Research on failure criterion of composite based on unified macro-and micro-mechanical model

摘要：

a new unified macro-and micro-mechanics failure analysis method for composite structures was developed in order to consider effect of composite micro structure. In this method, the macro stress distribution of composite structure was calculated by commercial finite element analysis software. According to the macro stress distribution, the damage point was searched and the micro-stress distribution was calculated by High-Fidelity Generalized Method of Cells (HFGMC) which was a multi-scale finite element method for composite. The micro structure failure modes were estimated with the failure strength of constituents. A unidirectional composite board with a circular hole in the center under two kinds of loads was analyzed with the traditional macro-mechanical failure analysis method and the unified macro-and micro-mechanics failure analysis method. The results which were obtained by two methods were consistent and it showed this new methods accuracy and efficiency.

关键词： multi-scale finite element high-fidelity generalized method of cells mechanics failure model unified macro and micro

作者: ZHAO Long SUN Zhigang Chen Lei SONG Yingdong

作者单位: College of Energy and Power Engineering Nanjing University of Aeronautics and Astronautics Nanjing, China

会议类型: 国际会议

会议名称: The 3rd International Symposium on Jet Propulsion and Power Engineering(第三届喷气推进与动力工程国际会议 ISJPPE)

会议地点: 南京

会议语种:英文

页码: 467-472

在线出版日期: 2010-09-13（万方平台首次上网日期，不代表论文的发表时间）