【摘要】 论文介绍了处理面内裂纹扩展问题的两种断裂单元,分别为处理线性问题的VCCT哑节点断裂单元和处理非线性问题的DCZM断裂单元.并与有限元软件ABAQUS的断裂单元相对比,以验证其计算准确性和对网格、步长等不敏感性,以及计算效率高等特点.更多还原

【Abstract】 This paper introduces two interface elements to solve 2D progressive crack growth problems,the fracture elements based on the virtual crack closure technique and discrete cohesive zone model.With the comparison to element provided by the ABAQUS,the computing results show that the fracture elements is easy to use,rather accurate and insensitive to the FEA mesh size.更多还原