GB2518337A - Warhead - Google Patents
Warhead Download PDFInfo
- Publication number
- GB2518337A GB2518337A GB8826551.7A GB8826551A GB2518337A GB 2518337 A GB2518337 A GB 2518337A GB 8826551 A GB8826551 A GB 8826551A GB 2518337 A GB2518337 A GB 2518337A
- Authority
- GB
- United Kingdom
- Prior art keywords
- charge
- warhead
- accordance
- activator
- damping element
- 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
Links
- 238000013016 damping Methods 0.000 claims abstract description 47
- 239000012190 activator Substances 0.000 claims abstract description 30
- 238000005474 detonation Methods 0.000 claims abstract description 17
- 230000000694 effects Effects 0.000 claims description 9
- 239000004033 plastic Substances 0.000 claims description 7
- 229920003023 plastic Polymers 0.000 claims description 7
- 229910000831 Steel Inorganic materials 0.000 claims description 5
- 239000011796 hollow space material Substances 0.000 claims description 5
- 229910052751 metal Inorganic materials 0.000 claims description 5
- 239000002184 metal Substances 0.000 claims description 5
- 239000010959 steel Substances 0.000 claims description 5
- 238000010276 construction Methods 0.000 claims description 2
- 239000004429 Calibre Substances 0.000 claims 2
- 229920002994 synthetic fiber Polymers 0.000 claims 1
- 230000015572 biosynthetic process Effects 0.000 abstract description 2
- 239000004411 aluminium Substances 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 239000012634 fragment Substances 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- NMFHJNAPXOMSRX-PUPDPRJKSA-N [(1r)-3-(3,4-dimethoxyphenyl)-1-[3-(2-morpholin-4-ylethoxy)phenyl]propyl] (2s)-1-[(2s)-2-(3,4,5-trimethoxyphenyl)butanoyl]piperidine-2-carboxylate Chemical compound C([C@@H](OC(=O)[C@@H]1CCCCN1C(=O)[C@@H](CC)C=1C=C(OC)C(OC)=C(OC)C=1)C=1C=C(OCCN2CCOCC2)C=CC=1)CC1=CC=C(OC)C(OC)=C1 NMFHJNAPXOMSRX-PUPDPRJKSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000013467 fragmentation Methods 0.000 description 1
- 238000006062 fragmentation reaction Methods 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000000979 retarding effect Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
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
Abstract
In a tandem projectile arrangement for attacking targets provided with active armouring, as a result of the energy from the detonation of the activator charge the formation of the hollow charge jet of the subsequent main hollow charge may be seriously impeded. This is avoided as the main hollow charge 2 can be detonated with a time lag and without interference as a result of the fact that between the activator charge 1 and the main hollow charge 2 at least one plastically deformable damping element 3,4 is provided which dissipates the rearward directed energy of the activator charge.
Description
Warhead This invention relates to a warhead for use against targets provided with active armourings.
A warhead is known from DR 36 01 051. This warhead has a preliminary hollow charge, a main hollow charge and a vapour shield between the preliminary and the main hollow charge for the purpose of retarding the detonation of the main hollow charge after that of the preliminary hollow charge. A sleeve is mounted on the vapour shield and displaceable in relation to the main hollow charge with a device which is situated at a distance from the sleeve and which on impact of the latter activates the detonation device of the main hollow charge. It is regarded as a disadvantage of this warhead that the preliminary hollow charge includes a pointed conical insert which, as is known, can only take effect when the hollow charge is detonated at a very short stand-off distance from the target. If the preliminary hollow charge is required to take effect over a longer distance (detonation distance) the diameter and the mass of the charge have to be increased considerably. This in turn results, on the detonation of the preliminary hollow charge, in a large amount of rearwardly directed energy and subjects the main hollow charge to interference. For the protection of the hollow charge spike, therefore, a vapour shield of large dimensions (diameter and thickness) is required, the purpose being to prevent vapours and splinters from finding their way into the main hollow charge zone. A further drawback resides in the fact that after the detonation of the main hollow charge only very little free space is left for the formation of the hollow charge spike, which must immediately penetrate the thick vapour shield, thus seriously reducing the effect on the target.
It is therefore an object of this invention to obviate the aforementioned drawback of the warhead of this type and to enable the rearward interference suffered by the subsequent main hollow charge with the pointed conical insertas a result of the detonation of the activator chargeto be largely eliminated, thus ensuring the maximum effect of the main hollow charge on the armoured target.
According to this invention there is provided a warhead for use against targets provided with active armourings, the warhead having a front activator charge, a rear main hollow charge and a vapour shield plate, wherein between the activator charge and the main hollow charge at least one plastically deformable damping element is provided by which the rearwardly directed energy from the detonation of the activator charge is dissipated in such a way that the main hollow charge can be detonated without impediment after a time lag.
Due to the provision of two successive plastically deformable damping elements between the activator charge and the main hollow charge the rearward energy from.the detonation of the activator charge is consumed or reduced in such a way that the main hollow charge can be detonated after a time lag and without interference.
The special construction of the rear damping element ensures that the jet of the main hollow charge can form in the optimum manner and exert the full effect on the target after penetrating the very thin vapour shield.
The invention will be explained in more detail and described with reference to the accompanying drawing showing an exemplary embodiment.
Referring to the drawing, 1 is an activator charge and 2 is a main hollow charge of a warhead arranged on the tandem principle. A front damping element 3 is combined with a rear damping element 4 to form the donstructiona]. connection between the activator charge 1 and the main hollow charge 2. A detonation and safety device 18 is provided on the rear of the activator charge, which may have a flat conical or projectile-forming lining. The detonator of the activator charge is constructed as a time or proximity fuse and, when operated, likewise activates the detonator of the main hollow charge with adjustable time lag.
The front part of the front damping element 3 has a recess 6 facing forwards and containing the activator charge. Beyond the activator charge the recess narrows in the form of a funnel, producing a hollow space 8 narrowing conically towards the rear. The front damping element 3 likewise has a cylindrical rear recess 10 in which the rear damping element is inserted. This recess also contains a vapour shield 11 situated between the front damping element 3 and the rear damping element 4 and consisting of thin steel about 3-4 mm in thickness.
The rear damping element 4 takes the form of a damping tube 14 having a comparatively thick wall and consisting, for example of aluminium, copper or a similarly ductile metal. Two or if necessary more annular grooves are provided in the outside surface of the damping element 14 thus forming thick zones 15 in the wall in addition to thin zones 16.
The entire system consisting of activator charge 1, front damping element 3and rear damping element 4 is connected to the main hollow charge via a funnel structure 12. The said funnel structure 12 preferably consists of an aluminium funnel having a rear cylindrical zone mounted over the housing of the main hollow charge.
The front damping element 3 preferably comprises a plastic cylinder produced by the injection moulding process and having the front and rear recesses 6 and 10.
When the activator charge is detonated at a distance of about 3 to O.Sm in front of a target provided with active armouring the energy directed towards the rear of the shock wave of the detonation is first of all reduced owing to the plastic deformation of the front damping element 3 or the complete fragmentation or disintegration thereof due to the conical shape of the hollow space 8 and is removed sldeways from the zone of action of the subsequent main hollow charge. The plastic body, for example of PVC, receives most of the splinters flying towards the rear and disintegrates into very small fragments as a result of the detonation. This disintegration already consumes the greater part of the rearward directed energy, which is additionally deflected by the special conical shape of the hollow space. The damping tube 14 is completed, in the front by the steel plate 11, so that no vapours and particles (fragments) of the plastic body or of the activator charge can find their way into the interior of the damping tube 14 or of the light metal structure 12. The damping effect of the plastic body is sufficient to ensure that only a few splinters make impact on the steel closure plate and that the vapour shield itself only yields to a very small extent.
The residual impulse transmitted to the vapour shield 1]. is introduced into the damping tube 14, where it is completely consumed. The damping tube 14 Is so constructed that defined upsetting sections can form without causing any appreciable internal cross-section constriction or asymmetrical deformations. The defined reductions in the cross section in the wall of the tube are such that the kinetic energy transmitted is converted into plastic deformation and c&nsumed without any major alteration to the hollow cross section of the tube. The damping properties are dimensioned to ensure that the remaining effects on the dimensionally stable light metal structure 12 and on the main hollow charge 2 with the detonation device are so slight that they are not subject to any undesirable influences.
The present invention offers the following advantages: the tandem warhead is characterized by a very moderate weight; the jet of the main hollow charge can form unimpeded; the vapour shield is of moderate diameter and thickness; ample detonation stand-offs are obtainable; the front damping element is free of residue., and the damping tube is preserved with the hollow cross sebtion and does not need to be penetrated by the jet of the main hollow charge.
