EP2327952A1 - Tandem shaped charge warhead - Google Patents
Tandem shaped charge warhead Download PDFInfo
- Publication number
- EP2327952A1 EP2327952A1 EP20100290614 EP10290614A EP2327952A1 EP 2327952 A1 EP2327952 A1 EP 2327952A1 EP 20100290614 EP20100290614 EP 20100290614 EP 10290614 A EP10290614 A EP 10290614A EP 2327952 A1 EP2327952 A1 EP 2327952A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- screen
- load
- cylindrical zone
- interposed
- charge
- 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
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- 239000000463 material Substances 0.000 claims abstract description 6
- 230000000977 initiatory effect Effects 0.000 claims description 12
- 229910052751 metal Inorganic materials 0.000 claims description 8
- 239000002184 metal Substances 0.000 claims description 8
- 239000007787 solid Substances 0.000 claims description 5
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 230000001737 promoting effect Effects 0.000 claims 1
- 239000007789 gas Substances 0.000 description 9
- 230000000694 effects Effects 0.000 description 7
- 238000000576 coating method Methods 0.000 description 6
- 239000011248 coating agent Substances 0.000 description 4
- 230000035939 shock Effects 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 238000013016 damping Methods 0.000 description 2
- 239000002360 explosive Substances 0.000 description 2
- 238000005192 partition Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000005474 detonation Methods 0.000 description 1
- 230000001627 detrimental effect Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 239000006262 metallic foam Substances 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 229920002994 synthetic fiber Polymers 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
- 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 technical field of the invention is that of the military heads comprising formed charges mounted in tandem.
- tandem charges are well known. They combine a front formed load and a rear formed load which are separated from each other by intercharging protection means.
- the charges are initiated in sequence with a delay of the order of a few hundred microseconds or even of the order of a millisecond between the two charges.
- tandem loads can counter the shields equipped with reactive overprotection.
- the front load makes it possible to initiate the reactive shielding, and the rear charge perforates the main shield once it is no longer protected by its reactive protection.
- the known charges all include an intercharging protection which makes it possible to protect the rear charge during the detonation of the front load.
- This protection most often comprises a screen, more or less solid, which is secured to the envelope of the load and the vents arranged in the case of the load and which allow to radially evacuate the gases generated by the initiation front load.
- the patent FR2540238 thus describes a tandem load head in which an intercharge protection is made in the form of one or more partitions integral with the outer wall of the military head.
- the wall is also weakened by streaks, which allows it to burst under the effect of the shock wave.
- Such protection is particularly cumbersome, the multiplication of screens and fragmentable areas leading to the elongation of the intercharging space.
- this patent describes a metal disc interposed between the front sleeve and the deformable tube, this thin disc has little effect in absorbing the impact but only prevents the penetration of gas or splinters inside the tube. deformable.
- the patent EP1531316 describes a tandem head in which the front load and the rear load are separated by a wall pierced by a passage for the jet of the rear load.
- This partition also comprises a sealing cap applied to a damping material.
- Such a structure also does not allow to achieve a compact military head.
- the patent FR2581749 discloses a specific tandem head incorporating a thruster between front load and rear load, the thruster acting intercharges screen.
- the patent DE4126793 finally proposes a military head with tandem charges in which the rear load is translated with respect to the case by the effect of the gases of the front load, gases that are otherwise deflected around the rear load by the conical profile of a screen.
- the object of the invention is to provide a military head with tandem loads, in which head, the overall length of the head remains reduced, but the protection of the rear load against the effects of the front load is nevertheless ensured.
- the subject of the invention is a tandem-loaded military head comprising a front load disposed remotely from a rear load, and an intercharging protection means interposed between the two loads and comprising a means of connection with controlled deformation, a military head.
- the intercharging protection means comprises at least a first metal screen which is arranged between the front load and the rear load, the first screen which comprises a solid central part to which is attached the controlled strain deformation means which is constituted by a thinned cylindrical zone comprising at least one groove for initiating a deformation of said cylindrical zone, thinned cylindrical zone which is integral with the caliber of the envelope of the rear charge and which covers the latter.
- the intercharging protection means may comprise a second metal screen interposed between the front load and the first screen, the second screen which is integral with a ferrule connecting the two loads.
