EP0433544B1 - Projectile à fragmentation - Google Patents

Projectile à fragmentation Download PDF

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Publication number
EP0433544B1
EP0433544B1 EP90114529A EP90114529A EP0433544B1 EP 0433544 B1 EP0433544 B1 EP 0433544B1 EP 90114529 A EP90114529 A EP 90114529A EP 90114529 A EP90114529 A EP 90114529A EP 0433544 B1 EP0433544 B1 EP 0433544B1
Authority
EP
European Patent Office
Prior art keywords
casing
projectile
explosive
shell
fragmentation
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
EP90114529A
Other languages
German (de)
English (en)
Other versions
EP0433544A1 (fr
Inventor
Hendrik Lips
Herbert Weisshaupt
Hans Orth
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.)
Rheinmetall Industrie AG
Original Assignee
Rheinmetall Industrie AG
Rheinmetall GmbH
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 Rheinmetall Industrie AG, Rheinmetall GmbH filed Critical Rheinmetall Industrie AG
Publication of EP0433544A1 publication Critical patent/EP0433544A1/fr
Application granted granted Critical
Publication of EP0433544B1 publication Critical patent/EP0433544B1/fr
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
    • F42B12/36—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect for dispensing materials; for producing chemical or physical reaction; for signalling ; for transmitting information
    • F42B12/44—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect for dispensing materials; for producing chemical or physical reaction; for signalling ; for transmitting information of incendiary type
    • 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
    • F42B12/24—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 with grooves, recesses or other wall weakenings

Definitions

  • the invention relates to a fragmentary projectile as defined by the preamble of claim 1.
  • Such fragments are known for example from US-A-3,566,794.
  • a plurality of casings abutting one another are arranged around the centrally arranged explosive, each of which has V-shaped predetermined breaking points in order to produce the largest possible number of fragments.
  • the predetermined breaking points of the casing closest to the explosive are provided with the predetermined breaking points on the explosive side.
  • a multi-shell fragmentary projectile in which the shell closest to the explosive has V-shaped grooves on the explosive side which do not change the wall thickness of the shell.
  • the grooves are designed such that the corresponding groove walls act like local shaped charge inserts. This means that the V-shaped groove walls on the explosives side directly from explosives must be surrounded and must therefore be arranged in any case on the side of the shell facing the explosives.
  • the local shaped charges act on the outer shell, which then first tears along those areas which lie opposite the V-shaped grooves.
  • US-A-4,106,411 discloses a fragmentary projectile which has several casings with structural zones. Areas are filled with explosives between the inner casings and areas with a fire mass between the outer casings. In these explosive projectiles too, the fire mass reaches the target practically simultaneously with the shell fragments, so that ignition of the combustible liquid of a target cannot be ensured.
  • a splinter floor is shown in Fig. 2, which also consists of several shell casings. In this case, however, the splinter shell and the zirconium shell causing the fire effect are separate units.
  • a disadvantage of this invention is the fact that a large number of undefined fragments arise. There is no reproducible splinter distribution.
  • the object of the present invention is, based on US 3,566,794, to further develop a splinter projectile in such a way that the actual splinter casing is particularly easy to manufacture, and that in addition a desired fire effect, e.g. B. when fighting aircraft tanks.
  • the invention is therefore based on the idea of generating an optimization of the splintering and fire effects in that the structural zones of the inner shell consist of areas of smaller wall thickness than the parts of the shell surrounding the structural zones.
  • the wall thicknesses, casing materials and the number of casings determine the shape and mass distribution of the fragments and - depending on the intended use - can be optimally adapted to the target requirements.
  • the fragmentary floor consisting of several shell casings is designated by 1.
  • the shell is composed of the outer shell 2 and 3 and the inner shell 4.
  • Structural zones 7 are located in the inner shell 4 on the side facing away from the explosive 5. These structural zones 7 are selected such that the remaining wall thickness of the shell 4 at these points is less than the wall thickness of the parts of the shell 4 surrounding the structural zones.
  • FIG. 4 and 4a and 5 and 5a two further exemplary embodiments of the inner shell 4 ', 4' 'with structural zones 7', 7 '' are shown.
  • 4 shows a top view
  • FIG. 4a shows a cross section of the inner shell 4 'with a structure zone distribution which is selected such that the parts of the shell 4' surrounding the structure zones have an approximately rectangular shape.
  • 5 shows the top view of a projectile casing 4 ′′ with structural zones 7 ′′, which have a sawtooth-shaped course (see FIG. 5a).
  • FIG. 6 shows the inner shell 4, the structural zones 7 and the adjacent outer shell 3.
  • the resulting shock wave pulse is locally coupled into the casing 3 at the contact points 8.
  • the corresponding waves are reflected at the transition of the material of the casing 4 to the air.
  • the energy coupled in at the contact points 8 accelerates partial regions of the outer shell 3 or induces voltage gradients in this shell. This leads to the formation of splinters whose geometry corresponds to the pattern made on the inner shell.
  • the shape, size and number of chips as well as the speed of the chips can be adjusted by suitable structuring of the inner shell 4.

