Constitutive study for tungsten alloy under high pressure

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Abstract
This article describes a method which combines the static pressure experiment,dynamic experiment and theoretical calculation to obtain the parameters in the SCG constitutive model for tungsten alloy under high pressures. By using the constitutive model we obtained in numerical simulation that the calculated profiles of particle velocity are in accordance with the experimental results. We also conducted some other simulations by using different constitutive models and compared them with experimental results. The results show that the constitutive model we obtained was the best.

Keywords:
constitutive equation /

Steinberg model /

numerical simulation /

prof ile of particle velocity
Authors and contacts
Hua Jing-Song¹,

Jing Fu-Qian¹,

Dong Yu-Bin¹,

Tan Hua¹,

Shen Zhong-Yi²,

Zhou Xian-Ming¹,

Hu Shao-Lou¹

(1)中国工程物理研究院冲击波物理与爆轰物理重点实验室，绵阳 621900; (2)中国科学院物理研究所，北京 100080
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