- the second screen may have a conical profile, the top of the cone of which will be directed towards the front load, the first screen being formed of a simple integral conical cowling of the thin cylindrical zone, the conicity of the second screen being identical to that of the first screen.
- a layer of a deformable material may advantageously be interposed between the first and the second screen.
- the ferrule may include at least one vent.
- a tandem charge military head 1 according to the invention comprises a front load 2 which is arranged at a distance from a rear load 3.
- Each load 2 and 3 is a charge formed, that is to say it comprises an explosive charge on which is applied a concave coating 2a, 3a which generates a jet at high speed during the initiation of the load.
- the coatings may be conical. But any other concave shape (portion of sphere, paraboloid ...) could be implemented.
- the choice of the geometry of the coating depends on the desired performance for the fillers 2 and 3.
- the coatings 2a, 3a will generally be made of a ductile metallic material, for example copper.
- the figure 1 shows in partial section the rear load 3, which allows to see the coating 3a and the explosive charge 3b contained in a cylindrical envelope 3c.
- the front load 2 is not cut but is represented by dotted its coating 2a.
- the front load 2 and the rear load 3 are arranged in a case 4 (or ferrule) which makes it possible to connect the charges to one another.
- the case 4 has a rear portion 4a slightly larger than that of the rear load 3 and a front portion 4b the caliber of the front load 2.
- the rear load 3 is fixed to the shell 4 at radial shims 7.
- the loads 2 and 3 are secured to the shell 4 (and shims 7) by any appropriate means, for example by radial pins (not shown ).
- the rear portions 4a and 4b before the ferrule 4 are connected by a conical portion 4c.
- the ferrule 4 further includes vents 5, regularly distributed angularly, and which can radially evacuate a portion of the gases generated during the initiation of the load before 2. Such a known arrangement can partially protect the rear load 3 .
- the military head 1 finally comprises a means 6 for intercharging protection which is interposed between the front load 2 and the rear load 3.
- This intercharging protection means 6 comprises at least a first metal screen 8 which is secured to the envelope 3c of the rear load 3 by a controlled deformation linkage means.
- the metal screen 8 has a conical profile whose cone apex is directed towards the front load 2.
- the controlled deformation binding means is constituted here by a thin cylindrical zone (or wall) 9 which cap the envelope 3c of the rear charge 3.
- This cylindrical zone 9 further comprises a groove 10 which makes it possible to initiate a deformation of said cylindrical zone 9.
- the cylindrical zone 9 comes into axial abutment against a shim 7 of the rear load 3.
- the cylindrical zone 9 may be glued to the envelope 3c of the rear load or it may be threaded to this envelope.
- the circular groove 10 extends, inside the cavity 12 delimited by the screen 8, by a bead 11.
- the screen 8 extended by the cylindrical zone 9 thus constitutes a housing which caps the front of the rear load 3. This housing delimits a volume whose dimensions after deformation of the cylindrical zone 9 are however controlled and which are defined by design so as to allow the formation of the jet of the rear load 3.
- the massive conical portion of the screen 8 receives during the initiation of the load before 2 the pressure of the generated gases and the rear projections (chips ...) from the front load. This solid part transmits the received shock to the thinned cylindrical zone 9 which will deform plastically by absorbing the mechanical energy received.
- the rear charge 3 is therefore protected despite the relatively small distance between the two charges.
- the conical profile of the screen 8 ensures a deflection of the gases which are evacuated by the vents 5.
- the circular groove 10 has the effect of initiating and directing the plastic deformation of the cylindrical zone 9.
- the latter instead of splitting longitudinally will rather crash, practically accordion.
- the figure 2 shows the configuration of the screen 8 and the cylindrical zone 9 after initiation of the front load.
- the solid portion 8 of the screen has moved in the direction F while the cylindrical portion 9 has remained in abutment on the wedges 7.
- the cylindrical zone 9 has then crashed.
- the residual length L2 of the protection means 6 is less than half that of the initial length L1.
- a screen 8 with a thickness of 5 to 8 mm associated with a cylindrical zone 9 with a thickness of 2 to 3 mm provides effective protection with an intercharging distance of the order of 2 calibres of the rear charge.
- the cylindrical zone is reduced by about 50 to 70% of its initial length.
- the figure 3 thus shows a second embodiment of the invention in which the protection means 6 comprises a second metal screen 13 which is interposed between the front load 2 and the first screen 8.
