EP3663703B1 - Panzerbrechender gefechtskopf - Google Patents

Panzerbrechender gefechtskopf Download PDF

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Publication number
EP3663703B1
EP3663703B1 EP19208948.0A EP19208948A EP3663703B1 EP 3663703 B1 EP3663703 B1 EP 3663703B1 EP 19208948 A EP19208948 A EP 19208948A EP 3663703 B1 EP3663703 B1 EP 3663703B1
Authority
EP
European Patent Office
Prior art keywords
energetic material
penetrative
warhead
flanges
rod
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.)
Active
Application number
EP19208948.0A
Other languages
English (en)
French (fr)
Other versions
EP3663703A1 (de
Inventor
Rémi Boulanger
Frédéric Nozeres
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.)
Nexter Munitions SA
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Nexter Munitions SA
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Filing date
Publication date
Application filed by Nexter Munitions SA filed Critical Nexter Munitions SA
Publication of EP3663703A1 publication Critical patent/EP3663703A1/de
Application granted granted Critical
Publication of EP3663703B1 publication Critical patent/EP3663703B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • F42B12/06—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 hard or heavy core; Kinetic energy penetrators
    • 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
    • F42B12/201—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 characterised by target class
    • F42B12/204—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 characterised by target class for attacking structures, e.g. specific buildings or fortifications, ships or vehicles
    • 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
    • F42B12/207—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 characterised by the explosive material or the construction of the high explosive warhead, e.g. insensitive ammunition
    • 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
    • F42B12/36—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect for dispensing materials; for producing chemical or physical reaction; for signalling ; for transmitting information
    • F42B12/46—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect for dispensing materials; for producing chemical or physical reaction; for signalling ; for transmitting information for dispensing gases, vapours, powders or chemically-reactive substances
    • F42B12/50—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect for dispensing materials; for producing chemical or physical reaction; for signalling ; for transmitting information for dispensing gases, vapours, powders or chemically-reactive substances by dispersion
    • F42B12/52—Fuel-air explosive devices
    • 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
    • F42C19/0846—Arrangements of a multiplicity of primers or detonators, dispersed within a warhead, for increased efficiency

