| 延性材料动态断裂的实验研究和数值分析 |
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| 引用本文： | 郑坚,王泽平.延性材料动态断裂的实验研究和数值分析[J].固体力学学报,1994,15(4):345-350. |
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| 作者姓名： | 郑坚 王泽平 |
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| 作者单位： | 中国科学院力学研究所非线性连续介质力学开放研究实验室 |
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| 摘 要： | 本文对延性材料纯铜和ＬＹ１２铝合金进行了层裂实验，对软回收试件进行了仔细的定量和显微金相观测，观察到了两种材料中不同微损伤的形核、增长和聚合机制，为理论分析提供了真实的实验结果。将文〔４〕提出的延性动态损伤模型编入了一维Ｌａｇｒａｎｇｅ有限差分动力学程序，对两组层裂实验进行了数值模拟，计算结果与实验吻合较好。
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| 关 键 词： | 金相分析 断裂试验 延性材料 |
EXPERIMENTAL STUDY AND NUMERICAL ANALYSIS OF DYNAMIC FRACTURE IN DUCTILE SOLIDS |
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| Zheng Jian, Wang Zeping.EXPERIMENTAL STUDY AND NUMERICAL ANALYSIS OF DYNAMIC FRACTURE IN DUCTILE SOLIDS[J].Acta Mechnica Solida Sinica,1994,15(4):345-350. |
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| Authors: | Zheng Jian Wang Zeping |
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| Abstract: | Spall tests for pure copper and LY12 aluminum alloy are performed. The mechanism of the nucleation, growth and coalescence of micro-voids is observed by means of microscopic observation for the recovered specimens. The model presented in the other paper of authors is incorporated in a hydrodynamic one-dimensional finite-difference computer code, to simulate the processes of spallation of pure copper and LY12 aluminum alloy specimens. The model successfully modeled the processes of spallation. |
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| Keywords: | spallation microscopic observation micro-damage numerical simulation |
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