材料交界面上连续应力分析的改进拉氏乘子法

Interface Continuous Stress Analysis by Augmented Lagrangian Method

引进材料界面的节理单元 ,以其刚度参数为罚参数 ,利用代表界面接触应力的拉氏乘子 ,通过迭代求解得到界面上的应力 ,为计算粘结在一起的不同材料交界面上的应力提供了一种非常有效的方法。

Considering the stiffness of joint element as a penalty number and the Lagrange multiplier representing the interface stress, the paper obtains interface stresses of the bonded materials by an iterative method. The results show that it presents a very effective way to solve this kind of problem.