Definitions

  • the technical field of the invention is that of armor-piercing warheads which comprise a bar surrounded at least in part by at least one energetic material.
  • the subject of the invention is a perforating warhead comprising a perforating bar surrounded at least in part by at least one energetic material, and comprising a means for priming the energetic material, warhead characterized in that the bar is secured to two flanges, a front flange and a rear flange, the bar extending in front of the front flange, the flanges and the bar delimiting an annular volume in which the energetic material(s) is placed, warhead comprising a cylindrical envelope surrounding the energetic material or materials, the envelope being constituted by a thin sheet of synthetic material or else by an explosive material with a thermosetting plastic binder integrating glass or carbon fibers in its composition.
  • the energetic material may be a thermobaric effect material.
  • the armor-piercing warhead may comprise a cylindrical envelope surrounding the energetic material(s).
  • the envelope may be constituted by a thin sheet of synthetic material.
  • the energetic material may comprise a secondary explosive incorporating a blast-enhancing agent, such as aluminum or ammonium perchlorate.
  • a blast-enhancing agent such as aluminum or ammonium perchlorate.
  • the priming means may then comprise at least one crown of detonation relays integral with at least one of the flanges.
  • the energetic material may comprise a dispersible gel combustible in the air.
  • the energetic material may be a gel combining a fuel such as nitromethane and at least one blast-enhancing material such as aluminum.
  • the priming means may comprise at least one priming explosive ring interposed between the bar and the energetic material, ring itself initiated by at least one ring of initiators.
  • the bar and the flanges may be made in the form of a single piece.
  • a warhead 1 comprises a perforating bar 2 which is integral with two flanges 3a and 3b.
  • the bar 2 is for example made of a dense material such as tungsten.
  • the function of the bar 2 is to ensure the perforation of a wall of a target (not shown).
  • the warhead 1 is integral with a projectile (not shown) such as a missile or a rocket, or even a projectile fired by a weapon system (tank or artillery gun).
  • a projectile such as a missile or a rocket
  • a weapon system such as a weapon or artillery gun
  • the projectile is driven by a speed V which is communicated to it by the weapon system or else by a propellant (missile or rocket).
  • This speed V is that at which the bar impacts a wall which it punctures.
  • the flanges 3a and 3b are made integral with the bar 2, for example by threading or by welding if the bar and the closing flange are made of different materials (for reasons of weight saving or positioning of the center of gravity.. .).
  • the flanges can also, in the case of the use of an additive manufacturing process, form a single and unique part with the bar. They are then made of one and the same material ensuring the mechanical resistance of the warhead to the constraints of implementation (firing in particular) while also ensuring the terminal performance relating to the perforation of reinforced structures.
  • the flanges are for example made steel with high mechanical characteristics (elastic limit greater than 1800 Mega Pascals). It is clear to those skilled in the art that it is also possible to produce the bar and the flanges in one and the same piece by a conventional machining process by removal of material.
  • the bar 2 extends forward AV of the front flange 3a. It is the bar that impacts the wall of the target first.
  • the front flange 3a may also have an ogival profile favoring the continuation of the perforation initiated by the bar 2. Such a profile variant is visible on the figures 3 and 4 .
  • the front face 4a of the front flange 3a is conical and the rear face 4b is flat. This massive front flange has good punching characteristics.
  • the front face 4a of the front plate 3a is conical and the rear face 4b is also conical. This latter embodiment makes it possible to reduce the mass of the front flange.
  • the flanges 3a and 3b and the bar 2 delimit an annular volume in which is placed at least one energetic material 5.
  • the rear flange 3b carries an ignition means 6 for the energetic material 5.
  • This priming means 6 here comprises at least one ring of detonation relays 7 which are integral with the rear flange 3b and which are arranged in housings adapted to receive them. All the detonation relays 7 are controlled by a fuse 8 which ensures their simultaneous initiation and to which they are connected by wires.
  • the detonation relays 7 are regularly distributed angularly around the axis 9 of the warhead.
  • the multipoint ignition of the energetic material 5 ensures the generation of a wave of pseudo-annular detonation (whose shape depends on the number of relays 7 integrated into the initiation system) in the material 5, without disturbance by the bar 2.
