摘要
介绍一种能够模拟材料开裂过程的有限元方法,该方法引入单元分裂和界面分离技术,结合具体的破坏准则,模拟材料变形中的破坏,同时还可以方便地处理材料中任意分布的界面结构．以三点弯曲实验为例,通过数值模拟结果和实验数据的比较,验证了该方法的适用性．
An element splitting technique is introduced into the discontinuous finite element method which admits discontinuity between elements by using joint elements. The method can be applied to simulate the fracture of materials not only at the interfaces but also in the material mass based on a given criteria. The validation of this method is shown by comparing the numerical calculation with the 3-point bending experiment.
出处
《力学与实践》
CSCD
北大核心
2006年第4期54-59,共6页
Mechanics in Engineering
关键词
有限元
界面
单元分裂
动态松弛
FEM, interface, splitting of element, dynamic relaxation
