EP2264393A1 - System of active ballistic protection - Google Patents

System of active ballistic protection Download PDF

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Publication number
EP2264393A1
EP2264393A1 EP10165405A EP10165405A EP2264393A1 EP 2264393 A1 EP2264393 A1 EP 2264393A1 EP 10165405 A EP10165405 A EP 10165405A EP 10165405 A EP10165405 A EP 10165405A EP 2264393 A1 EP2264393 A1 EP 2264393A1
Authority
EP
European Patent Office
Prior art keywords
panels
energetic material
ballistic protection
layer
present
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
EP10165405A
Other languages
German (de)
French (fr)
Inventor
Paolo Mariotti
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.)
Leonardo SpA
Original Assignee
Oto Melara SpA
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 Oto Melara SpA filed Critical Oto Melara SpA
Publication of EP2264393A1 publication Critical patent/EP2264393A1/en
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
    • F41H5/007—Reactive armour; Dynamic armour
    • C—CHEMISTRY; METALLURGY
    • C06—EXPLOSIVES; MATCHES
    • C06B—EXPLOSIVES OR THERMIC COMPOSITIONS; MANUFACTURE THEREOF; USE OF SINGLE SUBSTANCES AS EXPLOSIVES
    • C06B33/00—Compositions containing particulate metal, alloy, boron, silicon, selenium or tellurium with at least one oxygen supplying material which is either a metal oxide or a salt, organic or inorganic, capable of yielding a metal oxide
    • C06B33/08—Compositions containing particulate metal, alloy, boron, silicon, selenium or tellurium with at least one oxygen supplying material which is either a metal oxide or a salt, organic or inorganic, capable of yielding a metal oxide with a nitrated organic compound
    • C—CHEMISTRY; METALLURGY
    • C06—EXPLOSIVES; MATCHES
    • C06B—EXPLOSIVES OR THERMIC COMPOSITIONS; MANUFACTURE THEREOF; USE OF SINGLE SUBSTANCES AS EXPLOSIVES
    • C06B45/00—Compositions or products which are defined by structure or arrangement of component of product
    • C06B45/12—Compositions or products which are defined by structure or arrangement of component of product having contiguous layers or zones

Definitions

  • the present invention refers to a system of active ballistic protection.
  • the present invention refers to a system of active ballistic protection, also called active armour usable for the protection of armoured vehicles or for fixed stations which can be subject to attacks with firearms.
  • the typical configuration of reactive armours is constituted by front and rear stratifications which have the purpose of mechanically opposing to the menace and by an intermediate stratification which has the purpose of accelerating the most external screen.
  • the energy characterization of the intermediate stratification can be subdivided into three main categories.
  • the energetic layer is constituted by explosive; this configuration is the most efficient reactive armour.
  • the intermediate energetic layer is constituted by energetic material which has not the capacity of detonating, this category has an efficacy lower than the first one.
  • the intermediate layer is constituted by non-energetic material which, depending on its chemical-physical characteristics, is able to accelerate the most external layer of the reactive sandwich, but has less efficiency than the others.
  • the present invention proposes to realize a system of active ballistic protection formed by at least two external metallic layers among which it is inserted at least a reactive layer which, when reached by metal or other material which penetrates into one of the external layers, reacts by increasing its thickness in the direction of advancement of the penetrating material, thus increasing the protective capacity of the external metallic layers.
  • the behavior of the reactive layer is obtained through the use of a weakened detonating material.
  • An aspect of the present invention refers to a system of active ballistic protection having the characteristics of the attached claim 1.
  • the system according to the present invention can be used as reinforcement and armour-plating panel for vehicles or for fixed stations.
  • the kind of menace from which the system gives protection is a menace brought by material which is sent at high speed in direction of the station to be protected. Normally, this is melted or semi-melted metallic material constituted by projectiles fired by rocket launchers or similar firearms, or shaped charge jets, generated by static blasts.
  • the system according to the present invention comprises at least a panel 1 formed by at least two external metallic layers 2 and 3 between which a layer of energetic material 4 is inserted, for example a weakened detonating material.
  • the weakened detonating material has the characteristic of "reacting" by expanding, once the menace, for example the projectile, has perforated an external layer.
  • the two metallic layers of the sandwich are preferably constituted by two plates having lateral size and thickness of 2 mm.
  • the two plates are preferably separated by a frame 5 for example of nylon along the entire rim.
  • the assembly is provided with passing holes in order to assemble it.
  • a suitable energetic material according to the present invention is the explosive PBX N109, as basic energetic material from which it is possible to obtain the weakening by eliminating the content of aluminum and by diminishing the percentage of RDX with respect to the inert ligands, for example polyurethanic ligands.
  • a suitable percentage of RDX is comprised between 30% and 50%, preferably 40%.
  • FIG 2 it is shown a system comprising two panels arranged parallel to each other separated one from the other by means of a spacer element 6.
  • the panels are inclined with respect to the direction of the menace and arranged inside a metallic box body 7.
  • a suitable inclination angle of the panels is comprised between 20° and 40°, preferably 30°.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • General Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
  • Laminated Bodies (AREA)
  • Amplifiers (AREA)
  • Train Traffic Observation, Control, And Security (AREA)
  • Laying Of Electric Cables Or Lines Outside (AREA)

