EP1225416A1 - Elément de munition explosive à fragmentation - Google Patents
Elément de munition explosive à fragmentation Download PDFInfo
- Publication number
- EP1225416A1 EP1225416A1 EP02290072A EP02290072A EP1225416A1 EP 1225416 A1 EP1225416 A1 EP 1225416A1 EP 02290072 A EP02290072 A EP 02290072A EP 02290072 A EP02290072 A EP 02290072A EP 1225416 A1 EP1225416 A1 EP 1225416A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- explosive
- explosive charge
- revolution
- axis
- recess
- 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
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42C—AMMUNITION FUZES; ARMING OR SAFETY MEANS THEREFOR
- F42C19/00—Details of fuzes
- F42C19/08—Primers; Detonators
- F42C19/0838—Primers or igniters for the initiation or the explosive charge in a warhead
-
- 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 present invention is in the field military, more particularly in that of Explosive cluster munitions, such as in particular bombs, with or without controlled fragmentation, intended for example for anti-runway operations, anti-bunkers or anti-vehicles (ships, tanks, armored vehicles, etc.).
- Explosive cluster munitions such as in particular bombs, with or without controlled fragmentation, intended for example for anti-runway operations, anti-bunkers or anti-vehicles (ships, tanks, armored vehicles, etc.).
- the envelope breaks by forming splinters whose destructive effects are wanted. These effects are all the more intense that the burst speed is high.
- the channel can in particular be only cylindroid and generators may not be that approximately parallel to the axis of revolution of the loading, which itself may not be rigorously of revolution.
- GB 2 318 631 describes a cylindrical element essentially explosive ordnance on the one hand, a hollow annular steel wall in which is drowned an explosive load and on the other hand a multi-point ignition system of the explosive charge.
- the transition to detonation after initiation can be of the Transition-Shock-Detonation (TCD) type or of the Transition to Delayed Detonation type, also called “unknown" transition to the detonation (TXD).
- TCD Transition-Shock-Detonation
- TXD Transition to Delayed Detonation
- TCD Transition-Shock-Detonation
- TXD Transition to Delayed Detonation
- molten cast explosives such as those based on TNT (hexolites, octolites, etc.), and the plastic binder explosives used by compression.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Portable Nailing Machines And Staplers (AREA)
- Disintegrating Or Milling (AREA)
- Drilling And Exploitation, And Mining Machines And Methods (AREA)
- Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
- Pressure Welding/Diffusion-Bonding (AREA)
- Lubricants (AREA)
- Radar Systems Or Details Thereof (AREA)
- Medicines Containing Plant Substances (AREA)
- Engine Equipment That Uses Special Cycles (AREA)
- Inorganic Compounds Of Heavy Metals (AREA)
Abstract
Description
- une enveloppe, de préférence métallique, susceptible de générer des éclats, ayant un axe de révolution,
- un chargement explosif contenu dans ladite enveloppe et revêtu par elle, c'est-à-dire enrobé par ladite enveloppe, ayant le même axe de révolution que celui de l'enveloppe, et comportant un évidement en forme de canal cylindrique dont les génératrices sont parallèles à l'axe de révolution du chargement explosif,
- un moyen unique d'amorçage dudit chargement explosif.
Le chargement explosif ne comporte pas d'évidement en forme de canal cylindrique.
Par ailleurs, le moyen d'amorçage du chargement se situe au niveau d'une face latérale de ce chargement, et non pas à sa périphérie.
Le tir d'une balle perforante en acier représente un autre exemple de moyen d'amorçage ponctuel selon l'invention.
Selon la transition TCD, l'amorçage génère une onde de choc dont le niveau en pression et en durée de maintien est supérieur au seuil d'aptitude à la détonation du matériau énergétique qui est une caractéristique de ce matériau.
Selon la transition TXD, dont la durée est beaucoup plus longue, l'amorçage génère une onde de choc dont le niveau en pression et en durée de maintien est inférieur au seuil de fonctionnement TCD précité. Cette onde de choc peu réactive endommage physiquement le matériau, puis, après réflexion sur la paroi de la munition et combinaison avec une autre onde, revient en surpression sur le matériau endommagé, ce qui provoque sa décomposition chimique et sa détonation.
De façon particulièrement inattendue, on a constaté que cette variante permettait d'accroítre encore plus la vitesse des éclats obtenus comparativement à la variante d'amorçage avec transition vers la détonation de type TCD.
