EP3663703A1 - Panzerbrechender gefechtskopf - Google Patents

Panzerbrechender gefechtskopf Download PDF

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Publication number
EP3663703A1
EP3663703A1 EP19208948.0A EP19208948A EP3663703A1 EP 3663703 A1 EP3663703 A1 EP 3663703A1 EP 19208948 A EP19208948 A EP 19208948A EP 3663703 A1 EP3663703 A1 EP 3663703A1
Authority
EP
European Patent Office
Prior art keywords
bar
military
energetic material
flanges
head according
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
EP19208948.0A
Other languages
English (en)
French (fr)
Other versions
EP3663703B1 (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
Original Assignee
Nexter Munitions SA
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
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 piercing military heads which comprise a bar surrounded at least in part by at least one energetic material.
  • the subject of the invention is a perforating military head comprising a perforating bar surrounded at least in part by at least one energetic material, and comprising a means for initiating energetic material, a military head characterized in that the bar is integral with 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 is placed the energetic material (s), military head comprising a cylindrical envelope surrounding the energetic material (s), the envelope being constituted by a thin sheet of synthetic material or else by an explosive material with thermosetting plastic binder integrating in its composition glass or carbon fibers.
  • the energetic material may be a material with thermobaric effect.
  • the piercing military head may include a cylindrical envelope surrounding the energetic material (s).
  • the envelope may consist of a thin sheet of synthetic material.
  • the energetic material may comprise a secondary explosive incorporating a breath-reinforcing agent, such as aluminum or ammonium perchlorate.
  • a breath-reinforcing agent such as aluminum or ammonium perchlorate.
  • the priming means may then comprise at least one ring of detonation relays secured to at least one of the flanges.
  • the energetic material may comprise a combustible dispersible gel in air.
  • the energetic material may be a gel combining a fuel such as nitromethane and at least one breath-enhancing material such as aluminum.
  • the initiating means may include at least one initiating explosive ring interposed between the bar and the energetic material, which ring is initiated by at least one ring of initiators.
  • the bar and the flanges can be made in the form of a single piece.
  • a military head 1 according to a first embodiment of the invention, 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 military head 1 is secured to 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 of which it provides the perforation.
  • the flanges 3a and 3b are made integral with the bar 2, for example by threading or welding if the bar and the closing flange are made of different materials (for reasons of mass gain or positioning of the center of gravity. .).
  • the flanges can also, in the case of using an additive manufacturing process, form only one and only part with the bar. They are then made of a single material ensuring the mechanical strength of the military head to the constraints of implementation (shooting in particular) while also ensuring the terminal performance relating to the perforation of reinforced structures.
  • the flanges are for example made in steel with high mechanical characteristics (elastic limit higher 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 a single piece by a conventional machining process by removing material.
  • the bar 2 extends in front AV of the front flange 3a. It is the bar which impacts the target wall first.
  • the front flange 3a may also have an ogive profile favoring the continuation of the perforation initiated by the bar 2. Such a variant profile 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 perforation characteristics.
  • the front face 4a of the front flange 3a is conical and the rear face 4b is also conical. This last embodiment makes it possible to reduce the mass of the front flange.
  • the flanges 3a and 3b and the bar 2 define an annular volume in which is disposed at least one energetic material 5.
  • the rear flange 3b carries an initiating means 6 of the energetic material 5.
  • This priming means 6 here comprises at least one ring of detonation relay 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 rocket 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 military head.
  • Multipoint ignition of energetic material 5 generates a wave of pseudo-annular detonation (the shape of which depends on the number of relays 7 integrated into the priming system) in the material 5, without disturbance by the bar 2.
  • the military head finally comprises a cylindrical envelope 10 which surrounds the energetic material 5 and also the flanges 3a and 3b.
  • the material of the envelope 10 may consist of a thin sheet of synthetic material, for example a sheet of polytetra-fluorethylene or of heat-shrinkable polyvinylidene fluoride, or a plastic material reinforced with glass fiber.
  • the casing 10 seals the energy charge 5 against moisture. It does not intervene in the mechanical resistance of the military head 1 which is provided by the bar 2 and the flanges 3a and 3b (and also by the structure of the projectile - not shown).
  • the casing 10 could advantageously consist of a material which is itself explosive with a thermosetting plastic binder which will provide the necessary seal.
  • This envelope of energetic material will integrate in its composition glass or carbon fibers which will optimize its rigidity. Consequently, the envelope, far from disturbing the generation of the expected breath effects, will itself contribute to this generation.
  • the military head 1 thus generates only a blast effect, which decreases the radius of lethality of the ammunition during an initiation in an open field and limits the collateral effects when used in urban areas.
  • the military head 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 initiates the energetic material 5.
  • the latter is configured to generate a blast effect. This effect is deployed behind the protective wall crossed by the bar. Efficiency is therefore optimal inside a confined space which was protected by the wall thus crossed.
  • 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 breath-reinforcing agent, such as aluminum or ammonium perchlorate. Most breath enhancers are powerful reducers.
  • an energetic material comprising 30 to 40% of hexogen, 20 to 30% of trinitrotoluene and 30 to 40% of aluminum.
  • the figure 5 shows in longitudinal section a military head 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 used.
  • 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 "explosive fuel-air” or FAE.
  • the energetic material 5 could thus consist of a gel which combines a combustible material such as nitromethane and a breath-enhancing 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 ring 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 associated with phlegmatizing binders.
  • An energetic material for example with pyrophoric effect, can be incorporated into the ignition ring 11 to improve the ignition capabilities of the gel by the ignition and projection explosive 11 after the gel has been sprayed.
  • the detonation of the explosive ring 11 will cause the radial projection of the thermobaric energetic material 5 in the form of droplets, so that the apparent surface of the cloud formed by the droplets is as large as possible.
  • This distribution of droplets will optimize their ignition conditions in suspension and will amplify the effects of aerobic afterburning (reaction mechanisms associated with the use of all or part of the oxygen in the ambient air). The associated breath is maximized.
  • the energy deployed during the dispersion causes the ignition of the fuel included in the droplets step by step.
  • the energetic material is formed of a stack of several annular blocks surrounding the bar and interposed between the two flanges.
  • a military head comprising two detonation relay crowns. It is possible to provide two concentric rings arranged at the level of only one of the flanges. It is also possible to provide at least one detonation relay ring integral with each of the flanges. All the crowns will be connected to the rocket which will ensure their initiation. It is also possible to associate at least one ring of detonation relays on each flange with a ring of initiating explosive 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)
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 true EP3663703A1 (de) 2020-06-10
EP3663703B1 EP3663703B1 (de) 2022-05-04

