Finite deformation near a crack tip terminated at an interface between two neo-Hookean sheets.
Finite deformation near a crack tip terminated at an interface between two neo-Hookean sheets.
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裂纹尖端附近的有限变形终止于两个新胡克板之间的界面。
DOI：
10.1016/j.jmps.2021.104653
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发表时间：
2022
影响因子：
5.3
通讯作者：
Bassani,JohnL
中科院分区：
文献类型：
--
作者：
Mo,Chengyang;Raney,JordanR;Bassani,JohnL
使用有限变形理论在平面应力条件下研究了以任意角度终止于两个新胡克板之间界面的裂纹。渐近裂纹尖端变形和应力场被分析为模量比和裂纹相对于界面的角度的函数。全场数值计算和实验研究验证了分析结果。使用裂纹尖端场解决方案开发了基于拉伸的裂纹扩展准则。该准则可以预测实验中观察到的双材料界面裂纹扩展的延迟，并且可以扩展到任何异质性和材料。
A crack terminating at an arbitrary angle to the interface between two neo-Hookean sheets is investigated under plane stress conditions using finite deformation theory. The asymptotic crack-tip deformation and stress fields are analyzed as a function of the ratio of the moduli and the angle of the crack relative to the interface. Full-field numerical calculations and experimental studies validate the analytical results. A stretch-based crack growth criterion is developed using crack-tip field solutions. Such criterion can predict the delay of crack growth through the bi-material interface observed in experiments and can be extended to any heterogeneity and material.