A three-dimensional Eulerian method for the numerical simulation of high-velocity impact problems

doi:10.1088/1674-1056/23/3/034601

Abstract In the present paper, a three-dimensional (3D) Eulerian technique for the 3D numerical simulation of high-velocity impact problems is proposed. In the Eulerian framework, a complete 3D conservation element and solution element scheme for conservative hyperbolic governing equations with source terms is given. A modified ghost fluid method is proposed for the treatment of the boundary conditions. Numerical simulations of the Taylor bar problem and the ricochet phenomenon of a sphere impacting a plate target at an angle of 60° are carried out. The numerical results are in good agreement with the corresponding experimental observations. It is proved that our computational technique is feasible for analyzing 3D high-velocity impact problems.

Keywords: three-dimensional numerical simulation conservation element and solution element (CE/SE) method ghost fluid method high-velocity impact

Received: 12 September 2013
Revised: 23 July 2013
Accepted manuscript online:

PACS:	46.15.-x	(Computational methods in continuum mechanics)
	62.20.mm	(Fracture)
	64.30.Ef	(Equations of state of pure metals and alloys)

Fund: Project supported by the National Natural Science Foundation of China (Grant Nos. 10732010, 10972010, and 11332002).

Corresponding Authors: Liu Kai-Xin
E-mail: kliu@pku.edu.cn

Cite this article:

Wu Shi-Yu (吴士玉), Liu Kai-Xin (刘凯欣), Chen Qian-Yi (陈千一) A three-dimensional Eulerian method for the numerical simulation of high-velocity impact problems 2014 Chin. Phys. B 23 034601

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