- This second screen 13 is made integral with the ferrule 4 connecting the two loads by shearable pins 14.
- the first screen 8 is of relatively small thickness.
- the taper of the cowling 8 is identical to that of the internal profile 15 of the second screen 13.
- This layer may cover the entire conical surface of the screens or more simply (as shown here) have the shape of a washer.
- a deformable material it will be possible to choose a metallic honeycomb (for example based on aluminum) or even a porous metal foam, for example porous aluminum.
- Such reinforced protection makes it possible to obtain compact military heads (intercharging distance of between 1 and 3 calibres of the rear load) while putting in place a front load 2 of relatively large size (from 70 to 90% of the load size). back).
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- General Engineering & Computer Science (AREA)
- Laminated Bodies (AREA)
- Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
- Image-Pickup Tubes, Image-Amplification Tubes, And Storage Tubes (AREA)
Abstract
Description
Le domaine technique de l'invention est celui des têtes militaires comportant des charges formées montées en tandem.The technical field of the invention is that of the military heads comprising formed charges mounted in tandem.
Ces charges tandem sont bien connues. Elles associent une charge formée avant et une charge formée arrière qui sont séparées l'une de l'autre par un moyen de protection intercharges.These tandem charges are well known. They combine a front formed load and a rear formed load which are separated from each other by intercharging protection means.
Les charges sont initiées en séquence avec un retard de l'ordre de quelques centaines de microsecondes voire de l'ordre de la milliseconde entre les deux charges.The charges are initiated in sequence with a delay of the order of a few hundred microseconds or even of the order of a millisecond between the two charges.
Le principal intérêt des charges tandem est qu'elles permettent de contrer les blindages équipés de surprotections réactives. En effet la charge avant permet d'initier le blindage réactif, et la charge arrière perfore le blindage principal une fois qu'il n'est plus protégé par sa protection réactive.The main interest of tandem loads is that they can counter the shields equipped with reactive overprotection. In fact the front load makes it possible to initiate the reactive shielding, and the rear charge perforates the main shield once it is no longer protected by its reactive protection.
De nombreux brevets décrivent des architectures de charge tandem. On pourra ainsi citer:
Les charges connues comportent toutes une protection intercharges qui permet de protéger la charge arrière lors de la détonation de la charge avant. Cette protection comprend le plus souvent un écran, plus ou moins massif, qui est solidaire de l'enveloppe de la charge ainsi que des évents aménagés dans l'étui de la charge et qui permettent d'évacuer radialement les gaz engendrés par l'initiation de la charge avant.The known charges all include an intercharging protection which makes it possible to protect the rear charge during the detonation of the front load. This protection most often comprises a screen, more or less solid, which is secured to the envelope of the load and the vents arranged in the case of the load and which allow to radially evacuate the gases generated by the initiation front load.
Le brevet
Il est également connu de prévoir un écran mobile sous l'effet du choc de façon à amortir les effets de ce dernier. Les brevets
On connaît aussi par le brevet
Par ailleurs si ce brevet décrit un disque métallique interposé entre le manchon avant et le tube déformable, ce disque mince intervient peu dans l'absorption du choc mais permet uniquement d'empêcher la pénétration de gaz ou d'éclats à l'intérieur du tube déformable.Furthermore, if this patent describes a metal disc interposed between the front sleeve and the deformable tube, this thin disc has little effect in absorbing the impact but only prevents the penetration of gas or splinters inside the tube. deformable.
Le brevet
Le brevet
Le brevet
Une telle solution est complexe à mettre en oeuvre et entraîne un différentiel de vitesses de la charge arrière par rapport à l'étui de la tête qui peut être préjudiciable à la précision du tir.Such a solution is complex to implement and causes a differential speed of the rear load relative to the case of the head that can be detrimental to the accuracy of the shot.
L'invention a pour objet de proposer une tête militaire à charges en tandem, tête dans laquelle, la longueur globale de la tête reste réduite mais la protection de la charge arrière contre les effets de la charge avant est cependant assurée.The object of the invention is to provide a military head with tandem loads, in which head, the overall length of the head remains reduced, but the protection of the rear load against the effects of the front load is nevertheless ensured.
