CHINESE JOURNAL OF COMPUTATIONAL PHYSICS ›› 2007, Vol. 24 ›› Issue (4): 395-401.

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A Eulerian Approach Based on CE/SE Method for 2D Multimaterial Elastic-Plastic Flows

WANG Jingtao1, ZHANG Deliang2, LIU Kaixin1   

  1. 1. LTCS and Department of Mechanics and Engineering Science, Peking University, Beijing 100871, China;
    2. Institute of Mechanics, Chinese Academic of Science, Beijing 100871, China
  • Received:2006-03-16 Revised:2006-08-07 Online:2007-07-25 Published:2007-07-25

Abstract: We extend the CE/SE scheme and present a complete Eulerian approach for two-dimensional(plane strain and axisymmetry) elastic-plastic flows with solid features.Eulerian governing equations are adopted and solved on a fixed Cartesian grid.Johnson-Cook constituted equations and Mie-Grüneisen equation of state are used to describe materials.A hybrid particle level set method is used to trace interfaces of materials.Two types of boundary condition are presented in tracking interface.The penetration of a steel target by a WHA long rod is simulated and the computational results are carefully compared with those in other literatures.

Key words: CE/SE method, elastic-plastic flow, level set method, multi-material flow

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