EP1176385B1 - Sprenggeschoss mit einem Splittermantel - Google Patents

Sprenggeschoss mit einem Splittermantel Download PDF

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Publication number
EP1176385B1
EP1176385B1 EP01401869A EP01401869A EP1176385B1 EP 1176385 B1 EP1176385 B1 EP 1176385B1 EP 01401869 A EP01401869 A EP 01401869A EP 01401869 A EP01401869 A EP 01401869A EP 1176385 B1 EP1176385 B1 EP 1176385B1
Authority
EP
European Patent Office
Prior art keywords
case
ammunition
shell
explosive
envelope
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.)
Expired - Lifetime
Application number
EP01401869A
Other languages
English (en)
French (fr)
Other versions
EP1176385A1 (de
Inventor
Jean-Luc Renaud-Bezot
Bertrand Padiolleau
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.)
Giat Industries SA
Original Assignee
Giat Industries 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 Giat Industries SA filed Critical Giat Industries SA
Publication of EP1176385A1 publication Critical patent/EP1176385A1/de
Application granted granted Critical
Publication of EP1176385B1 publication Critical patent/EP1176385B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B12/00—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material
    • F42B12/02—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect
    • F42B12/20—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect of high-explosive type
    • F42B12/22—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect of high-explosive type with fragmentation-hull construction

Definitions

  • the technical field of the invention is that of Explosive ammunition with fragmentable body.
  • These ammunition usually include a cargo explosive arranged in a metal casing generator splinters.
  • the generation of chips having a shape and a size particular may be obtained by embrittlement of the envelope following a particular network.
  • embrittlement will be done for example by grooving or localized heating by laser.
  • Patent FR 2438686 describes an ammunition whose envelope is thus weakened.
  • the cost will be greater than the ammunition one seeks to achieve will be of reduced caliber (less than 70mm). Indeed, the machining to be carried out as well as the assemblies will be more delicate therefore more expensive.
  • the munition according to the invention makes it possible to lower the cost to ensure the generation of calibrated chips.
  • the subject of the invention is an explosive munition at fragmentable body comprising an explosive charge arranged in a casing generating shards, ammunition characterized in that it comprises a case surrounding the envelope, case incorporating means to ensure the initiation of ammunition a differential of constraints at the outer surface of the envelope, differential favoring the generation of splinters and which is distributed spatially according to a regular network.
  • the means for creating a differential of constraints may include a inner surface of the case having a relief network of which each mesh is hollow and delimited by a rim in relief in contact with the envelope, such a provision ensuring during the initiation of the ammunition a embrittlement of the envelope along the edges to form splinters.
  • the means creating a constraint differential may include a grid integral with the case or interposed between the case and the envelope, grid forming the weakening network.
  • the case may be made of a plastic material.
  • the grid may advantageously be embedded in the case.
  • an explosive ordnance 1 according to a first embodiment of the invention comprises a fragmentable body formed of an envelope 2 made of steel or tungsten and delimiting an internal volume inside which is placed an explosive charge 3.
  • the material of the envelope will not bear any localized fragilization according to meshes. He may have has undergone a heat treatment of embrittlement, for example a hardening by quenching.
  • the envelope 2 is fixed (for example by crimping) to level of a shoulder 4a of a closure cap 4 which carries a belt 12 intended to ensure gas tightness to inside the tube of a weapon (not shown).
  • the base 4 encloses a priming device 5 which is well known to those skilled in the art and is therefore not represented in detail and that ensures the initiation of the explosive charge 3 via a detonator primer 6.
  • this ammunition is characterized in that it comprises a case 7 surrounding the envelope 2.
  • the case 7 is fixed for example by gluing to level of a second shoulder 4b of the base 4.
  • This case incorporates means to ensure, when of the initiation of the explosive charge of the ammunition, a differential of mechanical stresses at the level of outer surface of the envelope 2.
  • This differential is defined in order to favor the generation of splinters and it is spatially distributed according to a regular network
  • Such a constraint differential is obtained in having means ensuring mechanical resistance to level of the outer surface of the envelope 2 which is not evenly distributed but following a regular network.
  • fragmentation of the envelope will be oriented according to the network of said constraint differential without it being necessary to weaken it beforehand following a fragmentation network.
  • the means creating a differential of constraints include an inner surface 8 of the case 7 which presents a relief network.
  • Each mesh 9 of this network is hollow and it is located bounded by a raised edge 10 which is in contact with the envelope 2.
  • the relief network here has a basic elemental mesh square.
  • the side of this square is about 2 mm for a 35 mm ammunition caliber (maximum external diameter of the case 7).
  • the height of the rim 10 of the mesh is the order of 1 mm for a case of 2 mm thick and realized in a plastic material of the polyamide or polycarbonate type.
  • case 7 has a front portion 7a forming a ballistic cap or warhead.
  • the ammunition according to the invention is extremely simple to manufacture and inexpensive. Indeed, the shrapnel envelope 2 has internal surfaces and external totally smooth. It is therefore inexpensive to obtain by sintering or by forging.
  • envelope 2 is attached to base 4 carrying the 5/6 priming system. Then we have the case 7 around the envelope 2.
  • the internal diameter of case 7 will be chosen slightly lower (from a few tenths of a millimeter) to the outer diameter of the casing 2. ensures an intimate contact between the edges 10 of mesh and the outer surface of the envelope 2.
  • the case 7 has been obtained in a simple and inexpensive way by injecting plastic material into a mold with a profile appropriate. In addition, it also performs the functions of ballistic cap for ammunition.
  • the body of the envelope is smooth and the mesh results from the single shape of the inner surface of the case 7.
  • Figure 4 shows a munition 1 following a second embodiment of the invention.
  • This mode differs from the previous one by the structure of the means to create a constraint differential at the level of the envelope.
  • the grid is made of a wire of steel 0.1 mm in diameter.
  • the grid can be metallic or made of a high-grade plastic density (greater than 1), ceramic or fiberglass.
  • Grid 11 is shown alone in FIG. such grid is generally cylindrical. It is obtained by winding a plane grid and soldering edge-to-edge edges of this one.
  • the grid 11 is embedded in the material of the case 7. This last is made of plastic injected around the grid which is arranged in the injection mold. So virtually the entire inner surface of the case 7 is in contact with the outer surface of the envelope 2. Avoid thus the deformations of the holster during phases of storage or transport of the ammunition.
  • the grid ensures a rigidification of the case 7 and makes it possible to obtain the desired stress differential with a thickness case of the order of mm.
  • FIG. 6 thus shows a sectional view of an ammunition 1 which incorporates a case 7 having an inner surface having a relief network with hollow meshes 9 are delimited by a raised edge 10 in contact with the casing 2.
  • This case 7 also comprises a shaped insert by a grid 11 whose meshes are substantially identical to those of the relief network and are arranged in coincidence with the meshes of this network.
  • wires of the grid 11 are opposite rims 10 of the case network 7.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Wire Processing (AREA)
  • General Details Of Gearings (AREA)
  • Powder Metallurgy (AREA)
  • Disintegrating Or Milling (AREA)
  • Laminated Bodies (AREA)
  • Drilling And Exploitation, And Mining Machines And Methods (AREA)
  • Vibration Dampers (AREA)

