| Effect of Temperature on the Void Growth in Pure Aluminium at High Strain-Rate Loading |
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| 作者姓名： | 祁美兰 贺红亮 晏石林 |
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| 作者单位： | [1]Laboratory for Shock Wave and Detonation Physics Research, Institute of Fluid Physics, China Academy of Engineering Physics, Mianyang 621900 [2]School of Sciencej Wuhan University of Technology, Wuhan 430070 |
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| 基金项目： | Supported by the National Natural Science Foundation of China and the Science and Technology Foundation of State Key Laboratory of Shock Wave and Detonation Physics under Grant Nos 10476027 and 9140C6701010701. |
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| 摘 要： | With the environment temperature varying from 273 K to 773 K, the dynamic process of void growth in pure aluminium at high strain-rate loading is calculated based on the dynamic growth equation of a void with internal pressure. The result shows that the effect of temperature on the growth of void should be emphasized. Because the initial pressure of void with gas will increase and the viscosity of materials will decrease with the rising of temperature, the growth of void is accelerated. Furthermore, material inertia restrains the growth of void evidently when the diameter exceeds 10 μm. The effect of surface tension is very weak in the whole process of void growth.
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| 关 键 词： | 温度 空穴扩大 压力 纯铝 |
| 收稿时间： | 2006-12-25 |
| 修稿时间： | 2006-12-25 |
Effect of Temperature on the Void Growth in Pure Aluminium at High Strain-Rate Loading |
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| QI Mei-Lan,HE Hong-Liang,YAN Shi-Lin.Effect of Temperature on the Void Growth in Pure Aluminium at High Strain-Rate Loading[J].Chinese Physics Letters,2007,24(8):2271-2273. |
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| Authors: | QI Mei-Lan HE Hong-Liang YAN Shi-Lin |
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| Institution: | 1.Laboratory for Shock Wave and Detonation Physics Research, Institute of Fluid Physics China Academy of Engineering Physics, Mianyang 621900 ;2.School of Science, Wuhan University of Technology, Wuhan 430070 |
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| Abstract: | |
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| Keywords: | 47 11 +j 83 10 j 62 50 +p |
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