Progressive failure analysis of composite structure based on micro- and macro-mechanics models
来源期刊：中南大学学报(英文版)2015年第8期
论文作者：SUN Zhi-gang RUAN Shao-ming CHEN Lei SONG Ying-dong
文章页码：2980 - 2988
Key words：composite; progressive analysis; finite-volume direct averaging micromechanics (FVDAM); failure criteria
Abstract: 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.
SUN Zhi-gang(孙志刚), RUAN Shao-ming(阮绍明), CHEN Lei(陈磊), SONG Ying-dong(宋迎东)
(Jiangsu Province Key Laboratory of Aerospace Power System and College of Energy and Power Engineering,
Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China)
Abstract: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.
Key words:composite; progressive analysis; finite-volume direct averaging micromechanics (FVDAM); failure criteria
