EP0561085A1 - Hohlladung zum Durchschlagen einer mit einer reaktiven Vorpanzerung versehenen Panzerplatte - Google Patents

Hohlladung zum Durchschlagen einer mit einer reaktiven Vorpanzerung versehenen Panzerplatte Download PDF

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Publication number
EP0561085A1
EP0561085A1 EP92400750A EP92400750A EP0561085A1 EP 0561085 A1 EP0561085 A1 EP 0561085A1 EP 92400750 A EP92400750 A EP 92400750A EP 92400750 A EP92400750 A EP 92400750A EP 0561085 A1 EP0561085 A1 EP 0561085A1
Authority
EP
European Patent Office
Prior art keywords
charge
cavity
preload
wave
main
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
EP92400750A
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English (en)
French (fr)
Other versions
EP0561085B1 (de
Inventor
Jean Cauchetier
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.)
TDA Armements SAS
Original Assignee
Thomson Brandt Armements 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 Thomson Brandt Armements SA filed Critical Thomson Brandt Armements SA
Priority to DE1992625579 priority Critical patent/DE69225579T2/de
Publication of EP0561085A1 publication Critical patent/EP0561085A1/de
Application granted granted Critical
Publication of EP0561085B1 publication Critical patent/EP0561085B1/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
    • F42B1/00—Explosive charges characterised by form or shape but not dependent on shape of container
    • F42B1/02—Shaped or hollow charges
    • 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
    • F42B12/04—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect of armour-piercing type
    • F42B12/10—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect of armour-piercing type with shaped or hollow charge
    • F42B12/16—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect of armour-piercing type with shaped or hollow charge in combination with an additional projectile or charge, acting successively on the target
    • F42B12/18—Hollow charges in tandem arrangement

Definitions

  • the subject of the present invention is an explosive device with a hollow charge intended for the perforation of a shield protected by an active pre-armor.
  • a hollow charge consists essentially of an explosive charge of revolution in which an open cavity has been provided, covered with a metallic coating, and of an initiating device also having a symmetry of revolution.
  • the metallic coating of the cavity projects onto the axis of revolution of the charge; this results on the one hand from a metal jet, which moves at very high speed on this axis, and, on the other hand, a metallic core animated with a lower speed on this same axis, in the same direction or opposite to the previous roll.
  • an active shield is usually designated by active screening, placed in front of a traditional shield, then called main shield; this auxiliary armor consists of two plates generally of steel (a few millimeters thick) between which is sandwiched a relatively thin layer of explosive.
  • the small multilayer pre-shield that is to say comprise a plurality of such sandwiches.
  • the purpose of pre-armor is that, upon impact of a projectile, the head of the latter initiates the layer of explosive by penetrating it. The explosion then projects the steel plates towards the projectile, disturbing the latter and reducing its effectiveness.
  • the steel plates of the pre-armor disturb the jet of the hollow charge to the point of generally making it lose most of its perforating power. against the main armor.
  • Such active armor plating is frequently used for the protection of armored vehicles, such as battle tanks.
  • the problem for manufacturers of anti-tank ammunition is therefore as follows: to pierce the main armor, it is preferable to use a hollow charge whose very great piercing power is capable of piercing the main armor which is generally very thick, but, as mentioned above, the shaped charges are particularly vulnerable to the action of active pre-armor.
  • a first solution consists in greatly increasing the nominal perforating power of the hollow charge so that its residual perforating power (after disturbance by the pre-shielding) is sufficient. This process is simple but very expensive in calibrating the shaped charge.
  • a wave shaper also called a screen
  • the function of which is to deflect the detonation wave and make it toric.
  • the shape of the screen is determined in order to that the detonation wave is deflected without substantial loss of power, and in order to obtain the desired angle of incidence of this wave on the lining of the cavity.
  • the object of the present invention is to reduce the longitudinal dimensions of an explosive device with a hollow charge, of the type comprising a main charge with a wave former and a preload for piercing an active pre-armor.
  • the preload is a hollow charge placed at the top of the main hollow charge and separated from the latter by wave transmitting means, preferably constituted by a third hollow charge arranged in reverse, the preload further ensuring the function waveform for the main load.
  • the subject of the invention is an explosive device with a hollow charge as defined by claim 1.
  • an explosive device comprising an explosive charge 4 contained in an envelope 1 and in which an open cavity has been formed comprising three parts, marked successively 10, 20 and 30 from the explosive charge towards the opening; the cavity is covered with a layer marked, in the same way successively 13, 23 and 33.
  • a priming device 5 is arranged, comprising for example a detonator 51 and an initiation charge 52, initiated by the detonator 51 and having the function of transmitting the detonation to the load 4.
  • the assembly has a symmetry of revolution about a longitudinal axis XX.
  • the detonator When the detonator goes into action, it creates a detonation wave, via the initiation charge 52, in the explosive charge 4.
  • the detonation wave propagates in the preload part (I) of the device, causing the formation, from the coating 13, d '' a very fast jet and a slower nucleus, propagating on the XX axis.
  • the jet is intended to perforate an active pre-armor without initiating it.
  • Perforation without initiation is obtained by limiting the energy transmitted by the jet to the explosive of the pre-shielding per unit area, the energy of the jet being in particular a function of the nature of the coating, its mass and the speed of the jet.
  • a sparse material is used for the coating, for example a plastic material of nylon type with, for the hollow charge parameters such that they give the jet a relatively high speed, so that there is no no risk of collision between the preload jet and that of the main charge.
  • the detonation wave arriving at the base 11 of the coating 13 is in the same way as a wave having bypassed a conventional wave shaper whose preload I therefore fulfills the function.
  • the wave transmitter II is intended to conduct the detonation wave to the top 32 of the main charge III.
  • This transmitter functions as a hollow charge but the initiation of which is opposite, that is to say that it is carried out from its base 21. It therefore forms, from the coating 23, a jet propagating on the axis XX towards the rear of the device, jet which is lost, and a core having the effect of closing the apex 32 of the main hollow charge III.
  • the coating 23 is not essential; in fact, closing the top 32 is not itself essential in principle for the operation of the main load; However, it has the advantage of opposing the passage of the core of the preload I which, for its part, would be likely to disturb the formation of the jet of the main charge.
  • the coating 23 can be made of a metallic material, for example mild steel or copper.
  • the cavity 20 of the wave transmitter has been shown as frustoconical but that its shape may be other: tulip or trumpet for example; it can also have a greater or lesser apex angle, up to the cylindrical shape the angle depending on the diameters chosen for the base 11 of the preload and the apex 32 of the main load.
  • the detonation wave then reaches the main hollow charge III, which then functions as a hollow charge provided with a wave shaper.
  • the coating 33 can be, conventionally, metallic, for example of copper.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
  • Radar Systems Or Details Thereof (AREA)
EP92400750A 1988-11-15 1992-03-20 Verfahren zum Verwenden einer Hohlladung zum Durchschlagen einer mit einer reaktiven Vorpanzerung versehenen Panzerplatte Expired - Lifetime EP0561085B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE1992625579 DE69225579T2 (de) 1992-03-20 1992-03-20 Verfahren zum Verwenden einer Hohlladung zum Durchschlagen einer mit einer reaktiven Vorpanzerung versehenen Panzerplatte