Par « basse » densité, il faut comprendre une densité nettement inférieure à celle du matériau énergétique constituant le chargement explosif, c'est-à-dire inférieure à environ 70% de la densité du matériau énergétique.
Comme exemples de tels matériaux inertes de basse densité, on peut citer les mousses et les caoutchoucs ayant une densité comprise entre environ 0,1 g/cm3 et environ 1,3 g/cm3.
Les explosifs composites sont particulièrement préférés comme explosifs solides, c'est à dire des explosifs obtenus à partir de compositions explosives à liant plastique mises en oeuvre par coulée puis polymérisation, constituées d'un liant plastique chargé contenant au moins une charge explosive nitrée organique comme l'hexogène ou l'octogène. Comme exemples d'autres explosifs solides convenant bien dans le cadre de la présente invention, on peut citer les explosifs coulés fondus comme ceux à base de TNT (hexolites, octolites, etc...), et les explosifs à liant plastique mis en oeuvre par compression.
- une enveloppe susceptible de générer des éclats, ayant un axe de révolution,
- un chargement explosif enrobé dans ladite enveloppe, ayant le même axe de révolution que celui de l'enveloppe, et comportant un évidement en forme de canal cylindrique dont les génératrices sont parallèles à l'axe de révolution du chargement explosif.
- une enveloppe 1 métallique, cylindrique, pleine, susceptible de générer des éclats, ayant un axe de révolution 2,
- un chargement explosif 3, contenu dans ladite
enveloppe 1 et revêtu par ladite enveloppe 1. Ce
chargement explosif 3 est donc cylindrique et possède
le même axe de révolution 2 que celui de l'enveloppe
1.
- Le chargement explosif 3 comporte, sur toute sa longueur, un évidement 5 en forme de canal cylindrique dont les génératrices 6, 7 sont parallèles à l'axe de révolution 2 du chargement explosif 3 et dont la paroi est constituée par le chargement explosif 3.
- L'évidement 5, qui transperce le chargement explosif 3, est un canal cylindrique de révolution dont l'axe coïncide avec l'axe de révolution 2 du chargement explosif 3.
- un moyen unique d'amorçage 4 du chargement explosif 3, permettant d'assurer un amorçage périphérique du chargement, en un seul point.
- un mécanisme de transition vers la détonation de type TCD.
- Une expansion quasi hémisphérique de l'enveloppe 1 en acier.
- Une vitesse de relèvement de l'enveloppe 1 en fonction du temps, mesurée au niveau de la génératrice 11 opposée à la génératrice 8 sur laquelle se produit l'amorçage, permettant de déduire une vitesse initiale des éclats de 2870 m/s.
Claims (10)
- Elément de munition explosive à fragmentation comprenant :une enveloppe (1) susceptible de générer des éclats, ayant un axe de révolution (2),un chargement explosif (3) enrobé par ladite enveloppe (1), ayant le même axe de révolution (2) que celui de l'enveloppe (1), et comportant un évidement (5) en forme de canal cylindrique dont les génératrices (6,7) sont parallèles à l'axe de révolution (2) du chargement explosif (3),un moyen unique d'amorçage (4) dudit chargement explosif (3),
- Elément de munition explosive selon la revendication 1, caractérisé en ce que l'enveloppe (1) génératrice d'éclats et le chargement explosif (3) ont une forme cylindrique ou ogivale.
- Elément de munition explosive selon la revendication 1, caractérisé en ce que l'évidement (5) en forme de canal cylindrique est situé en position centrale de telle sorte que l'axe de révolution (2) du chargement explosif (3) traverse l'évidement (5).
- Elément de munition explosive selon la revendication 1, caractérisé en ce que l'évidement (5) est un canal cylindrique de révolution dont l'axe coïncide avec l'axe de révolution (2) du chargement explosif (3).
- Elément de munition explosive selon la revendication (1), caractérisé en ce que l'évidement (5) transperce le chargement explosif (3).
- Elément de munition explosive selon la revendication (1), caractérisé en ce que le rapport entre la section du chargement explosif (3) et la section de l'évidement (5) est compris entre 5 et 100.
- Elément de munition explosive selon la revendication 1, caractérisé en ce que l'évidement (5) contient un matériau inerte de basse densité.
- Elément de munition explosive selon la revendication 1, caractérisé en ce que le moyen d'amorçage (4) est tel qu'il puisse générer une onde de choc dont le niveau en pression et en durée de maintien est inférieur au seuil d'aptitude à la détonation du chargement explosif (3).