Claims (3)

  1. Projectile à éclats (1) dans lequel l'explosif (5) est entouré par au moins deux enveloppes (2, 3' 4', 4''), l'enveloppe (4, 4', 4'') la plus proche de l'explosif (5) présentant une structure d'éclats donnée (zones structurées) (7, 7', 7''), sur la base de laquelle le projectile (1) produit des éclats reproductibles lors de la détonation, et les zones structurées (7, 7', 7'') étant constituées de parties données d'épaisseur de paroi inférieure à celle des parties de l'enveloppe (4, 4', 4'') entourant les zones structurées, caractérisé en ce que les zones structurées (7, 7', 7'') sont prévues sur le côté de l'enveloppe (4, 4', 4''), tourné à l'opposé de l'explosif (5), ce qui fait que l'onde de choc se produisant lors de la détonation est transmise localement, décalée dans le temps, aux enveloppes suivantes (2, 3) et transmet ainsi la forme d'éclats prévue, et en ce qu'une masse incendiaire (6) est prévue sur le côté de l'enveloppe (4, 4', 4''), tourné vers l'explosif (5).
  2. Projectile à éclats selon la revendication 1, caractérisé en ce que l'enveloppe (4, 4', 4''), pourvue des zones structurées (7, 7', 7'') présente une impédance ρ . c nettement inférieure à celle de l'enveloppe (3) extérieure adjacente, ρ étant la densité du matériau correspondant et c la vitesse de l'onde de choc provoquée dans le matériau respectif par la détonation.
  3. Projectile à éclats selon la revendication 2, caractérisé en ce que l'enveloppe (4 4' 4''), pourvue des zones structurées (7, 7' 7''), est en acier et l'enveloppe (3) extérieure adjacente en tungstène ou métal lourd à base de tungstène.
EP90114529A 1989-12-07 1990-07-28 Projectile à fragmentation Expired - Lifetime EP0433544B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3940462A DE3940462A1 (de) 1989-12-07 1989-12-07 Splittergeschoss
DE3940462 1989-12-07

Publications (2)

Publication Number Publication Date
EP0433544A1 EP0433544A1 (fr) 1991-06-26
EP0433544B1 true EP0433544B1 (fr) 1994-03-02

Family

ID=6394990

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90114529A Expired - Lifetime EP0433544B1 (fr) 1989-12-07 1990-07-28 Projectile à fragmentation

Country Status (3)

Country Link
US (1) US5131329A (fr)
EP (1) EP0433544B1 (fr)
DE (2) DE3940462A1 (fr)

Families Citing this family (35)

