EP0467774A1 - Beim Aufschlag explodierendes Geschoss mit zerstörender Wirkung - Google Patents

Beim Aufschlag explodierendes Geschoss mit zerstörender Wirkung Download PDF

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Publication number
EP0467774A1
EP0467774A1 EP19910401984 EP91401984A EP0467774A1 EP 0467774 A1 EP0467774 A1 EP 0467774A1 EP 19910401984 EP19910401984 EP 19910401984 EP 91401984 A EP91401984 A EP 91401984A EP 0467774 A1 EP0467774 A1 EP 0467774A1
Authority
EP
European Patent Office
Prior art keywords
projectile according
projectile
ballistic
cap
ballistic cap
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
EP19910401984
Other languages
English (en)
French (fr)
Other versions
EP0467774B1 (de
Inventor
Jacques Nicolas
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.)
Manurhin Defense SA
Original Assignee
Manurhin Defense 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 Manurhin Defense SA filed Critical Manurhin Defense SA
Priority to AT91401984T priority Critical patent/ATE99045T1/de
Publication of EP0467774A1 publication Critical patent/EP0467774A1/de
Application granted granted Critical
Publication of EP0467774B1 publication Critical patent/EP0467774B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • 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
    • F42B12/36—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
    • F42B12/44—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 of incendiary type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42C—AMMUNITION FUZES; ARMING OR SAFETY MEANS THEREFOR
    • F42C1/00—Impact fuzes, i.e. fuzes actuated only by ammunition impact
    • F42C1/10—Impact fuzes, i.e. fuzes actuated only by ammunition impact without firing-pin
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S102/00—Ammunition and explosives
    • Y10S102/702—Compression ignition

