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Finite Element Study of Brittle Fracture by Mohr-Coulomb Failure Criterion

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NET2D is a Lagrangian explicit time-integration finite element code for analyzing dynamic impact phenomena. It uses a four-node quadrilateral element for a two-dimensional (2-D) problem. For a more accurate and robust contact force computation, the defense node algorithm was adopted. In this work, the Mohr-Coulomb failure condition was implemented for NET2D. If the failure condition is satisfied along any finite element interface, the nodes on the interface will be debonded and the contiguous two elements will be separated. The failure load and mode were examined for the cleavage fracture of brittle material. The numerical results were compared with the theoretical predictions by Mohr-Coulomb and Griffith criteria.
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Document Type: Research Article

Publication date: September 1, 2018

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  • Science of Advanced Materials (SAM) is an interdisciplinary peer-reviewed journal consolidating research activities in all aspects of advanced materials in the fields of science, engineering and medicine into a single and unique reference source. SAM provides the means for materials scientists, chemists, physicists, biologists, engineers, ceramicists, metallurgists, theoreticians and technocrats to publish original research articles as reviews with author's photo and short biography, full research articles and communications of important new scientific and technological findings, encompassing the fundamental and applied research in all latest aspects of advanced materials.
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