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR888814798A FR2671618B1 (fr) 1988-11-15 1988-11-15 Dispositif explosif a charge creuse destine a la perforation d'un blindage protege par un preblindage actif.
US08/095,687 US5394804A (en) 1988-11-15 1993-07-21 Explosive device with a hollow charge, designed for penetrating armor protected by active primary armor

Publications (2)

Publication Number Publication Date
EP0561085A1 true EP0561085A1 (de) 1993-09-22
EP0561085B1 EP0561085B1 (de) 1998-05-20

Family

ID=26226988

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92400750A Expired - Lifetime EP0561085B1 (de) 1988-11-15 1992-03-20 Verfahren zum Verwenden einer Hohlladung zum Durchschlagen einer mit einer reaktiven Vorpanzerung versehenen Panzerplatte

Country Status (3)

Country Link
US (1) US5394804A (de)
EP (1) EP0561085B1 (de)
FR (1) FR2671618B1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2750205A1 (fr) * 1996-06-21 1997-12-26 Tda Armements Sas Charge generatrice de noyau formant un long projectile
WO2009126087A1 (en) * 2008-04-08 2009-10-15 Totalförsvarets Forskningsinstitut Shaped charge and shaped charge liner for a shaped charge

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6105505A (en) * 1998-06-17 2000-08-22 Lockheed Martin Corporation Hard target incendiary projectile
USH1930H1 (en) * 1998-07-15 2001-01-02 The United States Of America As Represented By The Secretary Of The Navy Precursor warhead attachment for an anti-armor rocket
WO2002001140A1 (fr) * 2000-06-29 2002-01-03 Alexander Maximovich Isakov Procede de destruction de cible blindee et dispositif correspondant
US6983698B1 (en) * 2003-04-24 2006-01-10 The United States Of America As Represented By The Secretary Of The Army Shaped charge explosive device and method of making same
DK1851500T3 (da) * 2005-02-23 2009-08-03 Armaments Corp Of South Africa Formet ladningsindretning og fremgangsmåde til beskadigelse af et mål
USH2259H1 (en) 2008-11-26 2011-07-05 The United States Of America As Represented By The Secretary Of The Navy Yield enhancing device and method of use
DE112013007251T5 (de) * 2013-07-19 2016-03-31 Halliburton Energy Services, Inc. Hohlladungseinlage mit Falz um die Öffnung
CN104897012B (zh) * 2015-06-23 2017-01-04 西安近代化学研究所 一种轻气破甲战斗部装药
CA3163529A1 (en) 2020-01-21 2021-07-29 Victor Bjorkgren Shaped charge assembly
RU2742438C1 (ru) * 2020-08-14 2021-02-05 Константин Владимирович Костенюк Каретка канатной дороги - тросоход

