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无氧铜动态卸载行为的数值模拟

DOI: 10.11858/gywlxb.2005.04.014, PP. 361-364

Keywords: 爆炸力学,数值计算,无氧铜,JC模型,SCG模型

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Abstract:

分别利用Johnson-Cook(JC)本构模型和Steinberg-Cochran-Guinan(SCG)本构模型对无氧铜在10~20GPa冲击压力下的卸载过程进行了数值模拟,与冲击-卸载实验结果比较表明,在这样的冲击压力下无氧铜的应变率效应仍然明显,JC模型对无氧铜的动态卸载行为有较好的描述。

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