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

Abstract:

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 103S-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.

• Periodical: Advanced Materials Research (Volumes 97-101)
• Pages: 278-281
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.97-101.278
• Online since: March 2010
• Authors: Xiu Li Zhang, Yi Ming Mi, Tao Ji, Hong Xia Xu, Yan Ting Xie, Ying Shen
• Keywords: Numerical Simulation, Plastic Constitutive Relation, Split Hopkinson Pressure Bar (SHPB), X70 Pipeline Steel

References

[1] Kichida K, Akisue O: Tetsu-To-Hagane (铁と钢), Vol. 76 (1990), p.759.

[2] SHA Guiying, HAN Enhou: Chinese Journal of Materials Research, Vol. 19(6) (2005), p.561( In Chinese).

[3] ZHANG Xiuli, LIU Changli: Journal of Materials Engineering, Vol. 9 (2006), p.53 (In Chinese).

[4] G. R. Johnson, W. H. A. Cook: Proceedings of the 7th International Symposium on Ballistics. The Hague, Netherlands, 1983, p.541.

[5] FAN Yafu, DUAN Zhuping: Mechanics and Practice, Vol. 25(5) (2003), p.40 (In Chinese).

[6] CHEN Gang, CHEN Zhong-fu: Explosion and Shock Waves, Vol. 25(5) (2005), p.451(In Chinese) (a) (b).