EP1521052B1 - Panzergeschoss - Google Patents

Panzergeschoss Download PDF

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Publication number
EP1521052B1
EP1521052B1 EP04292218A EP04292218A EP1521052B1 EP 1521052 B1 EP1521052 B1 EP 1521052B1 EP 04292218 A EP04292218 A EP 04292218A EP 04292218 A EP04292218 A EP 04292218A EP 1521052 B1 EP1521052 B1 EP 1521052B1
Authority
EP
European Patent Office
Prior art keywords
bars
insert
perforating
penetration
ammunition 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.)
Active
Application number
EP04292218A
Other languages
English (en)
French (fr)
Other versions
EP1521052A1 (de
Inventor
Nicolas Eches
Dominique Bouchaud
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
Priority to EP06076213A priority Critical patent/EP1701131B1/de
Publication of EP1521052A1 publication Critical patent/EP1521052A1/de
Application granted granted Critical
Publication of EP1521052B1 publication Critical patent/EP1521052B1/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

Definitions

  • the technical field of the invention is that of ammunition allowing the destruction of highly protected targets by a wall for example of concrete.
  • the body piercing this ammunition has a massive insert that is embedded in the body material.
  • This insert is made of a dense and mechanically resistant alloy chosen for example from refractory materials and their alloys (tungsten, tantalum, uranium).
  • the body material is formed of steel that is cast around the insert.
  • This ammunition has the disadvantage of being complex to manufacture. It is first of all delicate and expensive to produce a dense core of large diameter (greater than 90 mm) and having high mechanical characteristics in a reproducible manner (density greater than 13, yield strength greater than 1000 mega pascals). Indeed, these materials are used in the form of powders by compression techniques.
  • the patent WO-87/07708 discloses a piercing projectile comprising an envelope and a core of heavy material. This projectile is completed by a cap of light material (plastic or aluminum) empty or filled with incendiary material. No insert is provided in the cap and therefore no special provision is provided.
  • the patent FR-2771496 describes a conventional projectile comprising a heavy body of tungsten with an element before aluminum desiccator transmitting the projectile a solicitation of impact. No insert is provided in this element before and no precision is made relative to its density relative to the body.
  • the munition according to the invention is of simplified manufacture.
  • the munition according to the invention makes it possible to ensure the perforation of a concrete target regardless of the angle of impact on the target.
  • the subject of the invention is a perforating munition comprising a penetration body delimiting an internal cavity closed by a base, the penetration body comprising a front tip comprising at least one insert integral with the tip, said insert being disposed in a housing opening out of the body, characterized in that the inserts are shaped in segments arranged radially around an axial extension of the body, said segments being secured to the body by a connecting means, said body being made of a material having an elastic limit greater than or equal to 1200 Mega Pascals and said insert being made of a material with high mechanical characteristics, denser than that of the body.
  • the connecting means may comprise at least one ring surrounding the inserts.
  • This perforating munition may also include a dense alloy nose disposed at the end of the axial extension of the body and having a rear surface bearing on the segments.
  • each insert may be constituted by a substantially cylindrical bar housed in a bore of the penetration body.
  • the perforating munition may thus also include an axial insert having a front tip extending the penetration body.
  • This munition may then comprise a charge of propellant powder for ejecting the insert out of the penetration body.
  • the invention also relates to a perforating munition comprising a penetration body delimiting an internal cavity closed by a base, the penetration body comprising a front tip comprising inserts integral with the tip, said inserts being arranged in a housing opening to the outside of the body, characterized in that the inserts are shaped in at least one ring of bars regularly arranged around an axis of the penetration body, said bars being arranged radially around an axial extension of the body, said bars being secured to the body by a connecting means, said body being made of a material having a yield strength greater than or equal to 1200 Mega Pascals and said insert being made of a material with high mechanical characteristics, denser than that of the body.
  • the ammunition can thus comprise two crowns of bars regularly arranged around an axis of the penetration body.
