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Durability analysis of composite materials by strong discontinuity embedded multifield framework

Durability analysis of composite materials by strong discontinuity embedded multifield framework

Leitung:  X. Zhuang
Team:  Yiming Zhang
Jahr:  2016

Composite materials experience energy mass transport, potential phase change, chemical degradation and mechanical deformation when subjected to high temperature loading or long term chemical interaction with the surrounding environments, with is a coupled multi-physical-chemical process.  Moreover, the evolving micro/macro cracks in the materials will cause extra mass transport and accelerate the degradation of materials, jeopardizing the durability of the structure.

This work focuses on developing a strong discontinuity embedded multifield framework for predicting and analyzing the durability of composite materials, regarding different short/long term chemical reaction and high temperature impacts.  The cracking behavior is simulated by a Strong Discontinuity embedded Approach (SDA) based on Statically Optimum Symmetric (SOS) formulation, taking into account the interaction between cracking and the multifield process.