EP2789965B1 - Charge explosive incrémentable - Google Patents

Charge explosive incrémentable Download PDF

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Publication number
EP2789965B1
EP2789965B1 EP14001264.2A EP14001264A EP2789965B1 EP 2789965 B1 EP2789965 B1 EP 2789965B1 EP 14001264 A EP14001264 A EP 14001264A EP 2789965 B1 EP2789965 B1 EP 2789965B1
Authority
EP
European Patent Office
Prior art keywords
explosive
charge
explosive material
scalable
active mass
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
EP14001264.2A
Other languages
German (de)
English (en)
Other versions
EP2789965A1 (fr
Inventor
Thomas Falter
Dominik Clement
Arno Hahma
Florian Kaiser
Manfred Klare
Günther Lehrieder
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.)
Diehl BGT Defence GmbH and Co KG
Original Assignee
Diehl BGT Defence GmbH and Co KG
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 Diehl BGT Defence GmbH and Co KG filed Critical Diehl BGT Defence GmbH and Co KG
Publication of EP2789965A1 publication Critical patent/EP2789965A1/fr
Application granted granted Critical
Publication of EP2789965B1 publication Critical patent/EP2789965B1/fr
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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
    • F42C19/0842—Arrangements of a multiplicity of primers or detonators, dispersed within a warhead, for multiple mode selection

