EP1046878A1 - Sicherheitsbehälter für den Transport und/oder die Lagerung von Explosionskörpern - Google Patents

Sicherheitsbehälter für den Transport und/oder die Lagerung von Explosionskörpern Download PDF

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Publication number
EP1046878A1
EP1046878A1 EP00106786A EP00106786A EP1046878A1 EP 1046878 A1 EP1046878 A1 EP 1046878A1 EP 00106786 A EP00106786 A EP 00106786A EP 00106786 A EP00106786 A EP 00106786A EP 1046878 A1 EP1046878 A1 EP 1046878A1
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EP
European Patent Office
Prior art keywords
wall
partition
container according
safety container
container
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.)
Withdrawn
Application number
EP00106786A
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English (en)
French (fr)
Inventor
Michel Vives
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.)
Giat Industries SA
Original Assignee
Giat Industries 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 Giat Industries SA filed Critical Giat Industries SA
Publication of EP1046878A1 publication Critical patent/EP1046878A1/de
Withdrawn legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B39/00—Packaging or storage of ammunition or explosive charges; Safety features thereof; Cartridge belts or bags
    • F42B39/14—Explosion or fire protection arrangements on packages or ammunition

Definitions

  • the technical sector of the present invention is that receiving containers for storing and / or transport an explosive device, such as a munition of war with a high explosive charge.
  • the container must therefore support the effects following the detonation of a munition which may contain a TNT equivalent of 1 to 2 Kg.
  • the effects direct or indirect of a possible detonation must not not be transmitted to the external environment in terms of shocks mechanical, splatter projections, overpressures air, thermal effects, or gas fumes toxic.
  • the rigid internal wall made of high-strength steel, wall which is reinforced on its external surface by a wall flexible formed of fibers resistant to elongation.
  • this container does not have resistance sufficient to detonate a high explosive device power (at least 1 to 2 kg of TNT).
  • a high explosive device power at least 1 to 2 kg of TNT.
  • the rigid material that is described is fragile to shock and an increase in resistance will go through increasing the thickness of the rigid wall which affects the lightness of the container and the ease of transport.
  • the proposed structure is not airtight and does not can provide containment of detonation products or poisonous gases or liquids emitted by ammunition.
  • the container according to the invention can resist the explosion of large-scale ammunition in achieving rapid damping of the shock wave generated by the explosion and ensuring the dissipation of energy to through layers of suitable materials.
  • the container according to the invention ensures this result without excessive mass increase and of space.
  • the container according to the invention can be adapted transport or storage of ammunition or explosive devices of various dimensions.
  • the container according to the invention is thus particularly well suited for storage and / or transport old explosive devices found on the grounds of operations, particularly from the First World War. In indeed these devices have a sensitivity that may have increased course of time, making manipulation dangerous and they are likely to spread substances or gases toxic.
  • the container according to the invention provides transport and safe storage for operators and populations.
  • the first wall can be made of a chosen metal among the following materials: mild steel, nickel, titanium.
  • the second wall can be made in at least one of the following materials: high density organic foam, per example greater than 1.2 g / cm3, composite material, polyester filled with glass fibers, filament wound glass fibers.
  • the third wall can be made of steel, titanium or in a carbon / carbon filament wound.
  • a layer of a low density material for example between 0.1 and 0.3 g / cm3, is placed between the explosive device and the first wall.
  • This low density material may consist of sand, granular vermiculite or foam polymerizable.
  • a thin bag of flexible material could be interposed between the low density material and the first wall to facilitate the extraction of the machine out of the container.
  • the container may include a second partition separate from the first partition by an expansion chamber and forming an enclosure external which is sealed with a cover.
  • the internal enclosure may be formed by the first partition, secured to a bottom and closed by a plug which is mobile by the effect of the pressure of the gases generated by an initiation of the explosive device, so as to authorize the passage of gases to the expansion chamber.
  • the movable plug can be kept applied against the first partition by a wedge of damping material disposed between the cap and the cover.
  • the damping material may be constituted by a high density synthetic foam, for example greater than 1.2g / cm3, such as polyurethane foam.
  • the relaxation room may include at least one baffle secured to the first and / or the second partition and intended to promote relaxation of the gases.
  • the second partition may include a layer of shock absorbing material.
  • the damping material may be constituted by a honeycomb structure.
  • the layer of damping material can be covered of a perforated wall.
  • the explosive devices that are targeted are generally made of a cylindrical-ogival steel casing charged with explosive and primed at one end.
  • the loading explosive may incorporate a light bulb or compartment containing a chemical.
  • the most sensitive part of the craft is the rocket including the initiation of the pyrotechnic chain transmits the detonation to the explosive from the front of the device rearward.
  • This configuration is the most breaking for the envelope of the machine, which breaks up into fragments with a speed of up to 2000 m / s.