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB645611A (en) * 1943-08-10 1950-11-01 Ici Ltd Improvements in or relating to devices intended to effect the penetration of an object by the detonation of an explosive charge on the exterior thereof, for military andlike uses
FR1273684A (fr) * 1959-11-17 1961-10-13 Rheinmetall Gmbh Charge creuse, ou projectile à charge creuse, avec chemise intérieure
US3416449A (en) * 1966-12-07 1968-12-17 Army Usa Tandem effect anti-tank projectile
US4004515A (en) * 1971-01-25 1977-01-25 The United States Of America As Represented By The Secretary Of The Navy Sequential jet shaped charge
GB2039008A (en) * 1979-01-05 1980-07-30 Luchaire Sa Improved tandem hollow explosive charges
FR2583156A1 (fr) * 1985-06-07 1986-12-12 Thomson Brandt Armements Tete a charge creuse destinee a la perforation des blindages proteges par des preblindages actifs
EP0252385A1 (de) * 1986-07-05 1988-01-13 DIEHL GMBH & CO. Zylindrische Hohlladung mit einer tulpenförmigen Einlage
DE2816528C1 (de) * 1978-04-17 1991-01-03 Rheinmetall Gmbh Doppelhohlladung in koaxialer Tandemanordnung,insbesondere fuer panzerbrechende Projektile

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1161445A (fr) * 1956-08-30 1958-08-29 Perfectionnements aux caractéristiques et à la constitution des charges creuses
US2984307A (en) * 1957-09-27 1961-05-16 Schlumberger Well Surv Corp Cutting apparatus
US3215074A (en) * 1963-06-13 1965-11-02 Exxon Production Research Co Apparatus for well drilling operations with explosives
US3750582A (en) * 1971-09-03 1973-08-07 Us Army Projectile with differential tandem shaped charges
US4982665A (en) * 1973-11-29 1991-01-08 The United States Of America As Represented By The Secretary Of The Navy Shaped charge
FR2410243A1 (fr) * 1977-11-24 1979-06-22 Serat Perfectionnements apportes aux charges creuses
US4359943A (en) * 1980-09-02 1982-11-23 The United States Of America As Represented By The Secretary Of The Army Shaped charge warhead including shock wave forming surface

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB645611A (en) * 1943-08-10 1950-11-01 Ici Ltd Improvements in or relating to devices intended to effect the penetration of an object by the detonation of an explosive charge on the exterior thereof, for military andlike uses
FR1273684A (fr) * 1959-11-17 1961-10-13 Rheinmetall Gmbh Charge creuse, ou projectile à charge creuse, avec chemise intérieure
US3416449A (en) * 1966-12-07 1968-12-17 Army Usa Tandem effect anti-tank projectile
US4004515A (en) * 1971-01-25 1977-01-25 The United States Of America As Represented By The Secretary Of The Navy Sequential jet shaped charge
DE2816528C1 (de) * 1978-04-17 1991-01-03 Rheinmetall Gmbh Doppelhohlladung in koaxialer Tandemanordnung,insbesondere fuer panzerbrechende Projektile
GB2039008A (en) * 1979-01-05 1980-07-30 Luchaire Sa Improved tandem hollow explosive charges
FR2583156A1 (fr) * 1985-06-07 1986-12-12 Thomson Brandt Armements Tete a charge creuse destinee a la perforation des blindages proteges par des preblindages actifs
EP0252385A1 (de) * 1986-07-05 1988-01-13 DIEHL GMBH & CO. Zylindrische Hohlladung mit einer tulpenförmigen Einlage

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2750205A1 (fr) * 1996-06-21 1997-12-26 Tda Armements Sas Charge generatrice de noyau formant un long projectile
EP0814314A1 (de) * 1996-06-21 1997-12-29 Tda Armements S.A.S. Langprojektilbildende explosive Ladung
WO2009126087A1 (en) * 2008-04-08 2009-10-15 Totalförsvarets Forskningsinstitut Shaped charge and shaped charge liner for a shaped charge

Also Published As

Publication number Publication date
US5394804A (en) 1995-03-07
EP0561085B1 (de) 1998-05-20
FR2671618A1 (fr) 1992-07-17
FR2671618B1 (fr) 1994-03-04

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