| 界面裂纹的路径选择与数值模拟 |
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| 引用本文： | 杨庆生,杨卫.界面裂纹的路径选择与数值模拟[J].力学学报,1997,29(3):355-358. |
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| 作者姓名： | 杨庆生 杨卫 |
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| 作者单位： | 北方交通大学土木工程系 |
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| 摘 要： | 利用界面断裂能和荷载混合度的概念研究界面裂纹的扩展路径，利用有限元数值方法模拟界面裂纹的扩展过程，再现界面断裂的各种几何构型．研究表明，界面的断裂能和混合度完全控制了裂纹在界面附近的扩展过程．数值预测的裂纹路径与理论结果一致
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| 关 键 词： | 裂纹 界面裂纹 扩展 数值模拟 有限元 断裂力学 |
PATH SELECTION AND NUMERICAL SIMULATION OF INTERFACIAL FRACTURE |
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| Yang Qingsheng.PATH SELECTION AND NUMERICAL SIMULATION OF INTERFACIAL FRACTURE[J].chinese journal of theoretical and applied mechanics,1997,29(3):355-358. |
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| Authors: | Yang Qingsheng |
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| Abstract: | The concepts of interfacial fracture energy and mode mixity are used to investigate the growth paths of interfacial cracks. Numerical approach based on the finite element method is applied to calculate the energy release rate and to simulate the growth process of a crack. Various configurations of interfacial fracture of bimaterials can be simulated. It is shown that the process of interfacial fracture is controlled by the interfacial toughness and phase angle of mode mixity. The predicted crack paths agree well with that of the theoretical analysis. |
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| Keywords: | fracture interfaces crack growth numerical simulations finite element method |
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