  • the warhead finally comprises a cylindrical casing 10 which surrounds the energetic material 5 and also the flanges 3a and 3b.
  • the material of the casing 10 may consist of a thin sheet of synthetic material, for example a sheet of polytetrafluorethylene or heat-shrinkable polyvinylidene fluoride, or a plastic material reinforced with fiberglass.
  • the casing 10 seals the energy charge 5 with respect to humidity. It does not intervene in the mechanical resistance of the warhead 1 which is ensured by the bar 2 and the flanges 3a and 3b (and also by the structure of the projectile - not shown).
  • the casing 10 may advantageously be made of a material which is itself explosive with a thermosetting plastic binder which will ensure the necessary sealing.
  • This envelope in energetic material will integrate in its composition glass or carbon fibers which will allow to optimize the rigidity. Consequently, the envelope, far from disturbing the generation of the expected breath effects, will itself contribute to this generation.
  • the warhead 1 thus only generates a blast effect, which reduces the lethality radius of the ammunition during an initiation in an open field and limits the collateral effects during use in an urban area.
  • the warhead according to the invention has a perforation capacity which is provided to it by the bar 2, possibly supplemented by the front flange 3a.
  • the rocket 8 ensures the initiation of the energetic material 5.
  • the latter is configured to generate a blast effect. This effect is deployed behind the protective wall through which the bar passes. Efficiency is therefore optimal inside a confined space which was protected by the wall thus traversed.
  • Warhead 1 There is no projection of fragments. An initiation of Warhead 1 outside the target will have reduced lethal effect.
  • the energetic material 5 will thus be a material with a thermobaric effect, that is to say a material optimized to generate a blast effect.
  • the energetic material 5 may comprise a secondary explosive, for example hexogen, which incorporates a blast-enhancing agent, such as aluminum or ammonium perchlorate. Most breath enhancers are strong reducers.
  • an energetic material comprising 30 to 40% hexogen, 20 to 30% trinitrotoluene and 30 to 40% aluminum.
  • the figure 5 shows in longitudinal section a warhead according to a second embodiment of the invention.
  • This mode differs from the previous one essentially by the nature of the energetic material 5 which is implemented.
  • the energetic material 5 here consists of a dispersible gel which is combustible in the air. These materials are well known to those skilled in the art under the Anglo-Saxon name of “fuel-air explosives” or FAE.
  • the energetic material 5 may thus be constituted by a gel which combines a combustible material such as nitromethane and a blast reinforcing material such as aluminum.
  • Such a sequence is obtained by using a ring of ignition and projection explosive 11 which is interposed between the bar 2 and the energetic material 5.
  • This explosive ring 11 is itself initiated by a crown of initiators 7 controlled by the rocket 8.
  • the ignition and projection explosive ring 11 is for example formed by a block of hexogen or octogen combined with phlegmatizing binders. It will be possible to incorporate in the ignition ring 11 an energetic material, for example with a pyrophoric effect, to improve the ignition capacities of the gel by the ignition and projection explosive 11 after the projection of the gel.
  • the detonation of the explosive ring 11 will cause the radial projection of the thermobaric energetic material 5 in the form of droplets, such that the apparent surface of the cloud formed by the droplets is as large as possible.
  • the energy deployed during the dispersion causes the ignition, step by step, of the fuel included in the droplets.
  • a warhead according to the invention and in which the energetic material is formed by a stack of several annular blocks surrounding the bar and interposed between the two flanges.
  • a warhead comprising two detonation relay crowns. Provision may be made for two concentric crowns arranged at the level of only one of the flanges. It is also possible to provide at least one detonation relay crown integral with each of the flanges. All crowns will be connected to the rocket which will ensure their initiation. It will also be possible to associate at least one detonation relay crown on each flange with an initiating explosive ring allowing the dispersion and initiation of a dispersible and combustible gel.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Dispersion Chemistry (AREA)
  • Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
  • Specific Sealing Or Ventilating Devices For Doors And Windows (AREA)
  • Table Equipment (AREA)
  • Pressure Welding/Diffusion-Bonding (AREA)