Definitions

  • a projectile with a destructive effect exploding by impact comprising a shell body in which an explosive charge is disposed, as well as a ballistic cap extending said shell body and in which a system is disposed initiation, characterized in that the ballistic cap is organized in two separate parts coaxially connected to each other, one of which is essentially a lower part rigid and cylindrical cup-shaped, and an upper part which is essentially deformable on impact on target and in the form of a ballistic point extending the shell body, each of said parts being charged with an incendiary composition compressed with the provision of a recess respective blind axial, so that said blind recesses define a closed functional cavity whose geometry is maintained during the firing and on the trajectory of the projectile, and the lower part also receiving a layer of pyrophoric material with mechanical strength which is disposed between the perforated bottom of the bucket and the associated incendiary composition, said pyrophoric material being initiated on impact by the entire loading of the ballistic cap as a result
  • a spangle is interposed between the adjacent faces of the two compressed incendiary compositions forming the charge of the ballistic cap.
  • the thickness and the material constituting the upper part of the ballistic cap are chosen so that said upper part has a deformation on impact simultaneously satisfying the required safety and sensitivity requirements; in particular, the upper part of the ballistic cap is made of metal, a metal alloy, or a plastic material such as a polyamide.
  • the thickness and the material constituting the lower part of the ballistic cap are chosen so that said lower part has sufficient rigidity to preserve the setting-in sequence during impact; in particular, the lower part of the ballistic cap is made of metal or a metal alloy.
  • the pyrophoric material with mechanical strength is based on sponges, and preferably zirconium sponges; it may be advantageous to provide that the sponge-based material is also infiltrated with metallic particles, for example magnesium.
  • the pyrophoric material with mechanical strength is based on crystals, and preferably based on granular zirconium.
  • the layer of pyrophoric material with mechanical strength is advantageous for the layer of pyrophoric material with mechanical strength to be in the form of a cylindrical pellet, the height of which is preferably chosen close to the diameter.
  • the single figure is an axial section of a projectile with a destructive effect exploding on impact, according to the invention, it being understood that other variants can naturally be envisaged without departing from the scope of the invention, as will be explained below.
  • the single figure illustrates a projectile 100 with a destructive effect exploding by impact, comprising a shell body 101 in which is disposed an explosive charge 102 and having an outer guide belt 105 below, as well as a ballistic cap 104 extending said body d shell and in which is disposed a priming system.
  • the ballistic cap 104 is organized in two separate parts 106, 107 connected coaxially with each other, including a lower part 106 which is essentially rigid and in the form of a cylindrical cup, and an upper part 107 which is essentially deformable to the impact on target and in the form of a ballistic point extending the shell body 101.
  • Each of the parts 106, 107 is charged with a compressed incendiary composition 108, 109 with the provision of a respective blind axial recess 114, 115, of such that these blind recesses define a closed functional cavity 116 whose geometry is maintained during the firing and on the trajectory of the projectile.
  • the lower part 106 also receives a layer of pyrophoric material with mechanical strength 120 which is disposed between the perforated bottom of the bucket 106 and the associated incendiary composition 108, this pyrophoric material being initiated on impact by the entire load 108, 109 of the ballistic cap 104 as a result of the sudden local overpressure of the air contained in the closed functional cavity 116, and then propelling at high speed a high number of incandescent particles on the adjacent face 123 of the explosive charge 102.
  • the organization of the ballistic cap 104 in two parts thus makes it possible to define a closed functional cavity 116, coaxial with the axis 200 of the projectile, this cavity playing an essential role in the functioning of said projectile.
  • the upper part 107 of the ballistic cap 104 is suddenly deformed; the composition 109 which it contains then abruptly compresses the air contained in the closed functional cavity 116, and the local overpressure thus created causes the incandescent composition 108 contained in the lower cup-shaped portion 106 to ignite.
  • the sudden increase in air pressure has the effect of effect of promoting mutual friction of the grains of the incandescent composition 108 and 109, in the manner of a lighter effect. It is then that the entire load of the ballistic cap 104 initiates the pyrophoric material with mechanical strength 120, and that a large number of incandescent particles are propelled at high speed on the adjacent face of the explosive load 102.
  • the closed functional cavity 116 of the ballistic cap whose function is to initiate on impact the incendiary composition defining it by a lighter effect, which composition then initiates the pyrophoric material, has nothing to do with the hole or holes provided in an incendiary charge placed in the shell body (as for example described in the document FR-A-2 229 946), and the sole function of which is to vary the intensity of the combustion of this incendiary charge.