Ainsi l'invention a pour objet une tête militaire à charges en tandem comprenant une charge avant disposée à distance d'une charge arrière, et un moyen de protection intercharges interposé entre les deux charges et comportant un moyen de liaison à déformation contrôlée, tête militaire caractérisée en ce que le moyen de protection intercharges comprend au moins un premier écran métallique qui est disposé entre la charge avant et la charge arrière, premier écran qui comporte une partie centrale massive à laquelle est fixé le moyen de liaison à déformation contrôlée qui est constitué par une zone cylindrique amincie comportant au moins une rainure permettant d'amorcer une déformation de ladite zone cylindrique, zone cylindrique amincie qui est solidaire et au calibre de l'enveloppe de la charge arrière et qui coiffe cette dernière.Thus, the subject of the invention is a tandem-loaded military head comprising a front load disposed remotely from a rear load, and an intercharging protection means interposed between the two loads and comprising a means of connection with controlled deformation, a military head. characterized in that the intercharging protection means comprises at least a first metal screen which is arranged between the front load and the rear load, the first screen which comprises a solid central part to which is attached the controlled strain deformation means which is constituted by a thinned cylindrical zone comprising at least one groove for initiating a deformation of said cylindrical zone, thinned cylindrical zone which is integral with the caliber of the envelope of the rear charge and which covers the latter.
Selon un autre mode de réalisation, le moyen de protection intercharges pourra comprendre un deuxième écran métallique interposé entre la charge avant et le premier écran, deuxième écran qui est solidaire d'une virole reliant les deux charges.According to another embodiment, the intercharging protection means may comprise a second metal screen interposed between the front load and the first screen, the second screen which is integral with a ferrule connecting the two loads.
Le deuxième écran pourra avoir un profil conique dont le sommet du cône sera dirigé vers la charge avant, le premier écran étant formé d'un simple capotage conique solidaire de la zone cylindrique mince, la conicité du deuxième écran étant identique à celle du premier écran.The second screen may have a conical profile, the top of the cone of which will be directed towards the front load, the first screen being formed of a simple integral conical cowling of the thin cylindrical zone, the conicity of the second screen being identical to that of the first screen.
Une couche d'un matériau déformable pourra avantageusement être interposée entre le premier et le deuxième écran.A layer of a deformable material may advantageously be interposed between the first and the second screen.
La virole pourra comporter au moins un évent.The ferrule may include at least one vent.
L'invention sera mieux comprise à la lecture de la description qui va suivre de différents modes de réalisation, description faite en référence aux dessins annexés dans lesquels :
- la
figure 1 est une vue en coupe longitudinale d'une tête militaire selon un premier mode de réalisation de l'invention, - la
figure 2 est une vue partielle montrant l'écran intercharges après initiation de la charge avant, - la
figure 3 montre en coupe longitudinale une tête militaire selon un deuxième mode de réalisation de l'invention.
- the
figure 1 is a longitudinal sectional view of a military head according to a first embodiment of the invention, - the
figure 2 is a partial view showing the intercharges screen after initiation of the load before, - the
figure 3 shows in longitudinal section a military head according to a second embodiment of the invention.
En se reportant à la
Chaque charge 2 et 3 est une charge formée, c'est à dire qu'elle comporte un chargement explosif sur lequel est appliqué un revêtement concave 2a,3a qui engendre un jet à haute vitesse lors de l'initiation de la charge. D'une façon connue, les revêtements pourront être de forme conique. Mais toute autre forme concave (portion de sphère, paraboloïde... ) pourrait être mise en oeuvre. Le choix de la géométrie du revêtement dépend des performances recherchées pour les charges 2 et 3. Les revêtements 2a,3a seront généralement réalisés en un matériau métallique ductile, par exemple en cuivre.Each
La
Ces caractéristiques sont classiques pour le concepteur de têtes militaires tandem et il n'est donc pas nécessaire de les décrire plus en détails.These features are typical for the tandem warhead designer, so there is no need to describe them in more detail.