  • the wave of detonation is transmitted under very high pressures, around 25 to 35 GPa, in contact materials under incident wave and reflected wave as a function of their nature. These nonlinear phenomena have a short duration on the order of 100 to 150 micro seconds.
  • the analytical tools make it possible to give orders of size but are insufficient to size a container. We usually end up with containers oversized with significant safety factors.
  • a container 1 according to a first embodiment of the invention is intended for contain an explosive device 2 such as ammunition.
  • the container is shown here partially in section, it has a generally cylindrical shape surrounding the ammunition.
  • first partition 3 which longitudinally surrounds the machine explosive 2
  • bottom and a cover (not shown).
  • the machine 2 is positioned radially with respect to the partition with suitable positioning means, for example example of wedges 4 made of high synthetic foam density or wood.
  • the first partition comprises at minus three walls:
  • a first wall 5 or internal wall which is made of a material which is both ductile (having good elongation capacity) and resilient (impact resistant).
  • a material will preferably be chosen having an elongation at break greater than or equal to 30% and a resilience K greater than or equal to 200 J / cm 2 .
  • This internal wall delimits the partition 3 on the side of the explosive device 2.
  • a second wall 6 or damping layer which is made of a material with high modulus of compressibility volume, i.e. for which the ratio V / Vo of the volume V (after compression) on volume Vo (before compression) is between 0.1 and 0.6 when subjected to a dynamic pressure of around 30 GPa (GigaPascals).
  • the general concept on which the invention is based is to quickly absorb the shock waves caused by detonation and not block them like the solutions provided in the prior art.
  • Amortization is obtained by dissipating the energy created by the detonation through a succession of barriers the characteristics of which are chosen so as to: on the one hand absorb some of the shock energy, and on the other hand introduce wave reflections that will be opposed to the incident wave and which will reduce its effects as a result of the combination of incident wave and reflected wave.
  • the first wall 5 will for example be made of steel soft, nickel or titanium. Its ductility and high resilience give it deformation rates high plastic which allow on the one hand to stop splinter projections and on the other hand to distribute the pressures on the following walls.
  • nickel or titanium also ensures excellent corrosion resistance in the event that it corrosive exudates may be out of the craft.
  • the efficiency of the container On the second wall 6 rests the efficiency of the container. It can be made of high density organic foam (for example greater than 1.2 g / cm3) or in a material composite allowing a high rate of volume deformation over the pressure variation range from 0 to 30 GPa, such as a polyester filled with glass fibers or a filament wound on the basis of glass fibers.
  • a material such as the V / Vo ratio for a dynamic pressure of 30 GPa is less than 0.6.
  • the third wall 7 is intended to ensure rigidity maximum delaying the deformation of its external surface. It thus ensures the maintenance of the second wall 6 and the optimal functioning thereof.
  • Figure 2 thus shows a second embodiment of the invention in which the first wall 5 of material ductile is followed by two pairs 8a and 8b, associating each: a second wall (6a or 6b) of high material compressibility module and a third wall (7a or 7b) made of rigid material.
  • This embodiment also differs from the previous one in what a layer 9 of a low density material (from 0.1 to 0.3 g / cm3) is placed between the explosive device and the first wall 5.
  • This low density material ensures a rigging of the machine explosive 2. It constitutes a sarcophagus surrounding the device explosive and which, in the event of detonation, absorbs part of kinetic energy of projection of the envelope of the machine.
  • this layer could for example use to make this layer at low density a powdery material such as sand or a vermiculite aggregate.
  • a polymerizable foam which will be injected between machine 2 and first wall 5.
  • layer 9 allows to adapt the container for all types of explosive devices, whatever their shapes and dimensions (less than the diameter of the first wall 5).
  • Layer 9 ensures complete coating of the machine and a filling of all the vacuum separating that ci of the first wall 5. This produces a damping optimal energy developed by the initiation of the craft.
  • a thin bag 10 can be placed in flexible material, for example plastic material such as polyethylene, which will be interposed between the material 9 at low density and the first wall 5.
  • plastic material such as polyethylene
  • Such an arrangement prevent the adhesion of the material 9 on the first wall 5 (if this material is a polymerizable foam) and in all cases will facilitate the extraction of the craft (with its material sarcophagus 9) out of the container.
  • a container combining a layer 9 of polymerizable foam of which the thickness will be less than the maximum half radius of the machine explosive (for example less than 20mm for a projectile of 80mm caliber), a first wall 5 in 10N8 steel from 3 to 5 mm thick and two pairs 8a, 8b identical.
  • the thickness of layer 9 makes it possible to avoid acquisition by the splinters generated by the machine of kinetic energy too important.
  • Each pair 8 may have the structure described previously and include a fiber composite wall 6 of glass / polyester resin 10 to 20 mm thick and a wall 7 in steel 35NCD16 or titanium T40 from 15 to 20 mm thick.
  • the container produced according to one or other of the modes of previous achievement effectively ensures the absorption of detonation energy with a minimized mass and a modular design adaptable to the shape and size of the explosive device.