Definitions

  • the invention relates to a scalable explosive device for an active body.
  • the active body may be, for example, a warhead.
  • Warrior heads should therefore be so adjustable in their performance that they only destroy the desired target and cause as little collateral damage as possible.
  • a so-called GAP test is often carried out.
  • a generally made of polymethyl methacrylate (PMMA) existing barrier layer is positioned between the explosives to be examined and a to be fired by a detonator boost.
  • the boost charge is then detonated.
  • a pressure wave is coupled into the layer, which is attenuated as it passes through the layer before it hits the explosive.
  • the GAP test is carried out with different layer thicknesses of the barrier layer. In this case, the largest layer thickness at which the explosive is just detonated, and the lowest layer thickness at which just no detonation takes place, determined as a measure of the sensitivity of the explosive.
  • an ignition device for a warhead with an explosive charge with a first detonating chain with detonating charge for detonating initiation and a second detonating chain with an embolization charge for deflagrative initiation is known, wherein the time delay (.DELTA.t) between the triggering times of both ignition chains is adjustable. If the two ignition chains lie opposite each other with respect to the longitudinal axis of the explosive charge, by means of a suitable choice of the two Firing times the arbitrary setting of the deflagrierenden portion of the explosive charge between 0 and 100% achievable.
  • the booster charge of the second ignition chain may be formed as a shaped charge.
  • From the DE 100 15 070 A1 is an explosive charge for a warhead known, in addition to the detonating chain for detonative initiation of the explosive charge has another detonation chain for deflagrativen initiation.
  • the explosive charge is layered in the axial direction such that a first, third, etc. detonatively convertible explosive layer is followed by a second, fourth, etc. deflagratively convertible or inert layer.
  • the object of the present invention is to provide an alternative scalable explosive device which allows a relatively accurate adjustment of the blasting action. Furthermore, a method for scaling the effect of an explosive device should be specified.
  • a scalable explosive device for an active body comprising an explosive active mass, a first ignition chain with a first boost charge for triggering a detonative reaction of the explosive active mass and a second ignition chain with a second boost charge for triggering a deflagrativen implementation of the explosive active mass.
  • the ignition chains are of a known type. Usually, this consists of an electrically ignitable detonator, the ignition then causes the ignition of the first or second boost charge.
  • an explosive active mass is a pressure wave transmission means applied to the explosive active mass for coupling a pressure wave emanating from the second boost charge when it detonates into the explosive active mass and preventing the second boost charge from acting directly on the explosive active mass during the detonation of the second boost charge.
  • the second boost charge, the pressure wave transmission means and the explosive active mass and possibly also a suspension of the explosive active mass are chosen and dimensioned such that the pressure wave triggered by detonation of the boost charge causes the deflagrative conversion of the explosive active mass.
  • the energy to be coupled into the explosive active mass is less than the energy to be coupled into the explosive active mass for triggering a detonation.
  • the concern of the pressure wave transmission means to the explosive active mass may be a direct concern or indirect concern, for example via an intermediate layer of plastic. It is only essential that the pressure wave can be transmitted from the pressure wave transmission means to the explosive active mass.
  • the damming is important because in a highly dammed explosive active mass whose deflagrative reaction can go uncontrolled into a detonative reaction. However, this should be avoided with the scalable explosive device in order not to achieve a stronger than desired explosive effect.
  • the energy to be transmitted to the explosive active mass can be set very precisely, because the intensity of the pressure wave can be set very precisely.
  • the introduction of a deflagrative reaction known from the prior art by means of a shaped charge is less reliable because the energy transmitted through its detonation to the explosive active mass can vary due to fluctuations in the shaped charge power. This can lead to unintentional detonation.
  • the explosive device according to the invention enables a simple yet reliable functioning of a scalable explosive device.
  • the explosive effect can thus be scaled between 0%, for example in the case of a mission abort, and 100% continuously. If 0% explosive effect is desired, only the deflagrative reaction by ignition of the second Reinforced charge, but not the detonative ignition initiated. In contrast, if 100% explosive action is desired, only the detonative conversion by ignition of the first boost charge, but not the deflagrative conversion of the explosive active mass is initiated.
  • the scalable explosive device may include means for enabling simultaneous or staggered ignition of the first and second boosted charges.
  • the second boost charge can be ignited before or after the first boost charge.
  • the first boost charge and the second boost charge may be disposed on opposite sides of the explosive mass with respect to a longitudinal axis through the explosive active mass.
  • the pressure wave transmission medium may be polymethyl methacrylate (PMMA) or another, in particular polymeric, plastic.
  • the explosive active mass is enveloped by an active-substance shell, which either itself forms the pressure-wave transmission means or into which the pressure-wave transmission means is integrated.
  • the invention furthermore relates to a method for scaling the action of a scalable explosive device according to the invention, wherein a deflagrative conversion of the explosive active mass is initiated by introducing a pressure wave into the explosive active mass and the amount of explosive active mass to be detonatively converted by the amount of deflagration not already reacted during detonation of the explosive active mass Explosive material is limited by the first and the second boost charge are ignited simultaneously or with a time delay.
  • the figure shows a scalable explosive device according to the invention.
  • the scalable explosive device comprises an explosive active mass 10 in an active body shell 12 with a first detonating chain 18 comprising a first detonator 14 and a first reinforcing charge 16.
  • the explosive device further comprises a second detonating chain 24 comprising a second detonator 20 and a second reinforcing charge 22 second detonator can each be ignited electrically.
  • the pressure wave transmission means 26 in the form of a thick plate of polymethyl methacrylate, incorporated into the active body shell 12, is arranged.
  • the implementation of the explosive active mass 10 can be carried out in such a way that initially the second boost charge 22 is ignited by means of the second detonator 20.
  • the pressure wave produced by the ignition of the second boost charge 22 is transmitted to the explosive active mass 10 by the pressure wave transmission means 26, the pressure wave being attenuated depending on the dimensions of the pressure wave transmission means 26.
  • the first boost charge 16 is ignited by means of the first detonator 14, thereby triggering a detonatory conversion of the remaining explosive active mass.
  • the greater the time interval between the ignition of the second boost charge 22 and the first boost charge 16 the more explosive active mass is deflagrated and the less explosive active mass is available for detonating the explosive active mass and the lower the blasting effect.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Pressure Welding/Diffusion-Bonding (AREA)
  • Infusion, Injection, And Reservoir Apparatuses (AREA)

Claims (6)

