Directional Warhead Design Methodology for a Tailored Fragment Beam

• Autorzy: Dhote K. D. , Murthy K. P. S. , Rajan K. M. , Sucheendran M. M.
• Języki publikacji: EN

Abstrakty

EN

In this article, the authors present a design methodology for generating a spatially tailored fragment beam with specified velocity and projection angles. The modified Gurney equation was used to estimate the length and diameter of the cylindrical charge to achieve the desired velocity; and the modified Taylor equation was used to arrive at the radius of curvature of the fragmenting disc. The methodology is further explained for generating a rectangular beam of fragments having a velocity of 1500 m/s with a tailored fragment beam of 32° in the azimuth and 20° in the elevation. The warhead had preformed steel fragments of 4 mm diameter arranged in a double layer. The design was validated using the fragment distribution measured experimentally.

Słowa kluczowe

EN

Gurney equation; Taylor equation; coherent fragment distribution; high explosive; arena test setup

• Czasopismo: Central European Journal of Energetic Materials
• Rocznik: 2015
• Tom: Vol. 12, no. 4
• Strony: 637--649
• Opis fizyczny: Bibliogr. 11 poz., rys.

Twórcy

autor

Dhote K. D.

• Armament Research & Development Establishment, Armament Post, Dr. Homi Bhabha Road, Pashan, Pune – 411021, India

autor

Murthy K. P. S.

• Armament Research & Development Establishment, Armament Post, Dr. Homi Bhabha Road, Pashan, Pune – 411021, India

autor

Rajan K. M.

• Armament Research & Development Establishment, Armament Post, Dr. Homi Bhabha Road, Pashan, Pune – 411021, India

autor

Sucheendran M. M.

• Defence Institute of Advanced Technology, Girinagar, Pune – 411025, India

Bibliografia

• [1] Lloyd R.M., Physics of Direct Hit and Near Miss Warhead Technologies, in: Progress in Astronautics & Aeronautics, Vol. 194, (Zarchan P., Ed.), American Institute of Aeronautics and Astronautics, USA, 2001, p. 6; ISBN 1-56347-473-5.
• [2] Dhote K.D., Murthy K.P.S., Rajan K.M., Sucheendran M.M., Quantification of Projection Angle in Fragment Generator Warhead, Defence Technology, 2014, 10, 177-183.
• [3] Qian L., Qu M., Wen Yu, Zhu Y., Jiang D., Dense Fragment Generator, Propellants Explos. Pyrotech., 2002, 27, 267-278.
• [4] Gurney R.W., The Initial Velocities of Fragments from Bombs, Shells and Grenades, BRL Report No. 405, Aberdeen Proving Ground, Maryland, USA, 1943.
• [5] Taylor G.I., Analysis of the Explosion of Long Cylindrical Bomb Detonated at One End, in: The Scientific Papers of G. I. Taylor, Vol. III (Batchelor G.K., Ed.), Cambridge at the University Press, UK, 1963, pp. 277-286.
• [6] Zlatkis A., Korin N., Gofman E., Edge Effects on Fragments Dispersion, 23rdInt. Symposium on Ballistics, Tarragona, Spain, April 16-20, 2007.
• [7] Lloyd R.M., Physics of Direct Hit and Near Miss Warhead Technologies, in: Progress in Astronautics & Aeronautics, Vol. 194, (Zarchan P., Ed.), American Institute of Aeronautics and Astronautics, USA, 2001, p. 250; ISBN 1-56347-473-5.
• [8] Lloyd R.M., Conventional Warhead Physics, in: Progress in Astronautics and Aeronautics, Vol. 179, (Zarchan P., Ed.), American Institute of Aeronautics and Astronautics, USA, 1998, p. 374; ISBN 1-56347-255-4.
• [9] Held M., Fragment Generator, Propellants Explos. Pyrotech., 1988, 13, 135-143.
• [10] Cooper P.W., Explosive Engineering, Wiley-VCH, New York, USA,1996, pp. 371-382; ISBN 0-471-18636-8.
• [11] Dhote K.D., Verma P.N., Murthy K.P.S., Mitigation of Fragment Spall Induced by Explosive Loading in High Performance Fragment Generators, Journal of Battlefield Technology, 2014, 17(1).