penetrator or the core, is normally designed with a sharp point so as to focus the kinetic energy of the projectile on a very small area of the front face of the armour during impact.
- Known armour seeks to dissipate this kinetic energy with minimum armour damage and without allowing penetration of the threat projectile or dislodged armour fragments through the armour system into a protected region.
- Ceramic armour is often used in view of its reduced weight as compared to metallic armour.
- Figure 1 shows known ceramic armour constructed in two layers in accordance with the "disturber-absorber" principle, whereby a hard front face 11 is used to “disturb” the normal operation of an armour-piercing bullet 12 and a backing layer 13 of composite materials and/or air gaps and/or metallic materials is used to "absorb" the residual effects of the disturbed core and any fragments dislodged from the disturber layer.
- the ceramic disturber layer 11 is selected to have high hardness when compared to that of an armour-piercing core. This enables it to blunt and/or fracture the core during impact, significantly reducing its penetrating ability.
- a conoid 14 of fractured ceramic sometimes termed a "conoid of rubble", also forms in the ceramic layer 1 with the point of impact at its apex. The formation of this conoid absorbs kinetic energy from the core, following which the conoid 14 itself tends to dissipate the core's remaining kinetic energy over a larger area as it tries to continue forward, decelerating as it works its way through the "rubble".
- Ceramic armour such as that shown in Figure 1 is normally in the form of an array of close-fitting tiles which are polygonal, e.g. square or hexagonal.
- An impact on a tile will cause local damage around the impact point as well as initiating cracks which can propagate over long distances as far as the edge of the tile, but not into adjacent tiles. These cracks may result in sections of the ceramic layer becoming loose and falling away, or reduce the tile's ability to withstand further bullet strikes due to pre-existing damage. Therefore, for multi-hit capability the surface area of any one tile should be small to limit the extent of surface damage caused by the impact of a single projectile.
- minimum tile size is normally governed by the need to spread the kinetic energy of the bullet over a large area of the absorber layer.
- large arrays of small tiles can be very expensive in terms of the time taken to lay out and properly align the tile array, when compared to the application of small numbers of large tiles.
- the invention provides a hard faced armour tile comprising an array of sub-tiles formed by narrow slots.
- the slots tend to be in the path of and terminate any cracks propagating from an impact point and thus increase the multi-hit performance compared to traditional large ceramic tiles.
- the sub-tiles may be square or hexagonal or of more than one shape.
- the slots can be straight and elongate, L-shaped or cross-shaped.
- the tile can be curved in order to protect a region or object of a given shape.
- a chamfer or curved transition zone can be formed between an internal surface of each slot and the front surface of the tile.
- the slot may be asymmetric with the chamfer on one side of the slot at a different angle to the other side.
- Such chamfers or zones can form a groove around each slot, and in an embodiment of the invention the grooves intersect with each other.
- slots and or/grooves can be formed on a rear surface as well as a front surface of the hard layer.
- the tile may be of ceramic material or another hard material such as a metal matrix composite material.
- the invention also provides armour comprising a plurality of tiles as defined above in layers and a moulding material holding the tiles together.
- the moulding material flows through the slots and, where the grooves are provided, along the grooves from one slot to another.
- the moulding material may be metallic or comprise a polymeric resin.
- the tiles are stitched together using fibrous material passing through the slots.
- An absorber layer may be provided or where the thickness of the moulding is sufficient the armour may function as a disturber-absorber system by itself.
- FIG 1 shows the known armour already discussed
- Figures 2a and 2b are a front view and a cut-away view respectively of a tile according to the invention.
- Figures 3a and 3b are a front view and a cut-away view respectively of an alternative tile according to the invention.
- Figures 4a and 4b are a front view and a perspective view respectively of another alternative tile
- Figures 5a and 5b are a front view and a cut-away view respectively of yet another alternative tile
- Figures 6a and 6b are a perspective view and a sectional view respectively of a curved tile according to the invention.
- Figure 7 shows a tile with a chamfered slot
- Figure 8 shows a tile with a curved-edge slot
- Figures 9a and 9b are a front view and a perspective view respectively of another alternative tile according to the invention.
- Figures 10a to 10c show symmetrical and asymmetrical broken edge slot geometries
- Figures 11a to 11c are a front view and two perspective views respectively of a tile according to the invention.
- Figures 12a to 12c are a front view and two perspective views respectively of another tile according to the invention.
- Figure 13 shows two tiles, each according to Figures 12a to 12c, with an added reinforcement.
- Figure 2a shows a ceramic tile having a plurality of through slots 1 arranged so as to divide the tile into square sub-tiles 2 with half the slots horizontal and half vertical.
- Figure 2b is a view of the tile cut-away along line A-A.
- Figure 3a shows an alternative tile in which the majority of the slots 3 are L-shaped, slots 1 ' at the edge of the array being straight.
- Figure 3b is a view of the tile cut-away along line B-B.
