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Computational Modeling of Shock and Impact Response of Alumina

A. M. Rajendran1, D. J. Grove2
ARO, ARL, RTP, NC, USA.
ARL, APG, MD, USA.

Computer Modeling in Engineering & Sciences 2002, 3(3), 367-380. https://doi.org/10.3970/cmes.2002.003.367

Abstract

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.

Keywords

microcracking, ceramic damage model, constitutive equations, shock, impact, alumina.

Cite This Article

Rajendran, A. M., Grove, D. J. (2002). Computational Modeling of Shock and Impact Response of Alumina. CMES-Computer Modeling in Engineering & Sciences, 3(3), 367–380.



This work is licensed under a Creative Commons Attribution 4.0 International License , which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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