Abstract

A system of active ballistic protection formed by at least a panel (1) comprising at least two external metallic layers (2,3) between which a layer of energetic material (4) is inserted characterized in that said energetic material is obtained from a weakened detonating material.

Description

  • The present invention refers to a system of active ballistic protection.
  • In particular, the present invention refers to a system of active ballistic protection, also called active armour usable for the protection of armoured vehicles or for fixed stations which can be subject to attacks with firearms.
  • The typical configuration of reactive armours is constituted by front and rear stratifications which have the purpose of mechanically opposing to the menace and by an intermediate stratification which has the purpose of accelerating the most external screen. The energy characterization of the intermediate stratification can be subdivided into three main categories.
  • In a first category the energetic layer is constituted by explosive; this configuration is the most efficient reactive armour.
  • In a second category the intermediate energetic layer is constituted by energetic material which has not the capacity of detonating, this category has an efficacy lower than the first one.
  • In the third category the intermediate layer is constituted by non-energetic material which, depending on its chemical-physical characteristics, is able to accelerate the most external layer of the reactive sandwich, but has less efficiency than the others.
  • The present invention proposes to realize a system of active ballistic protection formed by at least two external metallic layers among which it is inserted at least a reactive layer which, when reached by metal or other material which penetrates into one of the external layers, reacts by increasing its thickness in the direction of advancement of the penetrating material, thus increasing the protective capacity of the external metallic layers.
  • The behavior of the reactive layer is obtained through the use of a weakened detonating material.
  • An aspect of the present invention refers to a system of active ballistic protection having the characteristics of the attached claim 1.
  • Other characteristics of the panel are contained into the subsequent depending claims.
  • Other purposes and advantages of the present invention will appear clear from the following description and from the attached drawings, provided as exemplificative and non-limiting, wherein:
    • figure 1 schematically shows an exploded view of a panel of the system of active ballistic protection according to the present invention;
    • figure 2 shows an embodiment of the system according to the present invention provided with two panels parallel to each other and inclined with respect to the direction of the menace.
  • With reference to the abovementioned figures, the system according to the present invention can be used as reinforcement and armour-plating panel for vehicles or for fixed stations.
  • The kind of menace from which the system gives protection is a menace brought by material which is sent at high speed in direction of the station to be protected. Normally, this is melted or semi-melted metallic material constituted by projectiles fired by rocket launchers or similar firearms, or shaped charge jets, generated by static blasts.
  • The system according to the present invention comprises at least a panel 1 formed by at least two external metallic layers 2 and 3 between which a layer of energetic material 4 is inserted, for example a weakened detonating material. The weakened detonating material has the characteristic of "reacting" by expanding, once the menace, for example the projectile, has perforated an external layer.
  • The two metallic layers of the sandwich are preferably constituted by two plates having lateral size and thickness of 2 mm.
  • For containing the sheet of energetic material, the two plates are preferably separated by a frame 5 for example of nylon along the entire rim. The assembly is provided with passing holes in order to assemble it.
  • A suitable energetic material according to the present invention is the explosive PBX N109, as basic energetic material from which it is possible to obtain the weakening by eliminating the content of aluminum and by diminishing the percentage of RDX with respect to the inert ligands, for example polyurethanic ligands. A suitable percentage of RDX is comprised between 30% and 50%, preferably 40%.
  • In figure 2 it is shown a system comprising two panels arranged parallel to each other separated one from the other by means of a spacer element 6. The panels are inclined with respect to the direction of the menace and arranged inside a metallic box body 7. A suitable inclination angle of the panels is comprised between 20° and 40°, preferably 30°.
  • In the same way, a different number of panels can be used with a different geometric arrangement, and furthermore there can be present other passive elements.

