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Computational studies on fragmentation of brittle materials

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Ghosh, Arindam
Kumar, V.
Date
2013
Type
Journal Article

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Ghosh, A. and Kumar, V. 2013. Computational studies on fragmentation of brittle materials. Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science. 227: pp. 1650-1664.
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Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science
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Abstract

We study dynamic fragmentation of metallic structures using the cracking particles method with obscuration zone. The cracking particles method is an efficient meshfree method for modeling dynamic fracture. Fracture is modeled by a set of crack segments. The cracking particles method does not require the representation of the crack topology. To avoid numerical fracture observed in discrete approaches, we employ obscuration zones proposed by Mott in his analytical work of fragmentation theory. We also study the influence of initial imperfections with different stochastic input parameters on the results.