  1. Charge explosive modulable pour un corps actif, comprenant une masse active d'explosif (10), une première chaîne d'allumage (18) munie d'une première charge d'intensification (16) destinée à déclencher une transformation explosive de la masse active d'explosif (10) et une deuxième chaîne d'allumage (24) munie d'une deuxième charge d'intensification (22) destinée à déclencher une transformation déflagrante de la masse active d'explosif (10),
    un moyen de transmission d'ondes de pression (26) reposant contre la masse active d'explosif (10) et servant à injecter dans la masse active d'explosif (10) une onde de pression émanant de la deuxième charge d'intensification (22) lors de sa détonation étant disposé entre la deuxième charge d'intensification (22) et la masse active d'explosif (10),
    caractérisée en ce que
    le moyen de transmission d'ondes de pression est disposé en vue d'éviter une action directe de la deuxième charge d'intensification (22) sur la masse active d'explosif (10) lors de la détonation de la deuxième charge d'intensification (22).
  2. Charge explosive modulable selon la revendication 1, la charge explosive comprenant un moyen qui permet un allumage simultané ou décalé dans le temps de la première (16) et de la deuxième charge d'intensification (22).
  3. Charge explosive modulable selon l'une des revendications précédentes, dans laquelle la première charge d'intensification (16) et la deuxième charge d'intensification (22) sont disposées sur des côtés opposés de la masse active d'explosif (10) en référence à un axe longitudinal à travers la masse active d'explosif (10).
  4. Charge explosive modulable selon l'une des revendications précédentes, dans laquelle le moyen de transmission d'ondes de pression (26) est du poly(méthacrylate de méthyle) (PMMA) ou une autre matière plastique.
  5. Charge explosive modulable selon l'une des revendications précédentes, dans laquelle la masse active d'explosif (10) est enveloppée dans une enveloppe de corps actif (12) qui soit forme elle-même le moyen de transmission d'ondes de pression (26), soit est intégrée dans le moyen de transmission d'ondes de pression (26).
  6. Procédé de modulation de l'effet d'une charge explosive modulable selon l'une des revendications précédentes,
    selon lequel une transformation déflagrante de la masse active d'explosif (10) est déclenchée en induisant une onde de pression dans la masse active d'explosif (10) et la quantité de masse active d'explosif (10) devant subir une transformation déflagrante est limitée par la quantité de la masse active d'explosif (10) qui n'a pas déjà subit une transformation déflagrante lors d'une détonation de la masse active d'explosif (10) en ce que la première (16) et de la deuxième charge d'intensification (22) sont allumées simultanément ou avec un décalage dans le temps.
EP14001264.2A 2013-04-13 2014-04-05 Charge explosive incrémentable Active EP2789965B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102013006375 2013-04-13

Publications (2)

Publication Number Publication Date
EP2789965A1 EP2789965A1 (fr) 2014-10-15
EP2789965B1 true EP2789965B1 (fr) 2015-07-15

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ID=50442319

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EP14001264.2A Active EP2789965B1 (fr) 2013-04-13 2014-04-05 Charge explosive incrémentable

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EP (1) EP2789965B1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102015010855A1 (de) 2015-08-18 2017-02-23 TDW Gesellschaft für verteidigungstechnische Wirksysteme mbH Vorrichtung zur Überwachung einer Zündeinrichtung
DE102019201176A1 (de) * 2019-01-30 2020-07-30 Atlas Elektronik Gmbh Kampfmittel mit einem Deflagrations-Zündmittel und Verfahren zum Betreiben eines solchen Kampfmittels

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19961204C2 (de) 1999-12-18 2003-06-26 Daimler Chrysler Ag Zündeinrichtung
DE10015070B4 (de) 2000-03-25 2005-05-04 TDW Gesellschaft für verteidigungstechnische Wirksysteme mbH Sprengladung für einen Gefechtskopf
DE10018285C2 (de) * 2000-04-13 2002-07-11 Daimler Chrysler Ag Splittergefechtskopf zur Bekämpfung technischer Ziele
US8371224B1 (en) * 2008-11-26 2013-02-12 The United States Of America As Represented By The Secretary Of The Navy Variable yield device and method of use
US8931415B2 (en) * 2010-07-29 2015-01-13 Alliant Techsystems Inc. Initiation systems for explosive devices, scalable output explosive devices including initiation systems, and related methods

Also Published As

Publication number Publication date
EP2789965A1 (fr) 2014-10-15

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