  • each of the constituent parts of the ballistic cap 104 can thus be produced separately, so that it is easy to choose the suitable compression of the composition placed in each of these parts, this compression having to be chosen such that the geometry of its blind recess is maintained during the firing and on the trajectory of the projectile, so that the side walls of each blind recess 114, 115 defining the closed functional cavity 116 must be able to resist the forces and the stresses applied during the firing of the projectile in the barrel , and on the ballistic trajectory of said projectile.
  • a cylindrical cup is put in place, having a shoulder 119 below defining a coaxial hole 122, then there is a combustible closing flap 121, on which the desired quantity of pyrophoric pad is placed.
  • mechanical resistance by exerting a high compression on this pyrophoric material, for example a compression of the order of two tonnes, a layer 120 is produced, this layer having the form of a cylindrical pellet, the height of which is preferably chosen close to its diameter.
  • a cylindrical punch (not shown here) is placed along the axis of the bucket 106, so that the end of said punch is close to the layer 120 of pyrophoric material, and the incendiary composition 108 is put in place, which can then be subjected to the desired compression, which is for example of the order of a ton.
  • the cylindrical punch which has served as the central core is removed, which defines the associated blind axial recess 114. It is then possible to add a straw 117 on the upper edge of the bucket 106, in order to facilitate the subsequent manipulations of the lower part thus produced.
  • the volume of the blind axial recess 114 is of the order of a quarter of the interior volume of the bucket 106.
  • the bucket 106 also has externally a lower thread 111 allowing a connection by screwing with the neck 103 of the shell body 101, as well as a second upper thread 110 allowing a connection by threading with the upper part 107 of the ballistic cap 104
  • the connection between the shell body 101 and the lower part 106 of the ballistic cap 104 on the one hand, and the connection between the lower 106 and upper 107 parts of said cap on the other hand may be made by any other means, such as crimping or bonding.
  • the ballistic cap 104 it is finally easy to produce the ballistic cap 104, by joining the lower part 106 provided with its layer of pyrophoric material 120 and its composition 108, and the upper part 107 provided with its composition 109, the ballistic cap thus assembled then presenting the closed functional cavity 116 trapping a certain volume of air, which volume of air will subsequently be subjected to sudden compression upon impact on the target due to the deformation of the upper part 107 of the ballistic cap 104.
  • the lower part 106 of the ballistic cap 104 thus partially fits into the upper part 107 of said cap, the remainder of said lower part penetrating into the neck 103 of the shell body 101 to ensure the connection between said shell body and said cap.
  • the upper part 107 of the ballistic cap 104 then contacts by its lower edge 113 the upper edge 112 of the neck 103 of the shell body 101: preferably, provision will be made for the respective contact crowns to be arranged conically, as illustrated in FIG. figure, in order to improve the behavior of the projectile in external ballistics.
  • each blind recess 114, 115 defining the closed functional cavity 116 is coated, at least partially, with a thin envelope 125, 124: such an envelope then has a double advantage, insofar as it promotes both the mechanical strength of the adjacent compressed composition 108 or 109, as well as the speed of ignition of the entire load of the ballistic cap 104.
  • a thin envelope will be used made of a highly combustible material, such as a propellant with structural consistency.
  • Each of the envelopes 124 and 125 is then shaped separately like a thermowell, and then put in place after the conformation of the associated blind axial recess constituting the removal of the cylindrical punch used.
  • the incendiary composition 108 or 109 will be of conventional type, with chlorates, barium nitrates, aluminum and magnesium alloys, and phlegmatizers. The same goes for the explosive charge 102 of the shell body, which can be made tolite, octonal, octogenous, hexogenic, or hexal (aluminum / hexogen mixture), etc.
  • the projectile according to the invention is thus particularly sensitive on a thin target, and it has a very high shock wave transmission speed regime.
  • the projectile thus produces an effect significant destructive effect, which results from an incendiary effect reinforced by a high penetrating power of the fragments generated by the operation of the projectile at impact.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
  • Medicines Containing Antibodies Or Antigens For Use As Internal Diagnostic Agents (AREA)
  • Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
  • Drilling And Exploitation, And Mining Machines And Methods (AREA)
EP91401984A 1990-07-17 1991-07-16 Beim Aufschlag explodierendes Geschoss mit zerstörender Wirkung Expired - Lifetime EP0467774B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT91401984T ATE99045T1 (de) 1990-07-17 1991-07-16 Beim aufschlag explodierendes geschoss mit zerstoerender wirkung.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9009111 1990-07-17
FR9009111A FR2664970B1 (fr) 1990-07-17 1990-07-17 Projectile a effet destructif explosant par impact.

