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EP0432031A1 - Panzerung zum Schutz gegen ballistische Geschosse - Google Patents

Panzerung zum Schutz gegen ballistische Geschosse Download PDF

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Publication number
EP0432031A1
EP0432031A1 EP19900403435 EP90403435A EP0432031A1 EP 0432031 A1 EP0432031 A1 EP 0432031A1 EP 19900403435 EP19900403435 EP 19900403435 EP 90403435 A EP90403435 A EP 90403435A EP 0432031 A1 EP0432031 A1 EP 0432031A1
Authority
EP
European Patent Office
Prior art keywords
plate
auxiliary plate
shielding
cells
projectiles
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
EP19900403435
Other languages
English (en)
French (fr)
Other versions
EP0432031B1 (de
Inventor
Michel Vives
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.)
Societe Europeenne de Propulsion SEP SA
Original Assignee
Societe Europeenne de Propulsion SEP SA
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 Societe Europeenne de Propulsion SEP SA filed Critical Societe Europeenne de Propulsion SEP SA
Publication of EP0432031A1 publication Critical patent/EP0432031A1/de
Application granted granted Critical
Publication of EP0432031B1 publication Critical patent/EP0432031B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • 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
    • F41H5/0421—Ceramic layers in combination with metal layers

Definitions

  • the present invention relates to ballistic protection armor, comprising an armor plate intended to stop projectiles.
  • Such a shielding plate can be a metal plate, which leads to economical shielding, due to its low cost and the weldability of the plate, which is useful for stopping projectiles having a speed of less than 500 m / s.
  • a two-layer plate composed of a front element for ballistic protection, for example made of ceramic, and a rear element of structural strength, for example made of Kevlar.
  • a front element for ballistic protection for example made of ceramic
  • a rear element of structural strength for example made of Kevlar.
  • Such a two-layer plate offers a gain in mass and good performance for projectiles of speed greater than 500 m / s.
  • the object of the invention is to improve the ballistic performance of such shields, in particular of those which employ a two-layer plate of the type indicated above.
  • a shield according to the invention further comprises an auxiliary plate disposed in front of the shield plate, with a determined spacing, which is constituted by a ceramic plate pierced with a large number of cells distributed in a regular grid pattern. and formed by holes which are oriented perpendicular to the mean plane of the auxiliary plate. These holes may be blind holes opening onto the front face thereof, or through holes; in the latter case, the rear face of the auxiliary plate should be coated with an insulation sheet, for example aluminum or Kevlar, preserving the rear parts of the shielding.
  • an insulation sheet for example aluminum or Kevlar
  • the auxiliary plate placed in front of the armor plate has the effect of clawing the projectiles before they strike the armor plate, thus preparing by rupture primers their bursting on the latter.
  • the projectiles undergo destabilization on the part of the auxiliary plate, which collaborates in their fragmentation. This reduces the thickness, therefore the surface mass, of the armor plate, and thus achieving a weight gain over the whole armor, has equal efficiency.
  • This layer which preferably has a honeycomb structure, or can also be made of foam or elastomer, has a damping function.
  • the auxiliary plate can be made either of sintered ceramic such as alumina, silicon carbide or boron carbide, or in composite formed from a ceramic matrix containing a fibrous reinforcement.
  • the ceramic matrix can be constituted by silicon carbide or boron and the fibrous reinforcement by carbon fibers or silicon carbide.
  • the cells of the auxiliary plate preferably have a wall of cylindrical or prismatic shape with a diameter less than the caliber of the projectiles which the shielding must stop. If necessary, the front face of the auxiliary plate may include raised areas, regularly distributed in relation to the grid formed by the cells.
  • a lightened armor according to the invention finds application in particular for the protection of helicopters (seats, mechanical parts and engine) as well as in the manufacture of bullet-proof vests.
  • Figure 1 shows a cross section made through a portion of a shield according to the invention.
  • Figures 2 to 5 illustrate the phases of destruction of a projectile entering the armor of Figure 1.
  • Figures 6 and 7 show the projectile of Figure 3 seen respectively in side perspective and in section through a transverse plane.
  • FIGS. 8 and 9 represent two alternative embodiments of the auxiliary plate that the shield of FIG. 1 comprises.
  • FIG. 1 shows a protective shield against the impact of projectiles 15 of conventional ogival shape, composed of a main plate 10, an auxiliary plate 14, an intermediate layer 13 defining the spacing between the plates 10 and 14.
  • the auxiliary plate made of ceramic material, offers two flat and parallel faces; its front face, which receives the impact of projectiles 15, is pierced with cells 16 of circular section, formed, in the present example, of blind holes not opening on its rear face. These cells, cylindrical or possibly slightly conical, are distributed in rows and columns forming on the front face a regular grid.
  • Their axes 19 are oriented perpendicular to the surface of the front face and they have a circular section of diameter less than the caliber of the projectiles 15 to be stopped.
  • the front face of the auxiliary plate 14 can be given a shape which is not equal, possibly flat, but irregular, made up of raised areas inclined at various angles and directions of obliquity. Such a conformation can create a ricochet effect on the projectile, which increases the effectiveness of the armor.
  • FIG. 8 shows for example a plate 14 whose front face is formed of pyramids regular square bases, juxtaposed in rows and columns, the cells 16 being centered on the edges of the bases of said pyramids.
  • FIG. 9 shows another example where the plate 14 has a front face formed from juxtaposed parallel grooves, at the bottom of which the cells 16 are aligned.
  • the cells 16 can also offer a polygonal contour, for example hexagonal; such a conformation can be chosen whatever the structure adopted for the plate 14.
  • the auxiliary plate 14 can be made of sintered ceramic (alumina, silicon or boron carbide, etc.) or of ceramic fiber / matrix composite (C / SiC, C / B4C, SiC / SiC, etc.) .
  • the main plate 10 may comprise only a single element 11, made of ceramic matrix composite of one of the types indicated above, or comprise two elements 11, 12 joined together.
  • the front element 11 can be made of sintered ceramic, the rear element 12 then being made of Kevlar, a ceramic matrix composite or steel, or be made of a ceramic matrix composite, the element 12 being then steel, aluminum alloy or also Kevlar.
  • the intermediate layer 13 has here a honeycomb structure and can be made of aluminum, Kevlar-epoxy or fiberglass-epoxy, with a thickness leading to a spacing between the plates 10 and 14 of the order of the length a of the ogival point of the projectiles 15 to be stopped.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
  • Laminated Bodies (AREA)
EP90403435A 1989-12-06 1990-12-04 Panzerung zum Schutz gegen ballistische Geschosse Expired - Lifetime EP0432031B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8916137 1989-12-06
FR8916137A FR2655413B1 (fr) 1989-12-06 1989-12-06 Blindage de protection balistique.