La charge avant 2 et la charge arrière 3 sont disposées dans un étui 4 (ou virole) qui permet de relier les charges l'une à l'autre. L'étui 4 comporte une partie arrière 4a de calibre légèrement supérieur à celui de la charge arrière 3 et une partie avant 4b au calibre de la charge avant 2.The
La charge arrière 3 est fixée à la virole 4 au niveau de cales radiales 7. Les charges 2 et 3 sont rendues solidaires de la virole 4 (ainsi que des cales 7) par tout moyen approprié, par exemple par des goupilles radiales (non représentées).The
Les parties arrière 4a et avant 4b de la virole 4 sont reliées par une partie conique 4c.The
La virole 4 comporte par ailleurs des évents 5, régulièrement répartis angulairement, et qui permettent d'évacuer radialement une partie des gaz engendrés lors de l'initiation de la charge avant 2. Une telle disposition connue permet de protéger en partie la charge arrière 3.The
La tête militaire 1 comporte enfin un moyen 6 de protection intercharges qui est interposé entre la charge avant 2 et la charge arrière 3.The
Ce moyen de protection intercharges 6 comprend au moins un premier écran métallique 8 qui est rendu solidaire de l'enveloppe 3c de la charge arrière 3 par un moyen de liaison à déformation contrôlée. L'écran métallique 8 comporte un profil conique dont le sommet du cône est dirigé vers la charge avant 2.This intercharging protection means 6 comprises at least a
Le moyen de liaison à déformation contrôlée est constitué ici par une zone (ou paroi) cylindrique mince 9 qui coiffe l'enveloppe 3c de la charge arrière 3. Cette zone cylindrique 9 comporte par ailleurs une rainure 10 qui permet d'amorcer une déformation de ladite zone cylindrique 9.The controlled deformation binding means is constituted here by a thin cylindrical zone (or wall) 9 which cap the
On voit sur la
Le fait de réaliser la déformation au niveau d'une zone ou paroi cylindrique au calibre de la charge arrière permet d'une part de disposer d'une zone déformable ayant des caractéristiques de rigidité compatibles avec le besoin de compacité et d'autre part de ne pas encombrer le volume interne au boîtier avec la paroi ainsi déformée.The fact of making the deformation at the level of a zone or cylindrical wall with the caliber of the rear load makes it possible, on the one hand, to have a deformable zone having rigidity characteristics compatible with the need for compactness and on the other hand to do not encumber the internal volume of the housing with the wall thus deformed.
Un tel résultat ne peut être obtenu avec le concept décrit par
La partie conique massive de l'écran 8 reçoit lors de l'initiation de la charge avant 2 la pression des gaz engendrés ainsi que les projections arrières (éclats...) issues de la charge avant. Cette partie massive transmet le choc reçu à la zone cylindrique amincie 9 qui va se déformer plastiquement en absorbant l'énergie mécanique reçue. La charge arrière 3 se trouve donc protégée malgré la distance relativement réduite séparant les deux charges. Par ailleurs le profil conique de l'écran 8 assure une déviation des gaz qui sont évacués par les évents 5.The massive conical portion of the
La rainure circulaire 10 a pour effet d'amorcer et diriger la déformation plastique de la zone cylindrique 9. Cette dernière au lieu de se fendre longitudinalement va plutôt s'écraser, pratiquement en accordéon.The
La
A titre d'exemple pour un calibre de charge de 100 mm, un écran 8 d'épaisseur 5 à 8 mm associé à une zone cylindrique 9 d'épaisseur 2 à 3 mm assure une protection efficace avec une distance intercharges de l'ordre de 2 calibres de la charge arrière. La zone cylindrique se réduit d'environ 50 à 70% de sa longueur initiale.For example, for a load gauge of 100 mm, a
Ceci est à comparer avec les distances habituelles rencontrées dans les têtes militaires connues, notamment dotées d'écrans mobiles, distances intercharges qui sont de l'ordre de 5 calibres au minimum.This is to be compared with the usual distances encountered in known military heads, including mobile screens, intercharges distances which are of the order of 5 calibres minimum.
En fonction des types de charges mises en oeuvre, on pourra renforcer le niveau de protection assuré par le moyen de protection intercharges 6.Depending on the types of loads used, it will be possible to reinforce the level of protection provided by the intercharging protection means 6.
