| 某型铜材料动态力学性能的数值模拟研究 |
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| 引用本文： | 孙河洋,马吉胜,生龙波,刘海平,吴大林.某型铜材料动态力学性能的数值模拟研究[J].军械工程学院学报,2011(5):75-78. |
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| 作者姓名： | 孙河洋 马吉胜 生龙波 刘海平 吴大林 |
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| 作者单位： | 军械工程学院火炮工程系,河北石家庄050003 |
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| 摘 要： | 采用一种高效的应力更新算法，运用Fortran语言编写Johnson—Cook本构模型的Vuamt子程序，模拟材料在高速冲击工况下的动态力学性能，研究塑性大应变、高应变率以及温度软化作用对材料力学性能的影响。
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| 关 键 词： | 冲击 非线性 应力更新算法 Johnson—Cook模型 Vumat |
Study on the Numerical Simulation of a Cu Material＇s Dynamic Mechanical Property |
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| SUN He-yang,MA Ji-sheng,SHENG Long-bo,LIU Hai-ping,WU Da-lin.Study on the Numerical Simulation of a Cu Material＇s Dynamic Mechanical Property[J].Journal of Ordnance Engineering College,2011(5):75-78. |
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| Authors: | SUN He-yang MA Ji-sheng SHENG Long-bo LIU Hai-ping WU Da-lin |
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| Institution: | (Department of Artillery Engineering,Ordnance Engineering College,Shijiazhuang 050003,China) |
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| Abstract: | An efficient stress update algorithms was adopted, and a Vumat subroutine was programmed to introduce the Johnson-Cook constitute model by FORTRAN codes. The dynamic mechanical properties of a material were simulated under the condition of high speed impact and the influence of the large plasticity strain, high strain rate and temperature softening on the material＇s mechanical performance were studied. |
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| Keywords: | impact non-linear stress update algorithm Johnson-Cook model Vumat |
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