Dynamic crack propagation under mixed-mode loading -: Comparison between experiments and X-FEM simulations

INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES

卷:44

Article

Gregoire, D. ; Maigre, H. ; Rethore, J. ; Combescure, A.

关键词: dynamic crack propagation;    elastic;    X-FEM;    experiments;    Split Hopkinson Pressure Bar;    PMMA;    mixed-mode loading;   

DOI  :  10.1016/j.ijsolstr.2007.02.044

来源: Elsevier

【 摘 要 】

The objective of this paper is to describe a simple dynamic crack propagation experiment which reproduces two phenomena: mixed-mode propagation and crack stop and restart. This experiment is explained and interpreted using X-FEM simulations. We show that a simple fracture theory which consists in using a dynamic crack initiation toughness, a crack orientation along the maximum principal stress and a simple equation for the calculation of the crack speed is sufficient to explain what is observed experimentally. (C) 2007 Elsevier Ltd. All rights reserved.

【 授权许可】

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