  • the ends of the bars may instead be projecting outside the penetration body.
  • Each bar may have its axis inclined relative to the axis of the penetration body.
  • the ends of the bars of a crown and another ring and / or an axial bar may be substantially in the same plane.
  • the internal cavity may contain at least one explosive charge.
  • a perforating munition 1 according to one embodiment of the invention comprises a penetration body 2 which delimits an internal cavity 3 closed by a base 4.
  • This ammunition could be an air / ground bomb or a missile or a military missile head. It will have a diameter greater than 100 mm and a length of the order of 1.5 m.
  • it may include a rear portion (not shown) incorporating a thruster which will confer a range or a given speed.
  • the internal cavity 3 contains an explosive charge 5 which can be initiated by a fuse 6 disposed in the vicinity of the base 4.
  • the fuze will be designed to ensure the detection of the crossing of a wall and then to initiate the explosive charge once this wall crossed.
  • Such rockets are well known to those skilled in the art. For example, one can refer to the patent US5255608 which describes such a rocket.
  • the penetration body 2 comprises a front tip 2a which is extended by a rear cylindrical portion 2b delimiting the internal cavity 3.
  • This body is made of a material with high mechanical characteristics, that is to say a material whose elastic limit is greater than or equal to 1200 Mega Pascals.
  • a material with high mechanical characteristics that is to say a material whose elastic limit is greater than or equal to 1200 Mega Pascals.
  • 35NCD16 steel may be used.
  • the front tip 2a comprises inserts 7 made of a denser material than that of the body 2.
  • inserts 7 are made of a dense material with high mechanical characteristics.
  • a material with a density greater than or equal to 17 and having a yield strength greater than or equal to 1000 mega pascals will be chosen.
  • the inserts 7 are here shaped in segments arranged radially around an axial cylindrical axial extension 8 of the body 2.
  • each segment is in contact with the body 2, on the one hand at the axial extension 8 and on the other hand with a shoulder 9 of the body 2.
  • the free space surrounding the axial extension 8 thus constitutes a housing for the inserts.
  • Each insert 7 is also in contact with two other neighboring inserts.
  • the set of inserts thus forms the ogivated part of the front tip 2a of the penetration body 2.
  • the inserts 7 are made integral with the body by a connecting means which comprises at least one ring 10 surrounding the inserts 7. This ring will be made of steel. It will be housed in a groove 11 formed by the juxtaposition of notches carried by each insert.
  • the munition 1 also comprises a nose 12 which is also made of a dense alloy. This nose is fixed to an end 14 of smaller diameter carried by the axial extension 8 of the body 2.
  • the nose 12 has a rear surface 13 resting on the inserts 7.
  • the nose 12 is fixed on the end 14 for example by threading. It makes it possible to transmit to the various inserts 7 the shock during the impact on a target.
  • the munition according to the invention combines a large diameter warhead (greater than 90 mm) and a large perforating capacity with a steel body whose sole function is to ensure the carrying of the explosive charge and the maintenance of perforating inserts.
  • the inserts 7 have reasonable dimensions (section of the order of 2000 mm 2 to 6000 mm 2 ) which allows their manufacture according to the sintering techniques already used for the artillery arrows projectiles.
  • Figure 2 shows a piercing ammunition 1.
  • This piercing ammunition differs from the previous one only by the structure of the front tip 2a.
  • the front tip 2a here comprises an axial bore 15 inside which is positioned an insert 7 having the shape of a substantially cylindrical bar and made of a material denser than that of the body 2.
  • the front tip 16 of this insert has an ogive shape that extends the penetration body 2.
  • This insert 7 will thus have a diameter of the order of 30 to 40 mm for a penetration body 2 of diameter 90 mm. Its manufacture is thus facilitated.
  • the implementation of a tungsten alloy with high mechanical characteristics makes it possible to confer on this point a perforating character and not mere ballast. This improves the perforation capabilities of the ammunition for a given mass.
  • the ammunition shown in FIG. 3 also comprises a single insert 7 made of dense material disposed in an axial bore 15.
  • This insert 7 has an internal cavity 17 inside which is disposed a charge of propellant powder 18.
  • a device 19 for igniting this charge is housed in the body 2. It is connected by a wire connection 20 to the rocket 6.
