Progressive failure analysis of composite structure based on micro- and macro-mechanics models

摘要

Based on parameter design language, a program of progressive failure analysis in composite structures is proposed. In this program, the relationship between macro- and micro-mechanics is established and the macro stress distribution of the composite structure is calculated by commercial finite element software. According to the macro-stress, the damaged point is found and the micro-stress distribution of representative volume element is calculated by finite-volume direct averaging micromechanics（FVDAM）. Compared with the results calculated by failure criterion based on macro-stress field（the maximum stress criteria and Hashin criteria） and micro-stress field（Huang model）, it is proven that the failure analysis based on macro- and micro-mechanics model is feasible and efficient.