Claims (8)

  1. System of active ballistic protection formed by at least a panel (1) comprising at least two external metallic layers (2,3) between which a layer of energetic material (4) is inserted characterized in that said energetic material is obtained from a weakened detonating material.
  2. System according to claim 1, wherein a suitable energetic material is the explosive PBX N109, as basic energetic material from which obtaining the weakening.
  3. A system according to claim 1, wherein the weakening is obtained by eliminating the content of aluminum and by diminishing the percentage of RDX with respect to the inert ligands.
  4. System according to claim 3, wherein a suitable percentage of RDX is comprised between 30% and 50%, preferably 40%.
  5. System according to claim 1, comprising two panels (1) arranged parallel to each other separated one from the other by means of a spacer element (6), said panels being inclined with respect to the direction of the menace.
  6. System according to claim 1, wherein a suitable inclination angle of the panels is comprised between 20° and 40°, preferably 30°.
  7. System according to claim 5, wherein the panels are arranged inside a metallic box body (7).
  8. System according to claim 5, wherein further passive elements are present between the panels.
EP10165405A 2009-06-16 2010-06-09 System of active ballistic protection Ceased EP2264393A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITTO2009A000458A IT1395772B1 (en) 2009-06-16 2009-06-16 ACTIVE BALLISTIC PROTECTION SYSTEM.

Publications (1)

Publication Number Publication Date
EP2264393A1 true EP2264393A1 (en) 2010-12-22

Family

ID=41510504

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10165405A Ceased EP2264393A1 (en) 2009-06-16 2010-06-09 System of active ballistic protection

Country Status (5)

Country Link
US (1) US20110138993A1 (en)
EP (1) EP2264393A1 (en)
IL (1) IL205875A (en)
IT (1) IT1395772B1 (en)
SG (1) SG186662A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105890458A (en) * 2016-06-28 2016-08-24 中国人民解放军军械工程学院 Protection method for resisting penetration of high velocity armour piercer

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090217811A1 (en) 2006-01-17 2009-09-03 David William Leeming Textile armour
EA202190514A1 (en) * 2019-07-19 2021-06-01 Мб "Идерика" VERTICALLY ORIENTED EXPLOSIVE REACTIVE ARMOR, ITS DESIGN AND METHOD OF ACTION
IL282038B2 (en) * 2021-03-22 2023-05-01 Rafael Advanced Defense Systems Ltd Subtle reactive protective armor

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5070764A (en) * 1989-01-18 1991-12-10 The State Of Israel, Ministry Of Defense, Rafael Armament Combined reactive and passive armor
DE3842677C1 (en) * 1988-12-19 1996-07-18 Rheinmetall Ind Gmbh Active armour esp. for armoured vehicle
US6619181B1 (en) * 2002-05-16 2003-09-16 The United States Of America As Represented By The Secretary Of The Army Apparatus for reversing the detonability of an explosive in energetic armor
EP1517110A1 (en) * 2003-09-16 2005-03-23 GEKE Technologie GmbH Combined protection system
WO2006109304A2 (en) * 2005-04-12 2006-10-19 Rafael Armament Development Authority Ltd. Extremely insensitive detonating substance and method for its manufacture

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4726919A (en) * 1985-05-06 1988-02-23 Morton Thiokol, Inc. Method of preparing a non-feathering nitramine propellant
US5354496A (en) * 1987-07-27 1994-10-11 Elliott Stanley B Lyotropic liquid crystal salt/inorganic compound complexation products
US5413027A (en) * 1993-03-19 1995-05-09 The United States Of America As Represented By The Secretary Of The Army Reactive armor with radar absorbing structure
FR2805037B1 (en) * 2000-02-10 2002-04-05 Giat Ind Sa WALL PROTECTION DEVICE
US20060070690A1 (en) * 2003-08-29 2006-04-06 Miller Paul L Recovery of the energetic component from plastic bonded explosives
KR100636827B1 (en) * 2004-10-18 2006-10-20 국방과학연구소 Momentum transfer reaction gloves
IL186152A (en) * 2007-09-20 2014-04-30 Rafael Advanced Defense Sys Armor module

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3842677C1 (en) * 1988-12-19 1996-07-18 Rheinmetall Ind Gmbh Active armour esp. for armoured vehicle
US5070764A (en) * 1989-01-18 1991-12-10 The State Of Israel, Ministry Of Defense, Rafael Armament Combined reactive and passive armor
US6619181B1 (en) * 2002-05-16 2003-09-16 The United States Of America As Represented By The Secretary Of The Army Apparatus for reversing the detonability of an explosive in energetic armor
EP1517110A1 (en) * 2003-09-16 2005-03-23 GEKE Technologie GmbH Combined protection system
WO2006109304A2 (en) * 2005-04-12 2006-10-19 Rafael Armament Development Authority Ltd. Extremely insensitive detonating substance and method for its manufacture

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105890458A (en) * 2016-06-28 2016-08-24 中国人民解放军军械工程学院 Protection method for resisting penetration of high velocity armour piercer

Also Published As

Publication number Publication date
IL205875A0 (en) 2010-12-30
IL205875A (en) 2015-09-24
US20110138993A1 (en) 2011-06-16
SG186662A1 (en) 2013-01-30
IT1395772B1 (en) 2012-10-19
ITTO20090458A1 (en) 2010-12-17

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