Study on the Dynamic Behaviors of X70 Pipeline Steel by Numerical Simulation

被引：7

作者：

Zhang, Xiuli ^{[1
]}

Mi, Yiming ^{[1
]}

Ji, Tao ^{[1
]}

Xu, Hongxia ^{[1
]}

Xie, Yanting ^{[1
]}

Shen, Ying ^{[1
]}

机构：

[1] Shanghai Univ Engn Sci, Sch Fundamental Studies, Shanghai 201620, Peoples R China

来源：

MANUFACTURING SCIENCE AND ENGINEERING, PTS 1-5 | 2010年 / 97-101卷

关键词：

X70 pipeline steel; Split Hopkinson Pressure Bar (SHPB); Plastic constitutive relation; Numerical simulation;

D O I：

10.4028/www.scientific.net/AMR.97-101.278

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Using the commercial code ANSTS/LS-DYNA, this study has established a Split Hopkinson Pressure Bar (SHPB) finite element model (FEM) of X70 pipeline steel. Moreover, the stress-strain behavior of X70 pipeline steel has been investigated by a simplified Johnson-Cook model. The stress and strain relationship of X70 pipeline steel under different compact speeds is obtained under the high strain rate of 10(3)S(-1). The results obtained by numerical simulation agree well with those by experiments, and the parameters of Johnson-Cook model describe accurately the mechanical behaviors of X70 pipe line steel under high strain rate. This conclusion will serve as an important reference for developing and applying materials.

引用

页码：278 / 281

页数：4

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