Description of the M-integral in an elastic plastic material

Huiyu Tao; Cheng Gao; Jinyong Xu; Yan Tang; Dayong Cai; Ranran Huang

doi:10.1117/12.2265224

23 January 2017 Description of the M-integral in an elastic plastic material

Huiyu Tao, Cheng Gao, Jinyong Xu, Yan Tang, Dayong Cai, Ranran Huang

Proceedings Volume 10322, Seventh International Conference on Electronics and Information Engineering; 103223Z (2017) https://doi.org/10.1117/12.2265224
Event: Seventh International Conference on Electronics and Information Engineering, 2016, Nanjing, China

Abstract

By use of finite element analysis method of elastic-plasticity, a calculation of M-integral for 7075 aluminum alloy plate containing different configuration defects was conducted. The effect of plastic energy on path independence of the M-integral is discussed, The variation of M-integral of the holes before and after coalescence under tension loading is studied. Analysis result indicates that M-integral will be path dependent when the plastic zone is passed through by the selected integration contours. There is a jump of the M-integral when coalescence of the holes in a plate occurs. The value of the M-integral is always configuration dependent.

Citation Download Citation

Huiyu Tao, Cheng Gao, Jinyong Xu, Yan Tang, Dayong Cai, and Ranran Huang "Description of the M-integral in an elastic plastic material", Proc. SPIE 10322, Seventh International Conference on Electronics and Information Engineering, 103223Z (23 January 2017); https://doi.org/10.1117/12.2265224

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