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.
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.
出处
《计算物理》
CSCD
北大核心
2007年第4期395-401,共7页
Chinese Journal of Computational Physics
基金
国家自然科学基金(批准号10232040
10572002)资助项目
