| Study on the Dynamic Behavior of Tungsten Alloy at Strain Rates up to 5 000s^-1 |
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| 引用本文： | 张宝(金平,郑玉六,武海军. Study on the Dynamic Behavior of Tungsten Alloy at Strain Rates up to 5 000s^-1[J]. 北京理工大学学报(英文版), 2004, 13(3): 270-273 |
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| 作者姓名： | 张宝(金平 郑玉六 武海军 |
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| 作者单位： | StateKeyLaboratoryforthePreventionandControlofExplosionDisasters,BeijingInstituteofTechnology,Beijing100081,China |
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| 摘 要： | The dynamic stress-strain curves of 93% tungsten (W) alloy in the forged state at strain rates up to 5 000s^-1 and in the temperature range from 223 K to 473 K were measured with the split Hopkinson pressure bar (SHPB) technique. Based on the above experimental data a dynamic constitutive equation considering the effects of strain rate, temperature and the special microstructure of such a kind of W-alloy was proposed. The numerical simulation for the experimental process with this constitutive equation was also carried out, the results show that the constitutive relationship constructed in this paper is very satisfactory for representing the dynamic responsive behavior of material.
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| 关 键 词： | 动态特性 钨合金 应变速率 组织关联 组织模型 |
| 收稿时间： | 2004-04-06 |
Study on the Dynamic Behavior of Tungsten Alloy at Strain Rates up to 5 000 s-1 |
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| ZHANG Bao-ping,ZHENG Yu-liu and WU Hai-jun. Study on the Dynamic Behavior of Tungsten Alloy at Strain Rates up to 5 000 s-1[J]. Journal of Beijing Institute of Technology, 2004, 13(3): 270-273 |
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| Authors: | ZHANG Bao-ping ZHENG Yu-liu WU Hai-jun |
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| Affiliation: | State Key Laboratory for the Prevention and Control of Explosion Disasters, Beijing Institute of Technology, Beijing 100081, China |
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| Abstract: | The dynamic stress-strain curves of 93% tungsten (W) alloy in the forged state at strain rates up to 5 000 s-1 and in the temperature range from 223 K to 473 K were measured with the split Hopkinson pressure bar (SHPB) technique. Based on the above experimental data a dynamic constitutive equation considering the effects of strain rate, temperature and the special microstructure of such a kind of W-alloy was proposed. The numerical simulation for the experimental process with this constitutive equation was also carried out, the results show that the constitutive relationship constructed in this paper is very satisfactory for representing the dynamic responsive behavior of material. |
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| Keywords: | tungsten alloy constitutive relationship high strain rate effect dynamic behavior of material |
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