  • the latter will then include a chronometric module or a proximity detection module (connected to an antenna not shown integral with the body's warhead 2) which will trigger the ignition of the propellant charge 18 before the impact on a target and at a distance from it of the order of 3 to 4 calibers.
  • a chronometric module or a proximity detection module connected to an antenna not shown integral with the body's warhead 2 which will trigger the ignition of the propellant charge 18 before the impact on a target and at a distance from it of the order of 3 to 4 calibers.
  • the propellant charge 18 will ensure the ejection of the insert 7 out of the penetration body 2. It will therefore be propelled towards the target.
  • the speed differential between insert 7 and the body 2 will be of the order of 200 m / s. Such an arrangement increases the perforation capabilities of the munition without increasing its speed.
  • the insert will ensure the drilling of a pre-hole in the target, the penetration body will then impact the target at this pre-hole.
  • Figures 4a, 4b and 4c show another embodiment of a perforating munition according to the invention.
  • This mode differs from the previous ones only in the structure of the piercing head 2a which here comprises several bars 7a, 7b, 7c set in bores arranged in the body of the tip 2a.
  • Each bar 7a, 7b, 7c is cylindrical and the axis of its bore is parallel to the axis 21 of the piercing head 2a.
  • the bars 7a and 7b are thus distributed in two concentric rings surrounding the axis 21 of the perforating head.
  • a bar 7c also occupies a coaxial bore to the head 2a (see also Figure 4c).
  • first ring or middle ring comprising eight bars 7b regularly distributed around the axis 21 and a second ring or outer ring comprising sixteen bars 7a regularly distributed about the axis 21.
  • the diameters of the peripheral bars 7a are here lower than those of the middle bars 7b.
  • the diameters of the different bars may be identical or different for reasons of organization of the perforating head. The goal is to obtain the highest overall density for the piercing head.
  • the diameters of the bars may be between 10 mm and 30 mm.
  • the bars are still made of a dense material, for example a tungsten alloy obtained by sintering. Because of the reduced diameter for the bars, we can here to adopt a material with even higher mechanical characteristics, for example a tungsten alloy whose elastic limit will be greater than or equal to 1500 Mega Pascals.
  • the body of the heads 2a is made of steel.
  • This embodiment makes it possible to easily obtain a front tip 2a having a high density. It is indeed easier to make dense bars of reduced diameter (of the order of 10 to 30 mm) than to achieve a large diameter front tip (greater than 150 mm) of such a sintered material.
  • FIGS. 5a and 5b show another embodiment which differs from the previous one only in the shape of the bars 7.
  • each bar therefore has a point 22 which extends outside the outer surface ogivée of the front tip 2a.
  • the axes of the bars 7a, 7b and 7c are again all parallel to the axis 21 of the ammunition.
  • FIGS. 6a and 6b show another embodiment similar to that of FIGS. 5a and 5b but in which each bar 7a or 7b has its axis 23a or 23b inclined with respect to the axis 21 of the penetration body 2.
  • the bars 7a of the outer ring have an axis 23a which is inclined at an angle ⁇ of the order of 20 ° to 30 °.
  • the bars 7b of the middle ring have an axis 23b which is inclined by an angle ⁇ of the order of 10 ° to 15 °.
  • This arrangement also makes it possible to favor the attachment of the front tip 2a on the target during an impact with an incidence.
  • this embodiment makes it possible to increase the attachment capacities without increasing the masses or the diameters of the bars 7.
  • FIG. 7a shows another embodiment similar to that of FIGS. 5a and 5b but in which the bars 7b of the middle ring have a length such that their tip 22 is substantially at the point 22 of the axial bar 7c (therefore at the level of the same plane 24).
  • Such an embodiment makes it possible to ensure simultaneous embrittlement of the target at several points of impact. This improves the perforation.
  • FIG. 7b represents an embodiment similar to that of FIG. 7a but in which all the bars have a length such that their point 22 is substantially at the point 22 of the axial bar 7c (therefore at the same plane 24 ).
  • the explosive charge 5 with a load of a different nature, for example a incendiary charge or one or more explosive and / or incendiary sub-munitions ejected after perforation of the target.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Portable Nailing Machines And Staplers (AREA)
  • Supply Devices, Intensifiers, Converters, And Telemotors (AREA)
  • Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
  • Powder Metallurgy (AREA)
  • Preliminary Treatment Of Fibers (AREA)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
  • Medicines Containing Material From Animals Or Micro-Organisms (AREA)