Claims (8)

  1. Explosiv-Munition (1) mit splitterbarem Korpus, umfassend eine Explosivladung (3), die in einer Splitter erzeugenden Hülle (2) angeordnet ist, wobei die Munition dadurch gekennzeichnet ist, dass sie eine Hülse (7) enthält, welche die Hülle (2) umgibt, wobei die Hülse Mittel einschließt, die es erlauben, bei der Initiierung der Munition im Bereich der äußeren Fläche der Hülle (2) einen Gradienten in den mechanischen Beanspruchungen zu gewährleisten, wobei der Gradient die Erzeugung von Splittern begünstigt und räumlich entsprechend eines gleichmäßigen Rasters verteilt ist.
  2. Explosiv-Munition nach Anspruch 1, dadurch gekennzeichnet, dass die Mittel, die einen Gradienten in den Beanspruchungen bilden, eine innere Fläche (8) der Hülse (7) enthalten, die ein erhabenes Raster aufweist, von dem jedes Rasterelement (9) vertieft ist und von einem erhabenen Rand (10), der mit der Hülle (2) in Kontakt steht, begrenzt wird, wobei eine derartige Anordnung bei der Initiierung der Munition eine Versprödung der Hülle (2) entlang den Rändern (10) gewährleistet, um Splitter zu bilden.
  3. Explosiv-Munition nach einem der Ansprüche 1 oder 2, dadurch gekennzeichnet, dass die Mittel, die einen Gradienten in den Beanspruchungen bilden, ein Gitter (11) umfassen, das fest mit der Hülse (7) verbunden ist oder zwischen die Hülse und die Hülle (2) eingefügt ist, wobei das Gitter das Raster zur Versprödung bildet.
  4. Explosiv-Munition nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass die Hülse (7) aus einem Kunststoff ausgeführt ist.
  5. Explosiv-Munition nach Ansprüche 3 und 4, dadurch gekennzeichnet, dass das Gitter (11) in der Hülse eingelassen ist.
  6. Explosiv-Munition nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass das Raster ein quadratisches elementares Rasterelement (9) aufweist.
  7. Explosiv-Munition nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass die Hülle (2) aus Stahl oder Wolfram hergestellt ist.
  8. Explosiv-Munition nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, dass die Hülse (7) eine ballistische Geschossspitze (7a) darstellt.
EP01401869A 2000-07-28 2001-07-12 Sprenggeschoss mit einem Splittermantel Expired - Lifetime EP1176385B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0010022 2000-07-28
FR0010022A FR2812385B1 (fr) 2000-07-28 2000-07-28 Munition explosive a corps fragmentable