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USH1367H (en) * 1991-02-07 1994-11-01 The United States Of America As Represented By The Secretary Of The Navy Wire assault weapon warhead
US5567906B1 (en) * 1995-05-15 1998-06-09 Western Atlas Int Inc Tungsten enhanced liner for a shaped charge
FR2741437B1 (fr) * 1995-11-16 1997-12-19 Poudres & Explosifs Ste Nale Procede de fabrication d'un element de munition explosive a fragmentation controlee
DE19600167C1 (de) * 1996-01-04 2003-07-17 Diehl Stiftung & Co Penetrator
DE19809181C1 (de) * 1998-03-04 1999-07-29 Daimler Benz Aerospace Ag Splittergefechtskopf
FR2785672B1 (fr) * 1998-11-05 2005-08-26 Tda Armements Sas Projectile a fragmentation calibree
US6186070B1 (en) * 1998-11-27 2001-02-13 The United States Of America As Represented By The Secretary Of The Army Combined effects warheads
DE10025055C2 (de) * 2000-05-23 2003-12-24 Eads Deutschland Gmbh Splittererzeugender Gefechtskopf zur Bekämpfung halbharter technischer Ziele
EP1167914A1 (fr) * 2000-06-19 2002-01-02 SM Schweizerische Munitionsunternehmung AG Projectile autopropulsé avec noyau perforant
FR2812385B1 (fr) * 2000-07-28 2003-02-21 Giat Ind Sa Munition explosive a corps fragmentable
US20050087088A1 (en) * 2003-09-30 2005-04-28 Lacy E. W. Ordnance device for launching failure prone fragments
US6817299B1 (en) 2003-12-10 2004-11-16 The United States Of America As Represented By The Secretary Of The Navy Fragmenting projectile having threaded multi-wall casing
BG969U1 (bg) * 2006-12-19 2007-12-28 "Арсенал" Ад Осколъчна граната
US7743707B1 (en) * 2007-01-09 2010-06-29 Lockheed Martin Corporation Fragmentation warhead with selectable radius of effects
IL189612A (en) * 2008-02-19 2012-10-31 Rafael Advanced Defense Sys Flammable arrowhead
US9255774B2 (en) * 2008-06-30 2016-02-09 Battelle Memorial Institute Controlled fragmentation of a warhead shell
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
US8061275B1 (en) * 2010-01-08 2011-11-22 The United States Of America As Represented By The Secretary Of The Army Warhead selectively releasing fragments of varied sizes and shapes
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
US8720342B1 (en) * 2010-03-23 2014-05-13 The United States Of America As Represented By The Secretary Of The Army Low collateral damage fragmentation 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
RU2450239C1 (ru) * 2010-11-18 2012-05-10 Владимир Викторович Черниченко Поражающий элемент кассетного боеприпаса
US8616129B1 (en) 2011-08-19 2013-12-31 The United States Of America As Represented By The Secretary Of The Navy Cartridge actuator and method of manufacture thereof
US9291437B2 (en) * 2012-06-01 2016-03-22 Orbital Atk, Inc. Radial firing warhead system and method
IL222989A (en) * 2012-11-12 2016-02-29 Israel Aerospace Ind Ltd Combat head
WO2015175037A2 (fr) 2014-02-11 2015-11-19 Raytheon Company Munition avec enveloppe extérieure
AT515209B1 (de) 2014-03-14 2015-07-15 Hirtenberger Defence Systems Gmbh & Co Kg Geschoss
US9810513B2 (en) 2014-08-04 2017-11-07 Raytheon Company Munition modification kit and method of modifying munition
US9739583B2 (en) 2014-08-07 2017-08-22 Raytheon Company Fragmentation munition with limited explosive force
US9909848B2 (en) 2015-11-16 2018-03-06 Raytheon Company Munition having penetrator casing with fuel-oxidizer mixture therein
US10066915B1 (en) * 2016-09-21 2018-09-04 The United States Of America As Represented By The Secretary Of The Army Multi-purpose state changing munition
US11226181B2 (en) * 2017-03-06 2022-01-18 Omnitek Partners, L.L.C. High explosive fragmentation mortars
US11454480B1 (en) 2019-06-12 2022-09-27 Corvid Technologies LLC Methods for forming munitions casings and casings and munitions formed thereby
FR3098292B1 (fr) * 2019-07-04 2021-07-23 Cta Int Munition télescopée comprenant un obus
GB202003965D0 (en) * 2020-03-19 2020-05-06 Secr Defence Casing for a fragmentation weapon, fragmentation weapon, and method of manufacture

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FR454818A (fr) * 1912-03-02 1913-07-16 Edoardo Agudio Projectile agissant par ricochet et éclatant à une certaine distance de son point d'arrivée
US3000309A (en) * 1943-01-30 1961-09-19 Zapf Louis Fragmentation projectile
US3566794A (en) * 1958-11-26 1971-03-02 Us Navy Controlled fragmentation of multi-walled warheads
CH485194A (de) * 1968-01-25 1970-01-31 Oerlikon Buehrle Ag Geschoss mit Splittermantel
US4745864A (en) * 1970-12-21 1988-05-24 Ltv Aerospace & Defense Company Explosive fragmentation structure
US4106411A (en) * 1971-01-04 1978-08-15 Martin Marietta Corporation Incendiary fragmentation warhead
US3799054A (en) * 1972-05-08 1974-03-26 Armament Syst Inc Controlled fragmentation explosive device
US3820464A (en) * 1973-03-09 1974-06-28 Us Navy Variable sized fragment explosive projectile
DE2339386B1 (de) * 1973-08-03 1975-01-30 Diehl Fa Sprengladung fuer Geschosse
US4089267A (en) * 1976-09-29 1978-05-16 The United States Of America As Represented By The Secretary Of The Army High fragmentation munition
US4381692A (en) * 1977-05-11 1983-05-03 Quantic Industries, Inc. Method of making an incendiary munition
US4989493A (en) * 1985-10-21 1991-02-05 The United States Of America As Represented By The Secretary Of The Air Force Explosive attenuating structure for use inside missiles and the like
DE3725091A1 (de) * 1987-07-29 1989-02-16 Diehl Gmbh & Co Brandwirkungs-projektil, verfahren zum einbringen der brandmasse in das projektil und vorrichtung zum ausueben des verfahrens
US5054399A (en) * 1988-07-05 1991-10-08 The United States Of America As Represented By The Secretary Of The Air Force Bomb or ordnance with internal shock attenuation barrier

Also Published As

Publication number Publication date
EP0433544A1 (fr) 1991-06-26
DE3940462A1 (de) 1991-06-13
US5131329A (en) 1992-07-21
DE59004778D1 (de) 1994-04-07

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