Claims (13)

  1. Panzerbrechende Munition (1), die einen Eindringkörper (2) umfasst, der einen durch einen Geschoßboden (4) geschlossenen inneren Hohlraum (3) begrenzt, wobei der Eindringkörper (2) eine vordere Spitze (2a) enthält, die wenigstens einen Einsatz (7, 7a, 7b, 7c) umfasst, der fest mit der Spitze (2a) verbunden ist, wobei der genannte Einsatz in einer Aufnahme angeordnet ist, die in die Außenseite des Körpers mündet, dadurch gekennzeichnet, dass die Einsätze (7) in Segmenten gestaltet sind, die radial um eine axiale Verlängerung (8) des Körpers (2) herum angeordnet sind, wobei die genannten Segmente durch ein Verbindungsmittel fest mit dem Körper (2) verbunden sind, wobei der genannte Körper aus einem Material ausgeführt ist, das eine Elastizitätsgrenze von größer oder gleich 1200 Megapascal besitzt und wobei der genannte Einsatz aus einem Material mit hohen mechanischen Eigenschaften ausgeführt ist, das dichter als das des Körpers ist.
  2. Panzerbrechende Munition nach Anspruch 1, dadurch gekennzeichnet, dass das Verbindungsmittel wenigstens einen Ring (10) umfasst, der die Einsätze (7) umgibt.
  3. Panzerbrechende Munition nach einem der Ansprüche 1 oder 2, dadurch gekennzeichnet, dass sie eine Nase (12) aus dichter Legierung umfasst, die am Ende der axialen Verlängerung (8) des Körpers angeordnet ist und eine hintere Fläche (13) umfasst, die an den Segmenten (7) anliegt.
  4. Panzerbrechende Munition nach Anspruch 1, dadurch gekennzeichnet, dass jeder Einsatz (7) von einem im Wesentlichen zylindrischen Stab gebildet wird, der in einer Bohrung des Eindringkörpers (2) gelagert ist.
  5. Panzerbrechende Munition nach Anspruch 4, dadurch gekennzeichnet, dass sie ebenfalls einen axialen Einsatz (7) umfasst, der eine vordere Spitze (16) umfasst, die den Eindringkörper (2) verlängert.
  6. Panzerbrechende Munition nach Anspruch 5, dadurch gekennzeichnet, dass sie eine Ladung Treibpulver (18) umfasst, die es ermöglicht, den Einsatz (7) aus dem Eindringkörper (2) auszustoßen.
  7. Panzerbrechende Munition (1), die einen Eindringkörper (2) umfasst, der einen durch einen Geschoßboden (4) geschlossenen inneren Hohlraum (3) begrenzt, wobei der Eindringkörper (2) eine vordere Spitze (2a) enthält, die fest mit der Spitze (2a) verbundene Einsätze (7, 7a, 7b, 7c) umfasst, wobei die genannten Einsätze in einer Aufnahme angeordnet sind, die in die Außenseite des Körpers mündet, dadurch gekennzeichnet, dass die Einsätze (7) wenigstens in einem Kranz von gleichmäßig um eine Achse (21) des Eindringkörpers (2) angeordneten Stäben (7a, 7b) gestaltet sind, wobei die genannten Stäbe radial um eine axiale Verlängerung (8) des Körpers (2) herum angeordnet sind, wobei die genannten Stäbe durch ein Verbindungsmittel fest mit dem Körper (2) verbunden sind, wobei der genannte Körper aus einem Material ausgeführt ist, das eine Elastizitätsgrenze von größer oder gleich 1200 Megapascal besitzt und wobei der genannte Einsatz aus einem Material mit hohen mechanischen Eigenschaften ausgeführt ist, das dichter als das des Körpers ist.
  8. Panzerbrechende Munition nach Anspruch 7, dadurch gekennzeichnet, dass sie zwei Kränze von Stäben (7a, 7b) umfasst, die gleichmäßig um eine Achse (21) des Eindringkörpers (2) angeordnet sind.
  9. Panzerbrechende Munition nach einem der Ansprüche 7 oder 8, dadurch gekennzeichnet, dass die Enden der Stäbe (7a, 7b) mit einer äußeren Fläche des Eindringkörpers (2) glatt abschließen.
  10. Panzerbrechende Munition nach einem der Ansprüche 7 oder 8, dadurch gekennzeichnet, dass die Enden der Stäbe (7a, 7b) an der Außenseite des Eindringkörpers (2) vorstehen.
  11. Panzerbrechende Munition nach Anspruch 10, dadurch gekennzeichnet, dass jeder Stab (7a, 7b) eine Achse aufweist, die in Bezug auf die Achse (21) des Eindringkörpers (2) geneigt ist.
  12. Panzerbrechende Munition nach einem der Ansprüche 10 oder 11, dadurch gekennzeichnet, dass die Enden der Stäbe (7a, 7b) eines Kranzes und eines weiteren Kranzes und/oder eines axialen Stabes (7c) im Wesentlichen in einer gleichen Ebene (24) liegen.
  13. Panzerbrechende Munition nach einem der Ansprüche 1 bis 12, dadurch gekennzeichnet, dass der innere Hohlraum (3) wenigstens eine explosive Ladung (5) einschließt.
EP04292218A 2003-10-03 2004-09-16 Panzergeschoss Active EP1521052B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP06076213A EP1701131B1 (de) 2003-10-03 2004-09-16 Panzergeschoss