Publications (2)

Publication Number Publication Date
EP0467774A1 true EP0467774A1 (de) 1992-01-22
EP0467774B1 EP0467774B1 (de) 1993-12-22

Family

ID=9398817

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91401984A Expired - Lifetime EP0467774B1 (de) 1990-07-17 1991-07-16 Beim Aufschlag explodierendes Geschoss mit zerstörender Wirkung

Country Status (6)

Country Link
US (1) US5121691A (de)
EP (1) EP0467774B1 (de)
AT (1) ATE99045T1 (de)
DE (1) DE69100830T2 (de)
ES (1) ES2048572T3 (de)
FR (1) FR2664970B1 (de)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NO172867C (no) * 1991-08-01 1993-09-15 Raufoss As Granat med brannelement
FR2718842B1 (fr) * 1994-04-15 1996-06-28 Luchaire Defense Sa Projectile destiné à agresser des cibles dures.
FR2722876B1 (fr) * 1994-07-22 1996-09-13 Manurhin Defense Projectile explosif
DE19651170A1 (de) * 1996-12-10 1998-06-18 Diehl Gmbh & Co Zünderloses, ballistisches Sprenggeschoß
US8122833B2 (en) 2005-10-04 2012-02-28 Alliant Techsystems Inc. Reactive material enhanced projectiles and related methods
USRE45899E1 (en) 2000-02-23 2016-02-23 Orbital Atk, Inc. Low temperature, extrudable, high density reactive materials
DE10057673A1 (de) * 2000-11-21 2002-05-23 Rheinmetall W & M Gmbh Gefechtskopf
EP1293750A1 (de) * 2001-09-12 2003-03-19 Diehl Munitionssysteme GmbH & Co. KG Pyrotechnischer Aufschlagzünder
FR2867555A1 (fr) * 2004-03-15 2005-09-16 Alliant Techsystems Inc Projectiles a matiere reactive renforces, et procedes relatifs a ces projectiles
IL189612A (en) * 2008-02-19 2012-10-31 Rafael Advanced Defense Sys Flammable arrowhead
EP2616757B1 (de) 2010-09-17 2018-08-22 Amtec Corporation Pyrophor-projektil
US9377278B2 (en) * 2012-05-02 2016-06-28 Darren Rubin Biological active bullets, systems, and methods
DE102016008391B4 (de) 2016-07-09 2018-05-24 Diehl Defence Gmbh & Co. Kg Geschoss
US10557696B2 (en) 2016-12-01 2020-02-11 Battelle Memorial Institute Self-glowing materials and tracer ammunition
US10422613B2 (en) 2016-12-01 2019-09-24 Battelle Memorial Institute Illuminants and illumination devices
US10502537B1 (en) * 2017-10-20 2019-12-10 The United States Of America As Represented By The Secretary Of The Army Enhanced terminal performance medium caliber multipurpose traced self-destruct projectile
CN113091534B (zh) * 2021-04-09 2022-06-28 南京理工大学 一种高灵敏度碰击触发的超音速弹头引信
WO2023027817A2 (en) * 2021-07-09 2023-03-02 Cheytac Usa Inc. Advanced projectile with removable tips

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2323303A (en) * 1941-06-27 1943-07-06 William R Biuchdorn Incendiary bullet
AU503566A (en) * 1966-03-18 1967-11-09 G. & J. Weir Limited Apparatus for expressing liquids from materials
FR2067440A5 (de) * 1969-10-13 1971-08-20 Raufoss Ammunisjonsfabrikker
US4480551A (en) * 1983-06-08 1984-11-06 Whittaker Corporation Point-detonating variable time-delayed fuze

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NO135294C (de) * 1973-05-18 1977-03-16 Raufoss Ammunisjonsfabrikker
NO134882C (de) * 1973-05-18 1976-12-29 Raufoss Ammunisjonsfabrikker
NO137297C (no) * 1976-07-01 1978-02-01 Raufoss Ammunisjonsfabrikker Prosjektil.
NO138610C (no) * 1976-08-24 1978-10-04 Raufoss Ammunisjonsfabrikker Prosjektil for spredning av nyttelast og fremgangsmaate ved fremstilling av prosjektilet
US4444112A (en) * 1981-03-27 1984-04-24 A/S Raufoss Ammunisjonsfabrikker Multi-capability projectile and method of making same
CH654406A5 (en) * 1981-08-26 1986-02-14 Oerlikon Buehrle Ag Projectile having a burning compound
NO158898C (no) * 1986-05-29 1988-11-09 Raufoss Ammunisjonsfabrikker Prosjektil.

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2323303A (en) * 1941-06-27 1943-07-06 William R Biuchdorn Incendiary bullet
AU503566A (en) * 1966-03-18 1967-11-09 G. & J. Weir Limited Apparatus for expressing liquids from materials
FR2067440A5 (de) * 1969-10-13 1971-08-20 Raufoss Ammunisjonsfabrikker
US4480551A (en) * 1983-06-08 1984-11-06 Whittaker Corporation Point-detonating variable time-delayed fuze

Also Published As

Publication number Publication date
ES2048572T3 (es) 1994-03-16
EP0467774B1 (de) 1993-12-22
FR2664970A1 (fr) 1992-01-24
US5121691A (en) 1992-06-16
FR2664970B1 (fr) 1992-09-25
DE69100830T2 (de) 1994-05-05
DE69100830D1 (de) 1994-02-03
ATE99045T1 (de) 1994-01-15

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