- Figures 4a and 4b show a tile formed from hexagonal sub-tiles 4, defined by straight slots 5. A plurality of such tiles will tessellate when fitted together.
- Figure 5a shows an embodiment of tile comprising an array of cross-shaped slots 6.
- Figure 5b is a view of the tile cut-away along line C-C.
- the tile design may need to adapt in terms of edge profile or surface curvature to match the geometry of the three-dimensional region it is intended to protect and the approach direction of the threat bullets.
- Figures 6a and 6b show a curved tile.
- Figure 7 shows an embodiment of slot which is designed to reduce the potential weakness caused by the truncation of the conoid of rubble and to destabilise or tilt the bullet core.
- the edge of the slot is chamfered at 7.
- the projectile 8 impacts a surface at an angle less than 90° to the projectile axis. This causes a partial ricochet or tilting due to the off-axis impact force on the nose of the projectile.
- Figure 8 shows a curved-edge slot which achieves the same effect.
- Figures 9a and 9b show a tile having the slots of Figure 7.
- the chamfers 7 form grooves surrounding the slots 5'.
- Figure 10a shows that when the axis of the bullet 8 precisely aligns with the axis of the slot 5', the bullet 8 is equally supported whilst aiming directly at the ceramic-free weak spot between the sub-tiles.
- the chamfer 7' can be made asymmetric as shown in Figures 10b and 10c.
- Figures 11a to 11c show a tile in which grooves 7' around the slot intersect above the fused regions between the sub-tiles. This controls the location of fractures caused by bending moments induced across the tile. To fully control the location of any bending-moment-induced-fractures, the intersecting grooves 7' are also formed below the slots. Any bending-moment-induced-through-thickness fractures will then tend to occur in the fused regions between sub-tiles. In addition, cracks tending to propagate from an impacted sub-tile directly through a fused region into an adjacent sub-tile will be diverted. On meeting a groove the crack will tend to grow along the line of the groove until it meets with the end of a slot.
- the grooves 7, 7' enable the moulding material to flow easily between the slots, thereby increasing the integrity of the moulded wrapping, even with a thin or partial moulded covering at front and rear. Producing such a package in a moulding with a substantial layer of resin and/ or reinforcement on the front and rear can further enhance the integrity of the overall package.
- the moulding can be produced using any feasible moulding technique with a metallic or polymeric resin system, with either continuous, particulate or chopped fibre reinforcement of a variety of types.
- the tiles are stitched through the slots to ensure a continuous fibre reinforcement extends through the thickness of the armour package rather than being present only on its surface.
- Such a continuous fibre reinforcement can also pass through the grooves of the inventive tile.
- Figures 12a to 12c show a tile suitable for use in this embodiment of the invention.
- Figure 13 shows two such tiles and fibre reinforcements 9 extending along the grooves 7.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
- Finishing Walls (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB0613764A GB2439958A (en) | 2006-07-11 | 2006-07-11 | Armour tile arrangement |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1878993A2 true EP1878993A2 (de) | 2008-01-16 |
EP1878993A3 EP1878993A3 (de) | 2008-05-21 |
Family
ID=36955448
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP07252773A Withdrawn EP1878993A3 (de) | 2006-07-11 | 2007-07-11 | Keramik- oder Metal-Plattenpanzer |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP1878993A3 (de) |
GB (1) | GB2439958A (de) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ITFI20090130A1 (it) * | 2009-06-17 | 2010-12-18 | Ind Bitossi Spa | Componenti per corazze ceramiche. |
US8375841B2 (en) | 2009-06-17 | 2013-02-19 | Industrie Bitossi, S.p.A. | Armor tile |
WO2014016573A1 (en) * | 2012-07-27 | 2014-01-30 | Np Aerospace Limited | Armour |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU2459174C1 (ru) * | 2011-03-09 | 2012-08-20 | Закрытое акционерное общество "Кираса" | Керамический бронеэлемент и композитная броня на его основе |
RU2472099C1 (ru) * | 2011-06-08 | 2013-01-10 | Холдинговая компания "Новосибирский Электровакуумный Завод - Союз" в форме открытого акционерного общества | Керамический бронеэлемент и способ его изготовления |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1151441A (en) * | 1966-03-31 | 1969-05-07 | Aerojet General Co | Lightweight Armour Material |
DE3940623A1 (de) * | 1989-12-08 | 1991-06-13 | Sst Sicherheits Und Systemtech | Panzerungselement fuer eine ballistische panzerplattenanordnung |
