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Computational Modeling of Impact Response with the RG Damage Model and the Meshless Local Petrov-Galerkin (MLPG) Approaches

H. T. Liu1, Z. D. Han1, A. M. Rajendran2, S. N. Atluri3

Knowledge Systems Research, LLC, Forsyth, GA 30253
US Army Research Office (ARO), RTP, NC
Center for Aerospace Research & Education, University of Cali-fornia, Irvine

Computers, Materials & Continua 2006, 4(1), 43-54.


The Rajendran-Grove (RG) ceramic damage model is a three-dimensional internal variable based constitutive model for ceramic materials, with the considerations of micro-crack extension and void collapse. In the present paper, the RG ceramic model is implemented into the newly developed computational framework based on the Meshless Local Petrov-Galerkin (MLPG) method, for solving high-speed impact and penetration problems. The ability of the RG model to describe the internal damage evolution and the effective material response is investigated. Several numerical examples are presented, including the rod-on-rod impact, plate-on-plate impact, and ballistic penetration. The computational results are compared with available experiments, as well as those obtained by the popular finite element code (Dyna3D).


Cite This Article

H. T. . Liu, Z. D. . Han, A. M. . Rajendran and S. N. . Atluri, "Computational modeling of impact response with the rg damage model and the meshless local petrov-galerkin (mlpg) approaches," Computers, Materials & Continua, vol. 4, no.1, pp. 43–54, 2006.

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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