  • the embodiment shown in Figure 3 allows in additional to ensure gas tightness of the container and liquids emitted by the craft, both before initiation only during or after this one.
  • FIG 3 a longitudinal section is shown a container 1 containing an explosive device 2, for example ammunition, arranged vertically with its most part sensitive (rocket 11) upwards, so that under the effect accidental detonation the projection of the base 12 or stopped by a solid base 1a of the container (made of steel).
  • an explosive device 2 for example ammunition
  • the container 1 comprises an internal enclosure which is formed by a first partition 13, integral with a bottom 14 and closed by a plug 15.
  • the first partition has a structure similar to that described with reference to the figure 2. It includes a first wall 5 and two pairs 8a, 8b walls 6a / 7a, 6b / 7b.
  • a layer 9 of low material density for example a polymerized foam in situ, forms a sarcophagus trapping device 2 and positioning it coaxial with the first wall 5. This material allows also to protect rocket 11 from any impact or attack outside.
  • a polyethylene bag 10 is interposed between the material 9 and the first partition 5.
  • the bottom 14 is integral with the first wall 5, it is made with the same material and has substantially the same thickness. It is obtained by flow turning.
  • the bottom 14 is separated from the solid base by a volume 16 filled with the same low density material than layer 9 and which will cushion the projection of the base 12.
  • the container 1 also comprises a external enclosure which is constituted by a second partition 17 secured to the base 1a and sealed in a sealed manner by a cover 18 which will be usefully fitted with a lifting ring 26.
  • the outer wall 7b of the first partition 13 is provided a shoulder 29 abutting against the second partition 17 secured to the base 1a, thus ensuring positioning radial of the first partition 13 relative to the second partition 17.
  • the closing means 19 will for example be a quick means and deformable such as a sleepsuit and it will have means for sealing against gases and liquids, such as joints.
  • the second partition 17 comprises a ductile external wall 20 made for example of steel of grade Z10C18 or else titanium T30.
  • a layer 21 of a gas pressure damping material for example a honeycomb made of aluminum or steel.
  • a perforated wall 22 will preferably be applied to the layer 21 of the damping material.
  • This perforated wall will made for example from A60 grade steel. It allows the times to distribute the pressure over the honeycomb and minimize wave reflections.
  • the second partition 17 is separated from the first partition 13 by a free space 23 constituting an expansion chamber.
  • the plug 15 which closes the internal enclosure has a cylindrical outer rim 15a which surrounds the first partition 13. It is kept applied in its position of closing by a wedge 24 which is interposed between the plug 15 and the cover 18.
  • the wedge 24 is made of a material compressible shock absorber, for example made of high polyurethane density (greater than 1.2 g / cm3).
  • the compression of the wedge 24 has the effect of consuming part of the energy of the gases, the expansion chamber 23 is also designed to absorb the impact energy of gas.
  • the volume of the expansion chamber 23 is first of all chosen so as to ensure sufficient expansion of the gases which is compatible with the holding of the second partition 17.
  • chamber 23 can advantageously be fitted with at least one baffle 25 intended to encourage relaxation.
  • Each baffle 25 consists of a portion of sheet metal conical fixed to the external surface of the wall 7b by a suitable means (for example by welding).
  • the sheets of the baffles will for example be sheets of steel about 2 mm thick.
  • the gases entering the expansion chamber 23 will have the effect of deforming the baffles which will absorb so part of their energy.
  • Pressure waves from gases will also be reflected by the surfaces of the baffles as well as through the perforated wall 22.
  • the pressure waves reflected by the wall 22 will combine with the waves of incident pressure on bulkhead 17, reducing the effect of overpressures.
  • honeycomb damping material 21 will ensure by elsewhere a damping of the pressure waves reaching the wall 20 of the second partition 17.
  • baffles 25 and a layer 21 shock absorbing material allows rapid absorption the energy of the gases, therefore the impulses and avoiding the peaks pressure related to reflections of overpressure waves.
  • a container can be produced, the first partition of which will have the structure described with reference to FIG. 2 and the second partition 17 of which will consist of a perforated wall 22 of 3mm thick comprising 500 to 600 cylindrical holes per m 2 of 10 mm in diameter, applied to a layer 21 15 mm thick of a honeycomb, itself applied to an external wall 20 of 3 to 5 mm thickness of Z10C18 steel or T30 titanium.
  • a drain valve 27 is provided on the cover 18. This purge could be advantageously connected by a permanently or temporarily to a means of measuring the pressure and toxicity analysis of the gases contained in the container.
  • a drain valve 28 is provided at the bottom of the container to allow the evacuation of liquids present in the expansion volume 23.
  • This specific treatment of the detonation phenomenon allows to ensure the desired function with a mass and a small footprint.
  • Wall sets 6 and 7 could also be manufactured with progressive diameters allowing, for a container having a given external enclosure, the placement different internal enclosures, adapted to the nature of the vehicle to be transported or stored.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
EP00106786A 1999-04-23 2000-03-30 Sicherheitsbehälter für den Transport und/oder die Lagerung von Explosionskörpern Withdrawn EP1046878A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9905228A FR2792623B1 (fr) 1999-04-23 1999-04-23 Conteneur de securite pour le transport et/ou le stockage d'engins explosifs
FR9905228 1999-04-23

