EP0221218A1 - Sprengkopf mit hintereinanderliegenden Hohlladungen - Google Patents

Sprengkopf mit hintereinanderliegenden Hohlladungen Download PDF

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Publication number
EP0221218A1
EP0221218A1 EP85402097A EP85402097A EP0221218A1 EP 0221218 A1 EP0221218 A1 EP 0221218A1 EP 85402097 A EP85402097 A EP 85402097A EP 85402097 A EP85402097 A EP 85402097A EP 0221218 A1 EP0221218 A1 EP 0221218A1
Authority
EP
European Patent Office
Prior art keywords
charge
front load
military head
caliber
load
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
EP85402097A
Other languages
English (en)
French (fr)
Other versions
EP0221218B1 (de
Inventor
Alain Chaumeau
Eric Crote
Alain Kerdraon
Jean-Paul Ragonnet
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
Delegation Generale pour lArmement
Gouvernement de la Republique Francaise
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
Priority claimed from FR8413633A external-priority patent/FR2569834B1/fr
Application filed by Delegation Generale pour lArmement, Gouvernement de la Republique Francaise filed Critical Delegation Generale pour lArmement
Priority to DE8585402097T priority Critical patent/DE3571272D1/de
Priority to AT85402097T priority patent/ATE44315T1/de
Publication of EP0221218A1 publication Critical patent/EP0221218A1/de
Application granted granted Critical
Publication of EP0221218B1 publication Critical patent/EP0221218B1/de
Expired 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
    • F42B12/04—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
    • 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
    • F42B1/028—Shaped or hollow charges characterised by the form of the liner

Definitions

  • the invention relates to a military head which can be used in particular in shells, rockets and missiles to attack battle tanks, whether their armor is simple, laminated, composite or active.
  • This delay is necessary: - to operate the second load only after destruction of the active protection corresponding to the lifetime of the active shielding. - to avoid the second jet catching up with the second.
  • the optimal delay ⁇ T varies according to, on the one hand the nature and the thickness of the plates constituting the active shielding and on the other hand the angle of incidence of the projectile on the target.
  • An increase in ⁇ T can have the following consequences which are all disadvantages: - increase in the optimal distance of action of the 2nd explosive charge - decrease in projectile speed - the increase in interactions between the two charges.
  • the invention therefore aims to overcome the aforementioned drawbacks, by proposing a military head with shaped charges mounted in tandem and operating in sequence so that the head charge generates a core capable of perforating an active armor without initiating it, second charge formed can then be initiated after a very short time, this short delay being necessary to avoid catching up of the core generated by the first charge by the jet of the second charge, but which can be reduced to a minimum taking into account the non-initiation of the active shielding.
  • the military head is characterized in that the front load generates a nucleus whose impact speed on the target is between 1000 and 2500 m / s and in that the operating delay between the two charges is between 50 and 300 ⁇ s.
  • the front load generates a core whose speed is around 2000 m / s, and the operating delay between the two loads is around 100 ⁇ s.
  • the front load comprises a metallic coating of conical shape with an angle at the apex between 140 ° and 170 ° and more precisely is equal to 150 °, and whose average thickness is between 1% and 2% and more precisely is equal to 1.6% of the caliber of the front load.
  • the front load comprises a metallic coating of revolution which can for example be spherical or ellipsoidal, the ratio of the height to the caliber being between 0.05 and 0.15 and more precisely is equal to 0.1 and whose average thickness is between 1% and 2% and more precisely is equal to 1.8% of the caliber of the front load.
  • the explosive used to charge the front charge is an explosive with a detonation speed of less than 8000 m / s, which can for example be a composite explosive, trinitrotoluene or baratol
  • the operating delay between the front load and the rear load is approximately 100 ⁇ s.
  • This military head comprises an envelope 1 in which are placed two explosive charges 2 and 3 respectively called front charge and rear charge.
  • the front charge 2 is constituted by a mass of explosive 4 limited towards the front by a metallic coating 5, and comprising at the rear a priming device 6 not shown in detail but known to those skilled in the art
  • the coating 5 can be conical, spherical or ellipsoidal and more generally of revolution, but its geometric characteristics must meet the following conditions: - in the case of a conical coating, the angle at the top must be between 140 ° and 170 ° and its average thickness must be between 1% and 2% of the size of the load. In this particular embodiment, the angle at the top is 150 ° and the thickness is equal to 1.6% of the caliber of the load. - in the case of a coating of revolution, such as spherical, or ellipsoidal, the ratio of its height h to its diameter must be between 0.05 and 0.15, the characteristics concerning its thickness being identical to those given above for tapered coatings.
  • the explosive 4 constituting this charge must be a low energy explosive whose detonation speed is less than 8000 m / s such as for example trinitrotoluene, baratol, or a composite explosive.
  • the geometrical characteristics of the coating as well as the nature of the explosive constituting the front charge must be chosen in such a way that the speed of the nucleus relative to the target is less than 2500 m / s, this condition being necessary for the explosive constituting the active shield cannot be initiated.
  • the rear charge is a high performance hollow charge, comprising a conical coating 7 with a closed angle and an explosive 8 which can be highly energetic.
  • This military head also includes a protective screen 9 whose function is to protect the rear load when the front load detonates.
  • a security and arming device 10 is disposed at the rear of the load 3 and transmits the initiation order to the front load via a detonating cord 11 which could, for example, be replaced by a line electric connected to the priming device 6.
  • the detection of the target can be carried out by any means known to those skilled in the art such as a near proximity rocket or by contact.
  • the operating delay between the front and rear charges can be achieved for example using a detonating cord winding, an electronic device or a delay pyrotechnic component. In this particular embodiment, a delay of 100 ⁇ s is used.
  • a particular advantage of this invention resides in its adaption to perforate active armor while offering a lightened military head, the inter-charge protection 9 being able to be reduced taking into account the very short initiation delay between the two charges.

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)
EP85402097A 1984-09-05 1985-10-31 Sprengkopf mit hintereinanderliegenden Hohlladungen Expired EP0221218B1 (de)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE8585402097T DE3571272D1 (en) 1985-10-31 1985-10-31 Shaped-charge war heads in tandem arrangement
AT85402097T ATE44315T1 (de) 1985-10-31 1985-10-31 Sprengkopf mit hintereinanderliegenden hohlladungen.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8413633A FR2569834B1 (fr) 1984-09-05 1984-09-05 Tete militaire a charges formees montees en tandem

Publications (2)

Publication Number Publication Date
EP0221218A1 true EP0221218A1 (de) 1987-05-13
EP0221218B1 EP0221218B1 (de) 1989-06-28

Family

ID=9307438

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85402097A Expired EP0221218B1 (de) 1984-09-05 1985-10-31 Sprengkopf mit hintereinanderliegenden Hohlladungen

Country Status (2)

Country Link
US (1) US4714022A (de)
EP (1) EP0221218B1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2049649A1 (es) * 1992-08-07 1994-04-16 Edb Sa Submunicion antipista

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IL81097A (en) * 1986-12-25 1991-06-10 Israel Defence Two-stage shaped charge projectile
DE3740412C1 (de) * 1987-11-28 1996-04-25 Rheinmetall Ind Gmbh Gefechtskopf
US7493861B1 (en) * 1989-07-24 2009-02-24 The United States Of America As Represented By The Secretary Of The Army Tandem shaped charge warhead having a confined forward charge and a light-weight blast shield
US5078069A (en) * 1990-03-27 1992-01-07 Hughes Aircraft Company Warhead
FR2660427B1 (fr) * 1990-03-29 1993-12-31 Giat Industries Retard d'initiation pour charges formees detonant en sequence.
FR2661493B1 (fr) * 1990-04-27 1992-06-19 Thomson Brandt Armements Systeme de commande de mise a feu avec retards programmables pour projectile comportant au moins une charge militaire.
GB9225589D0 (en) * 1992-12-08 2003-04-16 Royal Ordnance Plc Improvements in or relating to general purpose bombs
RU2142110C1 (ru) * 1998-11-16 1999-11-27 Российский Федеральный Ядерный Центр - Всероссийский Научно-Исследовательский Институт Экспериментальной Физики Кумулятивная боевая часть
RU2156952C1 (ru) * 1999-08-02 2000-09-27 Российский Федеральный Ядерный Центр - Всероссийский Научно-Исследовательский Институт Экспериментальной Физики Кумулятивная боевая часть
GB0102914D0 (en) * 2001-02-06 2001-03-21 Secr Defence Brit Oil well perforator
SE523695C2 (sv) * 2001-06-12 2004-05-11 Saab Ab Ammunitionsanordning, såsom granat eller liknande, lämpad för hålslagning i väggar eller likartade konstruktioner
RU2232971C1 (ru) * 2003-01-20 2004-07-20 Российский Федеральный Ядерный Центр - Всероссийский Научно-Исследовательский Институт Экспериментальной Физики Боеприпас
US6959893B1 (en) * 2003-04-01 2005-11-01 The United States Of America As Represented By The Secretary Of The Army Light fighter lethality seeker projectile
US7078603B2 (en) * 2005-01-31 2006-07-18 Pioneer Hi-Bred International, Inc. Hybrid maize 32R38
