两种内嵌软化带的有限元计算方法的比较

Comparison between two FEMs with inner softening band

首先对两种内嵌软化带的有限元计算方法作简单的介绍 ,然后从平衡方程、断裂面应力和单元应力的相互关系以及对刚体位移的适应能力等方面对两种方法进行比较 ,得出一些有用的结论 ,为进一步研究指明了方向 .

Firstly two FEMs with inner softening band are simply introduced, then these two methods are compared in the aspects of equilibrium functions, the relationship between the stress in element and the stress in fractured sarface as well as the adaptability to rigid displacement. At last some useful conclusions are obtained and the new direction for research is pointed out.