IMPACT FRAGMENTATION AND BALLISTICS OF PRESSED ALUMINUM POWDER PROJECTILES.

Authors :: Thuot, S. C.
Wilkinson, J.
Lee, R. J.
Carney, J. R.
Hooper, J.
Lightstone, J. M.
Jouet, J. R.
Rogerson, J. G.
Source :: AIP Conference Proceedings; 12/28/2009, Vol. 1195 Issue 1, p1011-1014, 4p
Publication Year :: 2009
Abstract: The penetration and fragmentation characteristics of spheres made of pressed aluminum powder are studied via normal impact on thin steel plates at 0.6 to 1.8 km/s. Ultra-high speed photography and flash x-rays are used to monitor the formation and evolution of the debris cloud formed by impact. The mass distribution of debris fragments is measured directly via a soft-catch experiment. Experimental results are compared to simple analytic theories of brittle fragmentation and spall. This data aids in understanding the mechanical properties and potential energy release of porous reactive materials. [ABSTRACT FROM AUTHOR]