Liner Material's Output Characteristics of Explosively Formed Projectiles (EFPs)

Article Preview

Abstract:

The output considerations: velocity, pressure, density, internal energy, temperature and L/D ratio of explosively formed projectiles (EFPs) were investigated. The internal energy of the EFPs was inversely proportional to the density of the liner material. The shock pressure generated and its fluctuations were highest for Fe and Ta liner materials respectively. The least pressure variations were observed for Cu along its axial direction with highest length to diameter (L/D) ratio to supports deeper penetration. The maximum difference between numerical simulation and experiment was 9.7 % for Cu EFP.

You might also be interested in these eBooks

Info:

Periodical:

Key Engineering Materials (Volumes 510-511)

Pages:

148-155

Citation:

Online since:

May 2012

Export:

Price:

Permissions CCC:

Permissions PLS:

Сopyright:

© 2012 Trans Tech Publications Ltd. All Rights Reserved

Share:

Citation:

[1] G. Hussain, K. Sanaullah, Comparative parametric numerical simulations of materials used as liners in the explosively formed projectiles (EFPs). 1st International Conference on Advancements in Process Engineering (ICAPE-2008), Islamabad, Pakistan. (2008).

Google Scholar

[2] K. Weimann, A. Blache, Explosively formed projectile with tantalum penetrator and armco iron stabilization base, 18th international symposium on ballistics, 15-19 November, San Antonio, 1999, p-603.

Google Scholar

[3] K. Weimann, Producing Explosively Formed Projectiles, US Patent 535, 1987, p-949.

Google Scholar

[4] V. Sharma, P. Kishore, S. Singh, An analytical approach for modeling EFP formation and estimation of confident effect on velocity, 16th international symposium on ballistics, 23-28 Sep. , San Francisco, CA, 1996. p- 585.

Google Scholar

[5] W. Lanz, W. Odermatt, Penetration limits of conventional large caliber anti tank guns/ kinetic energy projectiles, 13th international symposium on ballistics, 1-3 June, Stockholm, 1992, p-225.

Google Scholar

[6] T.W. Bjerke, G.F. Silsly, D.R. Scheffler, Yawed long rod armour penetration, int. journal of impact engineering, vol. 12, 1992, p- 281.

DOI: 10.1016/0734-743x(92)90473-7

Google Scholar

[7] K. Weimann, Performance of Ta, Cu and Fe EFPs against steel targets, 15th international symposium on ballistics, v 2, 1995. P-399.

Google Scholar

[8] F. Rondot, Performance of Ta EFP simulants, 17th international symposium on ballistics, v. 3, 1998. P-81.

Google Scholar

[9] F. Rondot, Terminal ballistics of the EFPs-A numerical comparative study between hollow and solid simulants, 19th international symposium on ballistics, 7-11 May, Interlaken, 2001, p-455.

Google Scholar

[10] Bo. Janzon, N. Burman, J. Forss, S. Karlsson, E. Liden, EFP modeling by numerical continuum dymanics on personal computers- A comparison between PC-Dyna2D, ZEUS and Autodyn-2D, 13th international symposium on ballistics, 1-3 June, Stockholm, 1992, p-457.

Google Scholar

[11] F., Rondot, C. Berner, Performance of aerodynamically optimized EFP stimulants, 17th international symposium on ballistics, Midrand, South Africa, 1998, Vol. 3, p-225.

Google Scholar

[12] S. Pappu, L.E. Murr, Hydrocode and micro-structural analysis of explosively formed penetrators, journal of material science, 37(2):, 2002, p-233.

Google Scholar