US7363862B2 (en) * 2005-05-27 2008-04-29 United States Of America As Represented By The Secretary Of The Army Multi-purpose single initiated tandem warhead
ES2549264T3 (es) * 2006-03-09 2015-10-26 Saab Ab Procedimiento para la reducción de la cantidad de tipos de munición a utilizar y dispositivo de munición
GB2582670B8 (en) * 2019-05-25 2023-10-25 Alford Ip Ltd Improvements in or relating to explosive charges

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3019731A (en) * 1960-02-19 1962-02-06 Advanced Oil Tools Inc Jet perforator for well casings
US3128701A (en) * 1958-07-24 1964-04-14 Western Co Of North America Shaped charge perforating apparatus
FR2147621A5 (en) * 1971-07-23 1973-03-09 Rheinmetall Gmbh Nose for hollow charge projectile - with max penetrating power
GB1500681A (en) * 1969-01-14 1978-02-08 Messerschmitt Boelkow Blohm Warhead for use against armoured targets
FR2425047A1 (fr) * 1978-05-05 1979-11-30 Saint Louis Inst Charge explosive a revetement pour la perforation des blindages
FR2429990A1 (fr) * 1978-06-27 1980-01-25 Saint Louis Inst Charge explosive plate
FR2552870A1 (fr) * 1980-10-24 1985-04-05 France Etat Armement Perfectionnement aux tetes militaires a charges formees montees en tandem
FR2569834A1 (fr) * 1984-09-05 1986-03-07 France Etat Armement Tete militaire a charges formees montees en tandem

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3217647A (en) * 1962-10-04 1965-11-16 Thomanek Franz Rudolf Explosive charge construction
US3358780A (en) * 1965-05-24 1967-12-19 Dresser Ind Cumulative shaped charges
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
US3750582A (en) * 1971-09-03 1973-08-07 Us Army Projectile with differential tandem shaped charges

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3128701A (en) * 1958-07-24 1964-04-14 Western Co Of North America Shaped charge perforating apparatus
US3019731A (en) * 1960-02-19 1962-02-06 Advanced Oil Tools Inc Jet perforator for well casings
GB1500681A (en) * 1969-01-14 1978-02-08 Messerschmitt Boelkow Blohm Warhead for use against armoured targets
FR2147621A5 (en) * 1971-07-23 1973-03-09 Rheinmetall Gmbh Nose for hollow charge projectile - with max penetrating power
FR2425047A1 (fr) * 1978-05-05 1979-11-30 Saint Louis Inst Charge explosive a revetement pour la perforation des blindages
FR2429990A1 (fr) * 1978-06-27 1980-01-25 Saint Louis Inst Charge explosive plate
FR2552870A1 (fr) * 1980-10-24 1985-04-05 France Etat Armement Perfectionnement aux tetes militaires a charges formees montees en tandem
FR2569834A1 (fr) * 1984-09-05 1986-03-07 France Etat Armement Tete militaire a charges formees montees en tandem

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2049649A1 (es) * 1992-08-07 1994-04-16 Edb Sa Submunicion antipista

Also Published As

Publication number Publication date
US4714022A (en) 1987-12-22
EP0221218B1 (de) 1989-06-28

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