- Procédé permettant d'accroítre la vitesse des éclats obtenus lors de la détonation d'un élément de munition explosive à fragmentation comprenant :une enveloppe (1) susceptible de générer des éclats ayant un axe de révolution (2),un chargement explosif (3) enrobé par ladite enveloppe (1), ayant le même axe de révolution (2) que celui de l'enveloppe (1), et comportant un évidement (5) en forme de canal cylindrique dont les génératrices (6,7) sont parallèles à l'axe de révolution (2) du chargement explosif (3),
- Procédé selon la revendication 9, caractérisé en ce que l'amorçage du chargement explosif (3) génère une onde de choc dont le niveau en pression et en durée de maintien est inférieur au seuil d'aptitude à la détonation du chargement explosif (3).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0100740 | 2001-01-19 | ||
FR0100740A FR2819883B1 (fr) | 2001-01-19 | 2001-01-19 | Element de munition explosive a fragmentation |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1225416A1 true EP1225416A1 (fr) | 2002-07-24 |
EP1225416B1 EP1225416B1 (fr) | 2006-09-27 |
Family
ID=8859026
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP02290072A Expired - Lifetime EP1225416B1 (fr) | 2001-01-19 | 2002-01-11 | Elément de munition explosive à fragmentation |
Country Status (11)
Country | Link |
---|---|
US (1) | US6615738B2 (fr) |
EP (1) | EP1225416B1 (fr) |
AT (1) | ATE340986T1 (fr) |
CA (1) | CA2367299C (fr) |
DE (1) | DE60214912T2 (fr) |
DK (1) | DK1225416T3 (fr) |
ES (1) | ES2272646T3 (fr) |
FR (1) | FR2819883B1 (fr) |
IL (1) | IL147548A (fr) |
NO (1) | NO320817B1 (fr) |
PT (1) | PT1225416E (fr) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3002542A1 (fr) * | 2014-10-01 | 2016-04-06 | TDW Gesellschaft für verteidigungstechnische Wirksysteme mbH | Dispositif et procede de formation de fragmentation a l'aide de charges nucleaires pouvant etre reactivees par temperature |
WO2016076918A1 (fr) * | 2014-11-11 | 2016-05-19 | Raytheon Company | Système de transfert de choc de fusée |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB0719982D0 (en) * | 2007-10-12 | 2007-11-21 | Portsmouth Aviat Ltd | Bombs |
US8770110B2 (en) | 2012-03-16 | 2014-07-08 | Raytheon Company | Selectable yield warhead and method |
US11454480B1 (en) | 2019-06-12 | 2022-09-27 | Corvid Technologies LLC | Methods for forming munitions casings and casings and munitions formed thereby |
Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1453815A1 (de) * | 1965-12-10 | 1969-02-06 | Boelkow Gmbh | Verfahren zum Ausloesen der Sprengladung bei einem Sprengladungsgeschoss |
US3820461A (en) * | 1970-02-20 | 1974-06-28 | D Silvia | Initiation aimed explosive devices |
US4579059A (en) | 1984-03-27 | 1986-04-01 | Abraham Flatau | Tubular projectile having an explosive material therein |
US4662281A (en) * | 1984-09-28 | 1987-05-05 | The Boeing Company | Low velocity disc pattern fragment warhead |
FR2678723A1 (fr) * | 1981-06-26 | 1993-01-08 | France Etat | Projectile explosif, notamment anti-aerien, comprenant une charge a effet directionnel rotatif. |
FR2679640A1 (fr) | 1991-07-26 | 1993-01-29 | Thomson Brandt Armements | Appareillage d'amorcage multipoints pour conformateur d'onde de detonation. |
FR2748102A1 (fr) | 1996-04-30 | 1997-10-31 | Tda Armements Sas | Munition a fragmentation de symetrie equatoriale d'expulsion |
GB2318631A (en) | 1980-10-24 | 1998-04-29 | Secr Defence | Warheads |
FR2778978A1 (fr) | 1996-11-22 | 1999-11-26 | Diehl Gmbh & Co | Projectile d'artillerie |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3714897A (en) * | 1968-04-04 | 1973-02-06 | Us Navy | Directed warhead |
