Evaluation of Ductile Damage Parameters under High Stress Triaxiality
作者： L. Huang , J. Zhong , T. Xu , K. Guan
DOI: 10.1007/S11340-016-0224-4
关键词:
摘要: The GTN model proposed by Gurson, Tvergaard and Needleman has been widely applied to predict ductile fracture. However, the evaluation of under high stress triaxiality only reported in a few studies. In this paper, series tensile tests on round notched specimens were performed evaluate applicability parameters triaxiality. was carried out comparing predicted load-displacement curves with experimental results. It observed depend material except critical void volume fraction. influence fraction discussed. A further discussion about construction new coalescence criterion for also presented paper.
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