Publications (1)

Publication Number Publication Date
EP1046878A1 true EP1046878A1 (de) 2000-10-25

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EP00106786A Withdrawn EP1046878A1 (de) 1999-04-23 2000-03-30 Sicherheitsbehälter für den Transport und/oder die Lagerung von Explosionskörpern

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EP (1) EP1046878A1 (de)
FR (1) FR2792623B1 (de)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2875294A1 (fr) 2004-09-15 2006-03-17 Sema Sa Dispositif de confinement d'une pluralite d'objets explosifs
WO2007062722A1 (de) * 2005-11-30 2007-06-07 Atlas Elektronik Gmbh Vorrichtung zum schutz einer sprengstoffsektion eines unterwasserlaufkörpers
GB2445037A (en) * 2006-12-18 2008-06-25 Secr Defence Foam blast mitigation barrier
WO2008127441A3 (en) * 2006-11-30 2009-02-05 Raytheon Co Hermetic covering system and method for a projectile
US7790252B2 (en) * 2007-01-12 2010-09-07 Khosrow Nematollahi Armoring device for protecting an object
US8028830B1 (en) * 2006-01-13 2011-10-04 The United States Of America As Represented By The Secretary Of The Navy Anti-ballistic composite structure for ordinance
CN103376033A (zh) * 2013-07-22 2013-10-30 蒋友明 抗爆容器
CN111189370A (zh) * 2020-02-24 2020-05-22 安徽工程大学 一种边坡爆破减震试验装置及方法
CN113446909A (zh) * 2021-06-29 2021-09-28 中国人民解放军国防科技大学 低当量有毒爆炸物气囊回收式防爆结构

