A general methodology for estimating the requirements for defeating an explosive-containing mortar threat by an intercepting array of explosively generated natural and controlled fragments is discussed along with the experimental data supporting quantitative interpretation. The target response of covered TNT impacted by single fragments is predicted through numerically determined shock-to-detonation thresholds as well as empirical penetration equations. Included in the methodology is a comprehensive, deterministic endgame model that consists of an intercept model, a static and dynamic fragment model, and a hit model generating the number of effective hits for arbitrary intercept situations. Experimental data supporting the assumptions of the models are reported. The model is also useful in establishing interceptor requirements.
Vulnerability of Mortar Projectiles by Intercepting Fragmentation Warheads
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Graswald, M., Brown, R. E., Sinibaldi, J. O., Nolte, T., and Rothe, H. (June 30, 2010). "Vulnerability of Mortar Projectiles by Intercepting Fragmentation Warheads." ASME. J. Appl. Mech. September 2010; 77(5): 051804. https://doi.org/10.1115/1.4001713
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