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0311645A FR2860579B1 (fr) 2003-10-03 2003-10-03 Munition perforante
FR0311645 2003-10-03

Related Child Applications (1)

Application Number Title Priority Date Filing Date
EP06076213A Division EP1701131B1 (de) 2003-10-03 2004-09-16 Panzergeschoss

Publications (2)

Publication Number Publication Date
EP1521052A1 EP1521052A1 (de) 2005-04-06
EP1521052B1 true EP1521052B1 (de) 2007-06-20

Family

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Application Number Title Priority Date Filing Date
EP06076213A Active EP1701131B1 (de) 2003-10-03 2004-09-16 Panzergeschoss
EP04292218A Active EP1521052B1 (de) 2003-10-03 2004-09-16 Panzergeschoss

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP06076213A Active EP1701131B1 (de) 2003-10-03 2004-09-16 Panzergeschoss

Country Status (6)

Country Link
US (1) US7063020B2 (de)
EP (2) EP1701131B1 (de)
AT (1) ATE365307T1 (de)
DE (2) DE602004007080T2 (de)
ES (2) ES2288669T3 (de)
FR (1) FR2860579B1 (de)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7748031B2 (en) * 2005-07-08 2010-06-29 Sandisk Corporation Mass storage device with automated credentials loading
FR2958391B1 (fr) 2010-03-30 2012-07-27 Nexter Munitions Penetrateur a energie cinetique.
US8985026B2 (en) 2011-11-22 2015-03-24 Alliant Techsystems Inc. Penetrator round assembly
FR2987891B1 (fr) * 2012-03-06 2014-09-26 Nexter Munitions Projectile sous calibre a structure de tete amenagee
IL219010A (en) 2012-04-03 2016-11-30 Amon Jacob Warhead
US9212876B1 (en) * 2013-08-30 2015-12-15 The United States Of America As Represented By The Secretary Of The Army Large caliber frangible projectile
US11027859B2 (en) 2017-10-16 2021-06-08 The Boeing Company Variable stiffness flyer plate for penetration device

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB107252A (en) * 1916-06-27 1917-06-27 William Warburton Improvements in the Manufacture of Armour Piercing Bursting Shells or Projectiles.
DE1208656B (de) * 1962-09-18 1966-01-05 Kohlswa Jernverks Ab Geschoss fuer panzerbrechende Waffen und Verfahren zur Herstellung eines solchen Geschosses
DE1428679C1 (de) * 1964-12-29 1977-09-15 Deutsch Franz Forsch Inst Hartkerngeschoss zur Bekaempfung von Panzerzielen
US3464356A (en) * 1967-12-28 1969-09-02 Us Army Self-stabilizing rod penetrators
CH511415A (de) * 1969-08-05 1971-08-15 Oerlikon Buehrle Ag Geschoss, insbesondere Panzersprenggranate
US4597333A (en) * 1983-07-08 1986-07-01 Rheinmetall G.M.B.H. Two-part armor-piercing projectile
GB8417898D0 (en) * 1983-10-27 1998-09-09 Rheinmetall Gmbh 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
WO1987007708A1 (en) 1986-06-09 1987-12-17 Royal Ordnance Pld Armour piercing projectile
DE9018051U1 (de) * 1990-07-24 1994-04-07 Rheinmetall Gmbh, 40882 Ratingen Unterkalibriges Wuchtgeschoß
US5255608A (en) 1992-12-16 1993-10-26 The United States Of America As Represented By The Secretary Of The Air Force Real-time identification of a medium for a high-speed penetrator
US6186072B1 (en) 1999-02-22 2001-02-13 Sandia Corporation Monolithic ballasted penetrator
DE10332257A1 (de) * 2003-07-16 2005-02-03 Rheinmetall W & M Gmbh Gefechtskopf

Also Published As

Publication number Publication date
US20050109233A1 (en) 2005-05-26
DE602004007080D1 (de) 2007-08-02
EP1701131B1 (de) 2010-04-14
DE602004026633D1 (de) 2010-05-27
US7063020B2 (en) 2006-06-20
FR2860579B1 (fr) 2007-10-05
ATE365307T1 (de) 2007-07-15
EP1701131A3 (de) 2006-10-04
FR2860579A1 (fr) 2005-04-08
ES2344597T3 (es) 2010-09-01
DE602004007080T2 (de) 2008-02-21
EP1521052A1 (de) 2005-04-06
EP1701131A2 (de) 2006-09-13
ES2288669T3 (es) 2008-01-16

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