Statistics of Fragment Dispersion by Explosion in a Fragment Generator Warhead

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

Abstrakty

EN

Understanding the dispersion characteristics of fragments is essential for precise planning of the end game and the neutralization of targets using directional fragment generator warheads (FGW). The authors have carried out experiments to study the spatial dispersion of the fragments in two configurations of FGWs having a circular shaped fragment generating surface. In this paper, the dispersion of the fragments is quantified using the mean and standard deviation of the projection angle. Using the Shapiro-Wilk test, it is verified that dispersion in the projection angle follows a normal distribution. The dispersion of the peripheral fragments is higher due to edge effects. A steeper variation in projection angles is observed for fragments placed at a radial distance greater than 0.7 times the explosive charge radius. These observations are in agreement with the results of Held (1988) for a square shaped fragment generating surface.

Słowa kluczowe

EN

fragment generator warhead; Taylor angle; fragment spatial dispersion; projection angle scatter; Shapiro-Wilk test

• Czasopismo: Central European Journal of Energetic Materials
• Rocznik: 2016
• Tom: Vol. 13, no. 1
• Strony: 183--197
• Opis fizyczny: Bibliogr. 17 poz., rys., tab.

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] Gurney R.W., The Initial Velocities of Fragments from Bombs, Shells and Grenades, BRL Report No. 405, Aberdeen Proving Ground, Maryland, USA, 1943.
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• [8] Held M., Fragment Generator, Propellants Explos. Pyrotech., 1988, 13, 135-143.
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• [11] Zlatkis A., Korin N., Gofman E., Edge Effects on Fragments Dispersion, Proc. 23rd Int. Symp. on Ballistics, Tarragona, Spain, 2007.
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• [13] AMC Pamphlet. Research and Development of Material: Engineering Design Handbook Warheads-General (U), AMCP 706-290, Headquarters, United States Army Material Command, Washington, D.C., USA, 1964, p. 51.
• [14] 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), 6-8.
• [15] Shapiro S.S., Wilk M.B., An Analysis of Variance Test for Normality, Biometrika, 1965, 52(3/4), 591-611.
• [16] Dhote K.D., Murthy K.P.S., Rajan K.M., Sucheendran M.M., Dynamics of Multi Layered Fragment Separation by Explosion, Int. J. Impact Eng., 2015, 75, 194-202.
• [17] Held M., Corner-turning Distance and Retonation Radius, Propellants Explos. Pyrotech., 1989, 14, 153-161.

Uwagi

Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę.