| 引用本文: | 王泽平,恽寿榕,谢放.层裂问题的数值研究.[J].国防科技大学学报,1991,13(3):24-28.[点击复制] |
| Wang Zeping,Yun Shourong,Xie Fang.Spallation Studies with Calculation[J].Journal of National University of Defense Technology,1991,13(3):24-28[点击复制] |
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| 层裂问题的数值研究 |
| 王泽平1, 恽寿榕1, 谢放2 |
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(1.北京理工大学力学工程系;2.航天部一院十四所)
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| 摘要: |
| 本文对Carrol、Holt 和 Johnson 提出的延性材料损伤断裂进行了改进。在模型中考虑了材料的硬化效应和空穴成核的影响。用数值方法模拟了高速碰撞中 OFCH铜和铝的层裂过程，其结果与实验吻合得相当好。 |
| 关键词: 层裂，空穴成核成长，损伤度 |
| DOI： |
| 投稿日期：1990-05-21 |
| 基金项目: |
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| Spallation Studies with Calculation |
| Wang Zeping1, Yun Shourong1, Xie Fang2 |
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(1.Department of Dynamic Engineering，Beijing Institute of Technology;2.The First Academy 14th Place of the Spacelight Department)
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| Abstract: |
| The dynamic fracture model proposed by J. N. Johnson is modified by considering materals work-harding and void nuc1eation. Numerial calculations of aluminium and OFCH copper spallation processes in its impact tests are carried on. The computation are in fair agreement with the experimental results. |
| Keywords: spallation,void nucleation and growth,porosity |
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