Family

ID=66049319

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)

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

Cited By (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

Citations (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
EP0886121A2 (de) 1997-06-13 1998-12-23 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
US20060011053A1 (en) * 2002-02-21 2006-01-19 Rheinmetall W & M Gmbh Method for producing a large-caliber, high-explosive projectile, and high-explosive projectile produced in accordance with the method
US20060060273A1 (en) * 2004-05-06 2006-03-23 Kjell-Tore Smith Pressable explosive composition

Patent Citations (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
EP0886121A2 (de) 1997-06-13 1998-12-23 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
US20060011053A1 (en) * 2002-02-21 2006-01-19 Rheinmetall W & M Gmbh Method for producing a large-caliber, high-explosive projectile, and high-explosive projectile produced in accordance with the method
US20060060273A1 (en) * 2004-05-06 2006-03-23 Kjell-Tore Smith Pressable explosive composition

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
VADHE P P ET AL: "Cast aluminized explosives (review)", COMBUSTION, EXPLOSION, AND SHOCK WAVES, KLUWER ACADEMIC PUBLISHERS-PLENUM PUBLISHERS, NE, vol. 44, no. 4, 11 September 2008 (2008-09-11), pages 461 - 477, XP019601613, ISSN: 1573-8345 *

Cited By (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

Also Published As

Publication number Publication date
FR3089621B1 (fr) 2022-04-01
FR3089621A1 (fr) 2020-06-12
EP3663703B1 (de) 2022-05-04
ES2920801T3 (es) 2022-08-09

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