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITMI20131980A1 (it) * 2013-11-27 2015-05-28 Roberto Vassale Contenitore di sicurezza amagnetico per il trasporto e lo stoccaggio di esplosivo deflagrante o dispositivi deflagranti

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996007073A1 (en) * 1994-08-29 1996-03-07 International Mul-T-Lock B.V. Security container
US5654053A (en) * 1995-06-15 1997-08-05 The United States Of America As Represented By The Secretary Of The Navy High-energy-absorbing enclosure for internal explosion containment
FR2759353A1 (fr) * 1997-02-11 1998-08-14 Cabines Denizet Sa Container de securite anti-deflagration
FR2765198A1 (fr) * 1997-06-30 1998-12-31 Cabines Denizet Sa Container anti-deflagration

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996007073A1 (en) * 1994-08-29 1996-03-07 International Mul-T-Lock B.V. Security container
US5654053A (en) * 1995-06-15 1997-08-05 The United States Of America As Represented By The Secretary Of The Navy High-energy-absorbing enclosure for internal explosion containment
FR2759353A1 (fr) * 1997-02-11 1998-08-14 Cabines Denizet Sa Container de securite anti-deflagration
FR2765198A1 (fr) * 1997-06-30 1998-12-31 Cabines Denizet Sa Container anti-deflagration

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
BEITZ W, KÜTTNER K-H: "Taschenbuch für den Maschinenbau / Dubbel", 1987, SPRINGER-VERLAG, BERLIN, XP002125416 *

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1637830A1 (de) 2004-09-15 2006-03-22 Sema Vorrichtung zur Abkapselung einer Vielzahl von explosiven Gegenständen
FR2875294A1 (fr) 2004-09-15 2006-03-17 Sema Sa Dispositif de confinement d'une pluralite d'objets explosifs
WO2007062722A1 (de) * 2005-11-30 2007-06-07 Atlas Elektronik Gmbh Vorrichtung zum schutz einer sprengstoffsektion eines unterwasserlaufkörpers
US8028830B1 (en) * 2006-01-13 2011-10-04 The United States Of America As Represented By The Secretary Of The Navy Anti-ballistic composite structure for ordinance
WO2008127441A3 (en) * 2006-11-30 2009-02-05 Raytheon Co Hermetic covering system and method for a projectile
US8651023B2 (en) 2006-11-30 2014-02-18 Raytheon Company Hermetic covering system and method for a projectile
GB2445037A (en) * 2006-12-18 2008-06-25 Secr Defence Foam blast mitigation barrier
GB2445037B (en) * 2006-12-18 2010-09-29 Secr Defence A barrier
US7790252B2 (en) * 2007-01-12 2010-09-07 Khosrow Nematollahi Armoring device for protecting an object
CN103376033A (zh) * 2013-07-22 2013-10-30 蒋友明 抗爆容器
CN103376033B (zh) * 2013-07-22 2015-03-18 蒋友明 抗爆容器
CN111189370A (zh) * 2020-02-24 2020-05-22 安徽工程大学 一种边坡爆破减震试验装置及方法
CN111189370B (zh) * 2020-02-24 2024-06-11 安徽工程大学 一种边坡爆破减震试验装置及方法
CN113446909A (zh) * 2021-06-29 2021-09-28 中国人民解放军国防科技大学 低当量有毒爆炸物气囊回收式防爆结构
CN113446909B (zh) * 2021-06-29 2022-03-25 中国人民解放军国防科技大学 低当量有毒爆炸物气囊回收式防爆结构

Also Published As

Publication number Publication date
FR2792623A1 (fr) 2000-10-27
FR2792623B1 (fr) 2001-06-15

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