TY - EJOU AU - Rajendran, A. M. AU - Grove, D. J. TI - Computational Modeling of Shock and Impact Response of Alumina T2 - Computer Modeling in Engineering \& Sciences PY - 2002 VL - 3 IS - 3 SN - 1526-1506 AB - This paper presents detailed computational analyses investigating the ability of constitutive relationships to describe the response of a 99.5% pure alumina (AD995) subjected to a wide range of stress/strain loading states. Using a shock-wave-propagation-based finite element code, one and two-dimensional simulations were performed for the following shock and impact configurations: plate-on-plate impact; rod-on-rod impact; single-density plate-on-rod impact; graded-density plate-on-rod impact; and rod penetration into a thick plate. The detailed analyses presented in this paper include a model constant sensitivity study through comparisons of computed wave profiles with experimental measurements. KW - microcracking KW - ceramic damage model KW - constitutive equations KW - shock KW - impact KW - alumina DO - 10.3970/cmes.2002.003.367