10. Due to all these factors the reduction in the performance of the main hollow charge is kept to a minimum and the maximum effect is exerted on the target.
Claims (4)
- CLAIMS1. Warhead for use against targets provided with active armourings, the warhead having a front activator charge, a rear main hollow charge and a vapour shield plate, wherein between the activator charge and the main hollow charge at least one plastically. deformable damping element is provided by which the rearwardly directed energy from the detonation of the activator charge is dissipated in such a way that the main hollow charge can be detonated without impediment after a time lag.
- 2. Warhead in accordance with Claim 1, wherein two plastically deformable damping elements are provided in succession between the activator charge and the main hollow charge said elements consuming the rearwardly directed energy from the detonation of the activator charge in such a way that the main hollow charge can be detonated without impediment after a time lag.ki/tft&tt
- 3. Warhead in accordance with Claim 2,cthe frontmost A o damping element v.ing a front recess to accommodate at least part of the activator charge followed by a hollow space narrowing towards the rear in the manner of a cone or funnel.
- 4. Warhead in accordance with Claim 2 or 3 wherein the frontmost damping element has a rear recess serving to accommodate at least part of the second tubular damping element.S5. Warhead in accordance with Claim 2 or 3 or 4 wherein the frontmost damping element comprises a synthetic material.8. Warhead in accordance with any preceding Claim 2 to wherein the vapour shield is in the form of a thiEi flat steel plate located between the two damping elements 7. Warhead in accordance with any preceding Claim 1 to 6 wherein a tunnel-shaped construction serving to accommodate a second damping element towards the front, is provided in front of the main hollow charge.8. Warhead in accordance with Claim 7, wherein the second damping element is constructed as a damping tube with wall thickness zones which vary over the length and with a diameter smaller than or approximately equal to half the calibre diameter of the main hollow charge.9. Warhead in accordance with Claim 8, wherein the -10 -damping tube is a light metal tube with annular grooves 16 which reduce the wall thickness.10. Warhead constructed as described herein and as exemplified in the drawings.C Amendments to the claims have been filed as followsC UCLAIMS1. Warhead for use against targets provided with active armourings, the warhead having a front activator charge, a rear main hpllow charge and a means for reducing the effect of the activator charge on the main charge, wherein between the activator charge and the main hollow charge two plastically deformable damping elements are provided in succession by which the rearwardly directed energy from the detonation of the activator charge is dissipated in such a way that the main hollow charge can be detonated without impediment after a time lag, the foremost damping element supporting the activator charge and the rearmost damping element comprising a tube with the wall thereof of varying thickness along the length.2. warhead in accordance with Claim 1, wherein the frontmost damping element has a front recess to r -acconinodate at least part of the activator charge followed by a hollow space narrowing towards the rear in the manner of a cone or funnel.3. warhead in accordance with Claim 1 or 2 wherein the frontmost damping element has a rear recess serving to acommodate at least part of the rearmost tubular damping C. Ui-element.4. warhead in accordance with Claim 1 or 2 or 3 wherein the frontmost damping element comprises a synthetic plastics materia].S. Warhead in accordance with any preceding Claim 1 to 4 wherein a vapour shield in the form of a thin flat steel plate is located between the two damping elements 6. warhead in accordance with any preceding Claim 1 to 6 wherein a funnel-shaped structure supports and connects the second damping clement to the front of the main hollow charge.7. warhead in accordance with Claim 6, wherein the second damping element has a wall thickness which varies over the length and with a diameter smaller than or r -approximately equal to half the calibre diameter of the main hollow charge.8. Warhead in accordance with Claim 7, wherein the tube is a light metal tube with annular grooves which, reduce the wall thickness.9. Warhead constructed as described herein and as exemplified in the drawings.