Publications (2)

Publication Number Publication Date
EP1176385A1 EP1176385A1 (de) 2002-01-30
EP1176385B1 true EP1176385B1 (de) 2005-02-09

Family

ID=8853097

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01401869A Expired - Lifetime EP1176385B1 (de) 2000-07-28 2001-07-12 Sprenggeschoss mit einem Splittermantel

Country Status (5)

Country Link
US (1) US6857372B2 (de)
EP (1) EP1176385B1 (de)
AT (1) ATE289055T1 (de)
DE (1) DE60108817T2 (de)
FR (1) FR2812385B1 (de)

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US6745698B2 (en) * 2002-02-14 2004-06-08 Doris Nebel Beal Inter Vivos Patent Trust Projectile jacket having frangible closed end
US20070006768A1 (en) * 2005-07-06 2007-01-11 Rafael-Armament Development Authority Ltd. Mushroom warhead
DE102007001998A1 (de) * 2007-01-08 2008-07-10 Rheinmetall Waffe Munition Gmbh Sprenggeschoss
DE102007025258A1 (de) 2007-05-30 2008-12-04 Rheinmetall Waffe Munition Gmbh Gefechtskopf
DE102007056785A1 (de) * 2007-11-23 2009-05-28 Rheinmetall Waffe Munition Gmbh Geschoss
DE102007056786A1 (de) * 2007-11-23 2009-05-28 Rheinmetall Waffe Munition Gmbh Geschoss
DE102008010706A1 (de) 2008-02-22 2009-08-27 Rheinmetall Waffe Munition Gmbh Sprenggeschoss
DE102008010707A1 (de) 2008-02-22 2009-08-27 Rheinmetall Waffe Munition Gmbh Sprenggeschoss und Verfahren zu seiner Herstellung
US7886667B1 (en) * 2008-10-15 2011-02-15 The United States Of America As Represented By The Secretary Of The Army More safe insensitive munition for producing a controlled fragmentation pattern
US8015924B1 (en) * 2009-05-29 2011-09-13 The United States Of America As Represented By The Secretary Of The Air Force Linear cellular bomb case
US8272330B1 (en) * 2010-02-22 2012-09-25 The United States Of America As Represented By The Secretary Of The Army Selectable size fragmentation warhead
US8522685B1 (en) * 2010-02-22 2013-09-03 The United States Of America As Represented By The Secretary Of The Army Multiple size fragment warhead
US8387539B1 (en) * 2010-05-10 2013-03-05 The United States Of America As Represented By The Secretary Of The Air Force Sculpted reactive liner with semi-cylindrical linear open cells
US8522682B1 (en) * 2010-09-23 2013-09-03 The United States Of America As Represented By The Secretary Of The Navy Advanced grenade concept with novel placement of MEMS fuzing technology
US8671840B2 (en) 2011-01-28 2014-03-18 The United States Of America As Represented By The Secretary Of The Navy Flexible fragmentation sleeve
US8967049B2 (en) 2011-01-28 2015-03-03 The United States Of America As Represented By The Secretary Of The Navy Solid lined fabric and a method for making
US9038539B2 (en) * 2013-06-14 2015-05-26 The United States Of America As Represented By The Secretary Of The Army Warhead case and method for making same
US9759533B2 (en) 2015-03-02 2017-09-12 Nostromo Holdings, Llc Low collateral damage bi-modal warhead assembly
US9470495B2 (en) * 2015-03-20 2016-10-18 Combined Systems, Inc. Rubber fragmentation grenade
US10222182B1 (en) 2017-08-18 2019-03-05 The United States Of America As Represented By The Secretary Of The Navy Modular shaped charge system (MCS) conical device
FR3086746B1 (fr) 2018-10-01 2020-08-28 Nexter Munitions Enveloppe pour munition et munition incorporant une telle enveloppe
SE544060C2 (sv) * 2019-03-19 2021-11-30 Bae Systems Bofors Ab En stridsdel och ett förfarande för framställning av en stridsdel
US11454480B1 (en) 2019-06-12 2022-09-27 Corvid Technologies LLC Methods for forming munitions casings and casings and munitions formed thereby
RU2709122C1 (ru) * 2019-08-29 2019-12-16 Федеральное казенное предприятие "Научно-исследовательский институт "Геодезия" (ФКП "НИИ "Геодезия" Противолавинный снаряд
DE102022000198A1 (de) 2022-01-20 2023-07-20 Diehl Defence Gmbh & Co. Kg Additiv hergestellte Tragstruktur für einen Gefechtskopf

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Also Published As

Publication number Publication date
FR2812385B1 (fr) 2003-02-21
FR2812385A1 (fr) 2002-02-01
US20020014177A1 (en) 2002-02-07
US6857372B2 (en) 2005-02-22
EP1176385A1 (de) 2002-01-30
ATE289055T1 (de) 2005-02-15
DE60108817D1 (de) 2005-03-17
DE60108817T2 (de) 2006-01-19

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