Claims (8)

  1. Panzerbrechender Gefechtskopf (1), umfassend einen panzerbrechenden Stab (2), der mindestens zum Teil von mindestens einem energetischen Material (5) umgeben ist und aufweisend ein Zündmittel (6) des energetischen Materials, wobei der Stab (2) mit zwei Flanschen (3a, 3b), einem vorderen Flansch (3a) und einem hinteren Flansch (3b), fest verbunden ist, wobei sich der Stab (2) vor dem vorderen Flansch (3a) erstreckt, wobei die Flansche (3a, 3b) und der Stab (2) ein ringförmiges Volumen begrenzen, in dem das oder die energetische (n) Material (ien) (5) angeordnet ist/sind, wobei der Gefechtskopf einen zylindrischen Mantel (10) aufweist, der das oder die energetische(n) Material(ien) (5) umgibt, dadurch gekennzeichnet, dass der Mantel (10) aus einer dünnen Folie aus synthetischem Material oder auch aus einem explosiven Material mit thermisch härtbarem plastischem Bindemittel besteht, das in seiner Zusammensetzung Glas- oder Carbonfasern integriert.
  2. Panzerbrechender Gefechtskopf nach Anspruch 1, dadurch gekennzeichnet, dass das energetische Material (5) ein Material mit thermobarischer Wirkung ist.
  3. Panzerbrechender Gefechtskopf nach einem der Ansprüche 1 oder 2, dadurch gekennzeichnet, dass das energetische Material (5) einen sekundären Sprengstoff umfasst, der ein druckwellenverstärkendes Mittel wie Aluminium oder Ammoniumperchlorat inkorporiert.
  4. Panzerbrechender Gefechtskopf nach Anspruch 3, dadurch gekennzeichnet, dass das Zündmittel (6) mindestens einen Detonationsrelaiskranz (7) umfasst, die mit mindestens einem der Flansche (3a, 3b) fest verbunden sind.
  5. Panzerbrechender Gefechtskopf nach einem der Ansprüche 1 oder 2, dadurch gekennzeichnet, dass das energetische Material (5) ein in Luft brennbares dispergierbares Gel umfasst.
  6. Panzerbrechender Gefechtskopf nach Anspruch 5, dadurch gekennzeichnet, dass das energetische Material (5) ein Gel ist, das einen Brennstoff wie Nitromethan und mindestens ein druckwellenverstärkendes Material wie Aluminium kombiniert.
  7. Panzerbrechender Gefechtskopf nach einem der Ansprüche 5 oder 6, dadurch gekennzeichnet, dass das Zündmittel (6) mindestens einen Zündsprengstoffring (11) umfasst, der zwischen dem Stab (2) und dem energetischen Material (5) angeordnet ist, wobei der Ring (11) selbst von mindestens einem Auslöserkranz (7) ausgelöst wird.
  8. Panzerbrechender Gefechtskopf nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, dass der Stab (2) und die Flansche (3a, 3b) in Form eines einzigen Teils hergestellt sind.
EP19208948.0A 2018-12-07 2019-11-13 Panzerbrechender gefechtskopf Active EP3663703B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1872415A FR3089621B1 (fr) 2018-12-07 2018-12-07 Tete militaire perforante

Publications (2)

Publication Number Publication Date
EP3663703A1 EP3663703A1 (de) 2020-06-10
EP3663703B1 true EP3663703B1 (de) 2022-05-04

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP19208948.0A Active EP3663703B1 (de) 2018-12-07 2019-11-13 Panzerbrechender gefechtskopf

Country Status (3)

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EP (1) EP3663703B1 (de)
ES (1) ES2920801T3 (de)
FR (1) FR3089621B1 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113063325A (zh) * 2021-03-15 2021-07-02 中国人民解放军93213部队 一种核事故应急空中作用装置

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3000308A (en) * 1956-03-07 1961-09-19 William E Land High explosive composition
US3302570A (en) 1965-07-23 1967-02-07 Walter G Finch Armor piercing, fragmenting and incendiary projectile
US4573412A (en) * 1984-04-27 1986-03-04 The United States Of America As Represented By The Secretary Of The Army Plug nozzle kinetic energy penetrator rocket
DE29710228U1 (de) * 1997-06-13 1998-10-15 Diehl Stiftung & Co Geschoß für Rohrwaffen
US6135028A (en) * 1998-10-14 2000-10-24 The United States Of America As Represented By The Secretary Of The Navy Penetrating dual-mode warhead
DE10207209A1 (de) * 2002-02-21 2003-09-11 Rheinmetall W & M Gmbh Verfahren zur Herstellung eines großkalibrigen Sprenggeschosses und Sprenggeschoß, hergestellt nach diesem Verfahren
NO321356B1 (no) * 2004-05-06 2006-05-02 Dyno Nobel Asa Pressbar sprengstoffkomposisjon

Also Published As

Publication number Publication date
EP3663703A1 (de) 2020-06-10
FR3089621B1 (fr) 2022-04-01
ES2920801T3 (es) 2022-08-09
FR3089621A1 (fr) 2020-06-12

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