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE3740412A DE3740412C1 (en) | 1987-11-28 | 1987-11-28 | Warhead for use against targets with active armour |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| GB8826551D0 GB8826551D0 (en) | 2013-12-25 |
| GB2518337A true GB2518337A (en) | 2015-03-25 |
| GB2518337B GB2518337B (en) | 2016-03-23 |
Family
ID=6341497
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GBGB8820963.0A Ceased GB8820963D0 (en) | 1987-11-28 | 1988-08-07 | |
| GB8826551.7A Expired - Lifetime GB2518337B (en) | 1987-11-28 | 1988-11-14 | Warhead |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GBGB8820963.0A Ceased GB8820963D0 (en) | 1987-11-28 | 1988-08-07 |
Country Status (7)
| Country | Link |
|---|---|
| DE (1) | DE3740412C1 (en) |
| FR (1) | FR2727513B1 (en) |
| GB (2) | GB8820963D0 (en) |
| IT (1) | IT8848599A0 (en) |
| NO (1) | NO301190B1 (en) |
| PT (1) | PT89096A (en) |
| TR (1) | TR23268A (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE507558C2 (en) * | 1995-01-23 | 1998-06-22 | Bofors Ab | Grenade with multi-charges |
| DE19827171A1 (en) * | 1998-06-18 | 1999-12-23 | Dynamit Nobel Ag | Weapon, especially anti-tank weapon |
| FR2953009A1 (en) * | 2009-11-26 | 2011-05-27 | Nexter Munitions | MILITARY HEAD WITH TANDEM LOADS |
| DE102020001784A1 (en) * | 2020-03-17 | 2021-09-23 | Diehl Defence Gmbh & Co. Kg | Projectile, device arrangement and method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0201433A1 (en) * | 1985-05-10 | 1986-12-17 | ETAT-FRANCAIS représenté par le DELEGUE GENERAL POUR L'ARMEMENT (DPAG) | Armour-perforating projectile |
| EP0238715A1 (en) * | 1986-02-21 | 1987-09-30 | Messerschmitt-Bölkow-Blohm Gesellschaft mit beschränkter Haftung | War head |
| US4714022A (en) * | 1984-09-05 | 1987-12-22 | Etat Francais | Warhead with tandem shaped charges |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2559896B1 (en) * | 1984-02-20 | 1987-09-25 | France Etat Armement | DELAY INITIATION FOR MILITARY HEAD WITH FORMED LOADS MOUNTED IN TANDEM |
| DE3540021A1 (en) * | 1985-11-12 | 1987-05-21 | Messerschmitt Boelkow Blohm | Multi-element shaped-charge lining |
| DE3601051C1 (en) * | 1986-01-16 | 1987-06-11 | Messerschmitt Boelkow Blohm | Warhead |
-
1987
- 1987-11-28 DE DE3740412A patent/DE3740412C1/en not_active Expired - Fee Related
-
1988
- 1988-08-07 GB GBGB8820963.0A patent/GB8820963D0/en not_active Ceased
- 1988-11-14 GB GB8826551.7A patent/GB2518337B/en not_active Expired - Lifetime
- 1988-11-23 FR FR8815255A patent/FR2727513B1/en not_active Expired - Fee Related
- 1988-11-25 PT PT89096A patent/PT89096A/en unknown
- 1988-11-25 IT IT8848599A patent/IT8848599A0/en unknown
- 1988-11-25 NO NO885284A patent/NO301190B1/en unknown
-
1989
- 1989-01-17 TR TR3989D patent/TR23268A/en unknown
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4714022A (en) * | 1984-09-05 | 1987-12-22 | Etat Francais | Warhead with tandem shaped charges |
| EP0201433A1 (en) * | 1985-05-10 | 1986-12-17 | ETAT-FRANCAIS représenté par le DELEGUE GENERAL POUR L'ARMEMENT (DPAG) | Armour-perforating projectile |
| EP0238715A1 (en) * | 1986-02-21 | 1987-09-30 | Messerschmitt-Bölkow-Blohm Gesellschaft mit beschränkter Haftung | War head |
Also Published As
| Publication number | Publication date |
|---|---|
| GB8820963D0 (en) | 2013-09-11 |
| NO301190B1 (en) | 1997-09-22 |
| GB8826551D0 (en) | 2013-12-25 |
| TR23268A (en) | 1989-08-04 |
| NO885284L (en) | 1995-12-01 |
| GB2518337B (en) | 2016-03-23 |
| PT89096A (en) | 1988-12-01 |
| FR2727513A1 (en) | 1996-05-31 |
| DE3740412C1 (en) | 1996-04-25 |
| FR2727513B1 (en) | 1998-05-07 |
| IT8848599A0 (en) | 1988-11-25 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PE20 | Patent expired after termination of 20 years |
Expiry date: 20081113 |