La
Ce deuxième écran 13 est rendu solidaire de la virole 4 reliant les deux charges par des goupilles cisaillables 14.This
On voit que dans ce mode particulier de réalisation, le premier écran 8 est d'épaisseur relativement réduite.We see that in this particular embodiment, the
Il se limite à un capotage conique qui est solidaire de la zone cylindrique mince 9. Il n'est en effet plus nécessaire de donner au premier écran 8 une épaisseur importante car il ne reçoit plus directement les gaz ni les projections arrières résultant de l'initiation de la charge avant 2. Ces derniers sont maintenant reçus par le deuxième écran 13.It is limited to a conical cowling which is integral with the thin cylindrical zone 9. It is indeed no longer necessary to give the first screen 8 a significant thickness because it no longer directly receives the gases or the rear projections resulting from the initiation of the charge before 2. These are now received by the
La conicité du capotage 8 est identique à celle du profil interne 15 du deuxième écran 13.The taper of the
Ainsi lors de l'initiation de la charge avant 2, la pression des gaz s'exerce sur le deuxième écran 13. Elle provoque le cisaillement des goupilles 14 et le deuxième écran se trouve poussé contre le premier écran 8. La concordance des formes coniques des deux écrans assure une répartition des efforts sur l'ensemble de la surface externe du premier écran 8. Il en résulte une poussée sensiblement axiale du premier écran 8 par le second écran 13. La partie cylindrique 9 mince va alors se déformer comme dans le mode de réalisation précédent et absorber par cette déformation une partie de l'énergie mécanique reçue.Thus, during the initiation of the charge before 2, the pressure of the gases is exerted on the
Afin de compléter encore la protection il est possible (comme représenté sur la
Cette couche pourra couvrir toute la surface conique des écrans ou plus simplement (comme représenté ici) avoir la forme d'une rondelle. On pourra choisir comme matériau déformable un nid d'abeille métallique (par exemple à base d'aluminium) ou bien encore une mousse de métal poreux, par exemple aluminium poreux.This layer may cover the entire conical surface of the screens or more simply (as shown here) have the shape of a washer. As a deformable material, it will be possible to choose a metallic honeycomb (for example based on aluminum) or even a porous metal foam, for example porous aluminum.
Une telle protection renforcée permet d'obtenir des têtes militaires compactes (distance intercharges comprise entre 1 et 3 calibres de la charge arrière) tout en mettant en place une charge avant 2 de calibre relativement important (de 70 à 90% du calibre de la charge arrière).Such reinforced protection makes it possible to obtain compact military heads (intercharging distance of between 1 and 3 calibres of the rear load) while putting in place a
Ceci est particulièrement utile dans la conception de missiles comportant une partie électronique relativement volumineuse en avant de la tête tandem. En effet l'efficacité perforante de la charge avant doit alors être renforcée pour tenir compte de cette architecture du missile qui impose au jet de la charge avant de traverser la partie électronique.This is particularly useful in missile design having a relatively large electronic portion in front of the tandem head. Indeed, the perforating efficiency of the front load must then be increased to take into account this architecture of the missile which forces the jet of the charge before crossing the electronic part.
Claims (6)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0905693A FR2953009A1 (en) | 2009-11-26 | 2009-11-26 | MILITARY HEAD WITH TANDEM LOADS |
Publications (2)
Publication Number | Publication Date |
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EP2327952A1 true EP2327952A1 (en) | 2011-06-01 |
EP2327952B1 EP2327952B1 (en) | 2015-09-09 |
Family
ID=42246221
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP10290614.6A Active EP2327952B1 (en) | 2009-11-26 | 2010-11-18 | Tandem shaped charge warhead |
Country Status (2)
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EP (1) | EP2327952B1 (en) |
FR (1) | FR2953009A1 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3591333A1 (en) * | 2018-07-02 | 2020-01-08 | TDW Gesellschaft für verteidigungstechnische Wirksysteme mbH | Tandem charge for a missile and anti-shock cap for a main charge of a tandem charge |