US4216720A (en) * | 1974-05-30 | 1980-08-12 | The United States Of America As Represented By The Secretary Of The Navy | Rod-fragment controlled-motion warhead (U) |
US4781117A (en) * | 1987-07-20 | 1988-11-01 | The United States Of America As Represented By The Secretary Of The Navy | Fragmentable warhead of modular construction |
DE4139372C1 (de) * | 1991-11-29 | 1995-03-02 | Deutsche Aerospace | Splittergefechtskopf |
-
2001
- 2001-01-19 FR FR0100740A patent/FR2819883B1/fr not_active Expired - Fee Related
-
2002
- 2002-01-07 US US10/036,365 patent/US6615738B2/en not_active Expired - Lifetime
- 2002-01-10 IL IL147548A patent/IL147548A/en not_active IP Right Cessation
- 2002-01-11 ES ES02290072T patent/ES2272646T3/es not_active Expired - Lifetime
- 2002-01-11 AT AT02290072T patent/ATE340986T1/de not_active IP Right Cessation
- 2002-01-11 DE DE60214912T patent/DE60214912T2/de not_active Expired - Lifetime
- 2002-01-11 PT PT02290072T patent/PT1225416E/pt unknown
- 2002-01-11 EP EP02290072A patent/EP1225416B1/fr not_active Expired - Lifetime
- 2002-01-11 DK DK02290072T patent/DK1225416T3/da active
- 2002-01-16 CA CA002367299A patent/CA2367299C/fr not_active Expired - Fee Related
- 2002-01-16 NO NO20020245A patent/NO320817B1/no not_active IP Right Cessation
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1453815A1 (de) * | 1965-12-10 | 1969-02-06 | Boelkow Gmbh | Verfahren zum Ausloesen der Sprengladung bei einem Sprengladungsgeschoss |
US3820461A (en) * | 1970-02-20 | 1974-06-28 | D Silvia | Initiation aimed explosive devices |
GB2318631A (en) | 1980-10-24 | 1998-04-29 | Secr Defence | Warheads |
FR2678723A1 (fr) * | 1981-06-26 | 1993-01-08 | France Etat | Projectile explosif, notamment anti-aerien, comprenant une charge a effet directionnel rotatif. |
US4579059A (en) | 1984-03-27 | 1986-04-01 | Abraham Flatau | Tubular projectile having an explosive material therein |
US4662281A (en) * | 1984-09-28 | 1987-05-05 | The Boeing Company | Low velocity disc pattern fragment warhead |
FR2679640A1 (fr) | 1991-07-26 | 1993-01-29 | Thomson Brandt Armements | Appareillage d'amorcage multipoints pour conformateur d'onde de detonation. |
FR2748102A1 (fr) | 1996-04-30 | 1997-10-31 | Tda Armements Sas | Munition a fragmentation de symetrie equatoriale d'expulsion |
FR2778978A1 (fr) | 1996-11-22 | 1999-11-26 | Diehl Gmbh & Co | Projectile d'artillerie |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3002542A1 (fr) * | 2014-10-01 | 2016-04-06 | TDW Gesellschaft für verteidigungstechnische Wirksysteme mbH | Dispositif et procede de formation de fragmentation a l'aide de charges nucleaires pouvant etre reactivees par temperature |
US9982979B2 (en) | 2014-10-01 | 2018-05-29 | TDW Gesellschaft fuer verteidgungstechnische Wirksysteme mbH | Device and method for controlled fragmentation by means of temperature-activatable notch charges |
WO2016076918A1 (fr) * | 2014-11-11 | 2016-05-19 | Raytheon Company | Système de transfert de choc de fusée |
US9347754B1 (en) | 2014-11-11 | 2016-05-24 | Raytheon Company | Fuze shock transfer system |
Also Published As
Publication number | Publication date |
---|---|
DE60214912D1 (de) | 2006-11-09 |
EP1225416B1 (fr) | 2006-09-27 |
FR2819883B1 (fr) | 2003-07-18 |
US6615738B2 (en) | 2003-09-09 |
DK1225416T3 (da) | 2007-01-29 |
IL147548A0 (en) | 2002-08-14 |
NO20020245D0 (no) | 2002-01-16 |
FR2819883A1 (fr) | 2002-07-26 |
PT1225416E (pt) | 2007-01-31 |
DE60214912T2 (de) | 2007-07-12 |
NO20020245L (no) | 2002-07-22 |
CA2367299C (fr) | 2005-09-13 |
CA2367299A1 (fr) | 2002-07-19 |
NO320817B1 (no) | 2006-01-30 |
ATE340986T1 (de) | 2006-10-15 |
IL147548A (en) | 2007-09-20 |
US20020096080A1 (en) | 2002-07-25 |
ES2272646T3 (es) | 2007-05-01 |
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