期刊
COMPUTERS & STRUCTURES
卷 81, 期 13, 页码 1405-1414出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/S0045-7949(03)00019-1
关键词
viscoplastic; Bodner-Partom; implicit; integration; algorithmic tangential stiffness
The framework for an implicit implementation of the Bodner-Partom material model is presented. All equations needed for using a Newton-Raphson algorithm to solve the stress and hardening equations at the integration points are derived. In addition, the algorithmic tangential stiffness tensor, ensuring quadratic convergence in the global loop is presented. (C) 2003 Elsevier Science Ltd. All rights reserved.
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