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| 金属板料高速率拉伸试验及其硬化模型的综述 |
| Review of Tensile Tests at High Strain Rates and Hardening Models of Sheet Metal |
| Received:December 23, 2015 Revised:March 10, 2016 |
| DOI：10.3969/j.issn.1674-6457.2016.02.007 |
| 中文关键词: 动态试验 霍普金森杆 双向拉伸 硬化模型 应变速率敏感性 |
| 英文关键词: dynamic test hopkinson bar biaxial tension hardening model strain rate sensitivity |
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| 中文摘要: |
| 针对金属板料的动态试验， 回顾了高应变速率下弹性杆与液压伺服型单轴试验的方法， 介绍了高应变速率下双轴拉伸试验： 动态液压胀形试验与动态十字形试件双拉试验。最后， 根据不同应变速率下流动应力曲线的四大类型， 总结了相应的率相关硬化模型。 |
| 英文摘要: |
| For the dynamic tests of sheet metals， the uniaxial tests at high strain rates using elastic-bar-type and servo-hydraulic test systems have been reviewed， and the biaxial tensile tests at high strain rates， including： dynamic hydraulic bulge test and dynamic biaxial tensile tests of cruciform specimen，have been introduced. Finally，the corresponding rate dependent hardening models have been showed，according to the four kinds of flow stress curve at different strain rates. |
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