A Calibration of the Wierzbicki-Xue Damage Model Using Charpy Test Results
1 Department of Mechanical and Automotive Engineering, Seoul National University of Science and Technology, 232 Gongneung-ro, Nowon-gu, Seoul, Republic of Korea
2 Department of Advanced Ceramic Materials Engineering, Gangneung-Wonju National University, 7 Jugheon-gil, Gangneung, Gangwon-do 210-702, Republic of Korea
3 Agency for Defense Development, Daejeon, 305-600, Republic of Korea
Damage models are frequently used to predict fractures in large deformation problems such as penetration of a projectile into a target. Though many damage models have been proposed so far, coefficients of each model have been provided for only a few materials. In this study, the coefficients of the Wierzbicki-Xue (2005) damage model for tungsten heavy alloy (DX2HCMF) are determined using the Charpy impact test. The Wierzbicki-Xue fracture criterion is implemented into NET3D code in which a node-split algorithm is built in. By comparing the energy absorbed in the Charpy test with the results of finite element analysis, the fracture model coefficients are determined.
© Owned by the authors, published by EDP Sciences, 2015
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