Combined the Lagrange multiplier and penalty function methods, the augmented Lagrangian method is used to treat the contact constraint and solved the non-linear and non-smooth problems of the mechanical response perfectly.

• 在求解方法上,综合了Lagrange乘子法与罚方法的优点,采用增广的Lagrangian方法处理接触界面约束,很好地解决了接触问题中的高度非线性和响应不平滑性。