Simulation Research of High-Speed Projectile Penetrating Steel

Abstract:

The prototype testing of penetration requires a large amount of manpower, material and financial resources. So computer simulation technoolgy is used to save the resource.The process of high-speed penetration is simulated based on nonlinear dynamic analysis software ANSYS/LS-DYNA, and especially the simulation process of ANSYS/LS-DYNA is stated. Firstly, the theoretical analysis of material model and state equation are completed in the process of simulation. And by using the post-processor LS-PREPOST of LS-DYNA, the effective stress curve and acceleration changing curve were obtained. Simulation results show that: JOHNSON_COOK material model is correct in solving the problem of high-speed penetration, and the stress of internal projectile is decreasing along the axial direction.

• Periodical: Advanced Materials Research (Volumes 211-212)
• Pages: 347-351
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.211-212.347
• Online since: February 2011
• Authors: Yun Bo Shi, Peng Lan Chai, Xing Juan Zhao, Ming Si Qi, Jun Liu
• Keywords: Acceleration, High-Speed, LS-DYNA, Penetration, Stress

References

[1] WANG De-wu, GAO Hong-quan, DU Hai-xia, WANG Shao-long. The Analysis and Simulation of Penetrating Movement of Oblique Projectile DANJIAN YU ZHIDAO XUEBAO 2006；3（26）：121-123.

[2] Hallquist JO. LS-DYNA Theorymanua, l Livermore Software Technology Corporation, (2006).

[3] Livermore Software technology corporation[A]. LS_DYNA Key-word users' manual[C] . California: Livermore, 1992-(2003).

[4] Wang Shengwu1, Shi Xiuhua1, Wang Yonghu2, Wei Zhaoyu1. Simulation of Stiffened-plate Water-entry Impact Based on ANSYS/LS-DYNA. Computer Measurement & Control　2010 18（6）；1401-1406.

[5] ZHANG Xiao-po, SHIQuan, WANG Guang-yan. Finite Element Analysis of Columniform Fragment Penetrating TargetBased on LS-DYNA . Science Technology and Engineering 2007；23（7）6004-6009.