基于CE/SE方法的二维Euler型多物质流体弹塑性问题计算

计算物理 ›› 2007, Vol. 24 ›› Issue (4): 395-401.

基于CE/SE方法的二维Euler型多物质流体弹塑性问题计算

王景焘¹, 张德良², 刘凯欣¹

1. 北京大学力学与工程科学系, 北京 100871;
2. 中国科学院力学研究所, 北京 100080

收稿日期:2006-03-16 修回日期:2006-08-07 出版日期:2007-07-25 发布日期:2007-07-25
作者简介:王景焘(1979-),男,山东青岛,博士生,从事计算流体力学方面的研究.
基金资助:
国家自然科学基金(批准号10232040,10572002)资助项目

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

WANG Jingtao¹, ZHANG Deliang², LIU Kaixin¹

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

摘要/Abstract

摘要： 将CE/SE方法推广到二维固体流体弹塑性问题的数值计算,同时结合杂交粒子水平集方法追踪物质界面和合适的边界条件,提出一套完整的二维Euler型流体弹塑性计算方案.通过长钨杆侵彻装甲钢实验的数值模拟,对方法的精度和有效性进行验证.

关键词: CE/SE方法, 流体弹塑性模型, 水平集方法, 多物质流动

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

中图分类号:

王景焘, 张德良, 刘凯欣. 基于CE/SE方法的二维Euler型多物质流体弹塑性问题计算[J]. 计算物理, 2007, 24(4): 395-401.

WANG Jingtao, ZHANG Deliang, LIU Kaixin. A Eulerian Approach Based on CE/SE Method for 2D Multimaterial Elastic-Plastic Flows[J]. CHINESE JOURNAL OF COMPUTATIONAL PHYSICS, 2007, 24(4): 395-401.

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