EP3614095A1 (en) * | 2018-08-24 | 2020-02-26 | TDW Gesellschaft für verteidigungstechnische Wirksysteme mbH | Tandem loading for a missile |
DE102020001784A1 (en) | 2020-03-17 | 2021-09-23 | Diehl Defence Gmbh & Co. Kg | Projectile, device arrangement and method |
DE102023000642B3 (en) | 2023-02-22 | 2024-01-25 | Bundesrepublik Deutschland, vertr. durch das Bundesministerium der Verteidigung, vertr. durch das Bundesamt für Ausrüstung, Informationstechnik und Nutzung der Bundeswehr | Warhead with a primary hollow charge and a main hollow charge |
Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2540238A1 (en) | 1983-01-27 | 1984-08-03 | Serat | Improvements made to double hollow charges |
FR2552870A1 (en) | 1980-10-24 | 1985-04-05 | France Etat Armement | Improvements to warheads with shaped charges mounted in tandem |
FR2559896A1 (en) | 1984-02-20 | 1985-08-23 | France Etat Armement | INITIATION DELAY FOR A MILITARY HEAD WITH TANDEM MOUNTED LOADS |
FR2577037A1 (en) | 1985-01-31 | 1986-08-08 | France Etat Armement | MILITARY HEAD WITH TANDEM MOUNTED LOADS |
FR2581749A1 (en) | 1985-05-10 | 1986-11-14 | France Etat Armement | ANTICHAR PROJECTILE |
DE3601051C1 (en) | 1986-01-16 | 1987-06-11 | Messerschmitt Boelkow Blohm | Warhead |
US4854240A (en) * | 1986-12-25 | 1989-08-08 | The State Of Israel, Ministry Of Defence, Israel Military Industries | Two-stage shaped charge projectile |
DE4126793C1 (en) | 1991-08-14 | 1994-05-11 | Deutsche Aerospace | Tandem hollow charge weapon head with gas shield - forming unit with main charge for acceleration along shell when initial charge detonates |
DE3740412C1 (en) | 1987-11-28 | 1996-04-25 | Rheinmetall Ind Gmbh | Warhead for use against targets with active armour |
EP1531316A1 (en) | 2003-11-11 | 2005-05-18 | RUAG Munition | Structure of a warhead |
-
2009
- 2009-11-26 FR FR0905693A patent/FR2953009A1/en active Pending
-
2010
- 2010-11-18 EP EP10290614.6A patent/EP2327952B1/en active Active
Patent Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2552870A1 (en) | 1980-10-24 | 1985-04-05 | France Etat Armement | Improvements to warheads with shaped charges mounted in tandem |
FR2540238A1 (en) | 1983-01-27 | 1984-08-03 | Serat | Improvements made to double hollow charges |
FR2559896A1 (en) | 1984-02-20 | 1985-08-23 | France Etat Armement | INITIATION DELAY FOR A MILITARY HEAD WITH TANDEM MOUNTED LOADS |
FR2577037A1 (en) | 1985-01-31 | 1986-08-08 | France Etat Armement | MILITARY HEAD WITH TANDEM MOUNTED LOADS |
FR2581749A1 (en) | 1985-05-10 | 1986-11-14 | France Etat Armement | ANTICHAR PROJECTILE |
DE3601051C1 (en) | 1986-01-16 | 1987-06-11 | Messerschmitt Boelkow Blohm | Warhead |
US4854240A (en) * | 1986-12-25 | 1989-08-08 | The State Of Israel, Ministry Of Defence, Israel Military Industries | Two-stage shaped charge projectile |
DE3740412C1 (en) | 1987-11-28 | 1996-04-25 | Rheinmetall Ind Gmbh | Warhead for use against targets with active armour |
DE4126793C1 (en) | 1991-08-14 | 1994-05-11 | Deutsche Aerospace | Tandem hollow charge weapon head with gas shield - forming unit with main charge for acceleration along shell when initial charge detonates |
EP1531316A1 (en) | 2003-11-11 | 2005-05-18 | RUAG Munition | Structure of a warhead |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3591333A1 (en) * | 2018-07-02 | 2020-01-08 | TDW Gesellschaft für verteidigungstechnische Wirksysteme mbH | Tandem charge for a missile and anti-shock cap for a main charge of a tandem charge |
EP3614095A1 (en) * | 2018-08-24 | 2020-02-26 | TDW Gesellschaft für verteidigungstechnische Wirksysteme mbH | Tandem loading for a missile |
DE102020001784A1 (en) | 2020-03-17 | 2021-09-23 | Diehl Defence Gmbh & Co. Kg | Projectile, device arrangement and method |
DE102023000642B3 (en) | 2023-02-22 | 2024-01-25 | Bundesrepublik Deutschland, vertr. durch das Bundesministerium der Verteidigung, vertr. durch das Bundesamt für Ausrüstung, Informationstechnik und Nutzung der Bundeswehr | Warhead with a primary hollow charge and a main hollow charge |
Also Published As
Publication number | Publication date |
---|---|
FR2953009A1 (en) | 2011-05-27 |
EP2327952B1 (en) | 2015-09-09 |
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