Publications (2)

Publication Number Publication Date
EP0432031A1 true EP0432031A1 (de) 1991-06-12
EP0432031B1 EP0432031B1 (de) 1995-08-02

Family

ID=9388218

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90403435A Expired - Lifetime EP0432031B1 (de) 1989-12-06 1990-12-04 Panzerung zum Schutz gegen ballistische Geschosse

Country Status (5)

Country Link
US (1) US5221807A (de)
EP (1) EP0432031B1 (de)
CA (1) CA2031617C (de)
DE (1) DE69021346T2 (de)
FR (1) FR2655413B1 (de)

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DE4122876A1 (de) * 1991-07-11 1993-01-14 Messerschmitt Boelkow Blohm Boden- oder wandbelag zur vermeidung von geschossabprallern
US5349893A (en) * 1992-02-20 1994-09-27 Dunn Eric S Impact absorbing armor
FR2731512A1 (fr) * 1995-03-06 1996-09-13 Giat Ind Sa Panneau de blindage transparent
WO1999011997A1 (de) * 1997-09-04 1999-03-11 Akzo Nobel Nv Verbundsystem für kugel- und splitterschutz
DE202010000965U1 (de) 2010-01-15 2010-05-20 Rheinmetall Landsysteme Gmbh Vorrichtung zum Befestigen von vorzugsweise Sandwichplatten
WO2013087370A3 (en) * 2011-12-12 2013-10-24 Renco World Corporation A support member used in structure members
CN105737674A (zh) * 2016-02-29 2016-07-06 中国航空工业集团公司北京航空材料研究院 一种新型高强防护装甲板的制备方法
WO2021242201A1 (en) * 2020-05-29 2021-12-02 Tusas- Turk Havacilik Ve Uzay Sanayii Anonim Sirketi An armour system

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DE1042430B (de) * 1957-10-03 1958-10-30 Ver Leichtmetallwerke Gmbh Beschusssicherer Werkstoff
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DE2703409C1 (de) * 1977-01-28 1987-02-19 Thyssen Ind Ag Maschb Panzerung fuer die Wandung eines Objektes gegen Geschosse,Splitter od.dgl.
LU81882A1 (fr) * 1979-11-09 1982-09-10 Nicolas Charpentier Construction de plaques blindees
EP0213268A1 (de) * 1985-07-31 1987-03-11 The State Of Israel Ministry Of Defence Israel Military Industries Bodenbewegungsfahrzeug mit gepanzerter Fahrerkabine
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US5349893A (en) * 1992-02-20 1994-09-27 Dunn Eric S Impact absorbing armor
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FR2731512A1 (fr) * 1995-03-06 1996-09-13 Giat Ind Sa Panneau de blindage transparent
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WO2011085993A1 (de) 2010-01-15 2011-07-21 Rheinmetall Landsysteme Gmbh Vorrichtung zum befestigen von vorzugsweise sandwichplatten
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DE69021346T2 (de) 1996-03-21
DE69021346D1 (de) 1995-09-07
US5221807A (en) 1993-06-22
CA2031617C (fr) 1995-09-12
CA2031617A1 (fr) 1991-06-07
FR2655413A1 (fr) 1991-06-07
FR2655413B1 (fr) 1994-06-03
EP0432031B1 (de) 1995-08-02

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