GB2377006A (en) * | 2001-06-30 | 2002-12-31 | David Adie | Ballistic protection shield |
WO2003057462A1 (en) * | 2001-12-31 | 2003-07-17 | Higher Dimension Medical, Inc. | Penetration resistant fabric with multiple layer guard plate assemblies and method of making the same |
WO2005114089A1 (de) * | 2004-05-19 | 2005-12-01 | Deutsches Zentrum für Luft- und Raumfahrt e.V. | Keramische panzerplatte, panzerungssystem und verfahren zur herstellung einer keramischen panzerplatte |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4030427A (en) * | 1974-10-30 | 1977-06-21 | The United States Of America As Represented By The Secretary Of The Navy | Armor plate |
GB2336807A (en) * | 1998-04-27 | 1999-11-03 | David Adie | Ceramic sandwich material for ballistic protection |
DE50306975D1 (de) * | 2003-11-25 | 2007-05-16 | Sgl Carbon Ag | Keramische ballistische Schutzschicht |
-
2006
- 2006-07-11 GB GB0613764A patent/GB2439958A/en not_active Withdrawn
-
2007
- 2007-07-11 EP EP07252773A patent/EP1878993A3/de not_active Withdrawn
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1151441A (en) * | 1966-03-31 | 1969-05-07 | Aerojet General Co | Lightweight Armour Material |
DE3940623A1 (de) * | 1989-12-08 | 1991-06-13 | Sst Sicherheits Und Systemtech | Panzerungselement fuer eine ballistische panzerplattenanordnung |
GB2377006A (en) * | 2001-06-30 | 2002-12-31 | David Adie | Ballistic protection shield |
WO2003057462A1 (en) * | 2001-12-31 | 2003-07-17 | Higher Dimension Medical, Inc. | Penetration resistant fabric with multiple layer guard plate assemblies and method of making the same |
WO2005114089A1 (de) * | 2004-05-19 | 2005-12-01 | Deutsches Zentrum für Luft- und Raumfahrt e.V. | Keramische panzerplatte, panzerungssystem und verfahren zur herstellung einer keramischen panzerplatte |
Cited By (5)
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 |
WO2014016573A1 (en) * | 2012-07-27 | 2014-01-30 | Np Aerospace Limited | Armour |
US10012478B2 (en) | 2012-07-27 | 2018-07-03 | Np Aerospace Limited | Armour |
Also Published As
Publication number | Publication date |
---|---|
GB2439958A (en) | 2008-01-16 |
GB0613764D0 (en) | 2006-08-23 |
EP1878993A3 (de) | 2008-05-21 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US7997181B1 (en) | Hard component layer for ballistic armor panels | |
US7617757B2 (en) | Ceramic multi-hit armor | |
US7866248B2 (en) | Encapsulated ceramic composite armor | |
US5221807A (en) | Ballistic protection armor | |
EP1521051B1 (de) | Keramikkörper für Panzerplatte | |
US8402876B2 (en) | Ballistic lightweight ceramic armor with cross-pellets | |
EP1878993A2 (de) | Keramik- oder Metal-Plattenpanzer | |
US8281700B2 (en) | Composite armor plate and ceramic bodies for use therein | |
CA2597645A1 (en) | Kinetic energy rod warhead with lower deployment angles | |
US8468926B2 (en) | Ballistic armor system | |
EP2076730B1 (de) | Dynamische panzerung | |
US20160320162A1 (en) | Armour panels | |
US20090145289A1 (en) | Composite armor plate and method for using the same | |
US20160209178A1 (en) | Ballistic armor | |
US20120186434A1 (en) | Ballistic Lightweight ceramic armor with resistant devices based on geometric shapes | |
AU2012265273B2 (en) | Ballistic protection means | |
RU140126U1 (ru) | Композиционная броневая преграда | |
RU2462682C2 (ru) | Высокоплотные керамические блоки и включающая их композитная броня | |
US8438963B2 (en) | High density ceramic bodies and composite armor comprising the same | |
KR102079185B1 (ko) | 뿔대형 전면돌출부를 구비한 강재판과 콘크리트판의 합성 구조를 가지는 방탄구조체 및 그 제작방법 | |
RU160384U1 (ru) | Многослойная броня | |
WO2008097375A2 (en) | Encapsulated ceramic composite armor | |
AU2003248118A1 (en) | Ceramic bodies and ballistic armor incorporating the same | |
WO2008083457A1 (en) | Pellets for use in composite armor panels | |
US20100011947A1 (en) | Passive armor assembly including an armor member made of a brittle material |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
AK | Designated contracting states |
Kind code of ref document: A2 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR |
|
AX | Request for extension of the european patent |
Extension state: AL BA HR MK YU |
|
PUAL | Search report despatched |
Free format text: ORIGINAL CODE: 0009013 |
|
AK | Designated contracting states |
Kind code of ref document: A3 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR |
|
AX | Request for extension of the european patent |
Extension state: AL BA HR MK RS |
|
17P | Request for examination filed |
Effective date: 20080523 |
|
17Q | First examination report despatched |
Effective date: 20080709 |
|
AKX | Designation fees paid |
Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR |
|
GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
18D | Application deemed to be withdrawn |
Effective date: 20100629 |