EP0561085A1 - Hohlladung zum Durchschlagen einer mit einer reaktiven Vorpanzerung versehenen Panzerplatte - Google Patents
Hohlladung zum Durchschlagen einer mit einer reaktiven Vorpanzerung versehenen Panzerplatte Download PDFInfo
- 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
Links
- 239000002360 explosive Substances 0.000 claims abstract description 27
- 230000036316 preload Effects 0.000 claims description 21
- 239000011248 coating agent Substances 0.000 claims description 15
- 238000000576 coating method Methods 0.000 claims description 15
- 230000000977 initiatory effect Effects 0.000 claims description 13
- 238000005474 detonation Methods 0.000 claims description 10
- 230000037452 priming Effects 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 5
- 241000722921 Tulipa gesneriana Species 0.000 claims description 3
- 239000004033 plastic Substances 0.000 claims description 2
- 239000011247 coating layer Substances 0.000 claims 2
- 230000005540 biological transmission Effects 0.000 claims 1
- 239000010410 layer Substances 0.000 claims 1
- 229910000831 Steel Inorganic materials 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 230000001629 suppression Effects 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000008030 elimination Effects 0.000 description 2
- 238000003379 elimination reaction Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000001902 propagating effect Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 241001625917 Aulostomidae Species 0.000 description 1
- 239000004429 Calibre Substances 0.000 description 1
- 229910001209 Low-carbon steel Inorganic materials 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- 240000008042 Zea mays Species 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 238000012217 deletion Methods 0.000 description 1
- 230000037430 deletion Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 230000000116 mitigating effect Effects 0.000 description 1
- 230000003472 neutralizing effect Effects 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
Images
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)
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)
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)
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)
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)
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 |
-
1988
- 1988-11-15 FR FR888814798A patent/FR2671618B1/fr not_active Expired - Fee Related
-
1992
- 1992-03-20 EP EP92400750A patent/EP0561085B1/de not_active Expired - Lifetime
-
1993
- 1993-07-21 US US08/095,687 patent/US5394804A/en not_active Expired - Fee Related
Patent Citations (8)
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)
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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