【摘要】 应用时域边界元法研究了结构 介质动力相互作用问题。假设摩擦遵守库仑定理 ,当入射波足够强时界面会出现局部滑移、分离。由于边界上的区域 (滑移、分离和粘着 )是未知的 ,所以 ,笔者研究的实际上是个复杂的边界非线性问题。该模型对评估和预测地埋结构在动荷载下的安全具有重要的理论价值更多还原

【Abstract】 The dynamic interaction between an embedded object and surrounding media with a unilateral frictional contact interface is studied by time-domain boundary element method. Suppose the Coulomb friction law is obeyed. When the incident wave is strong enough, the local slip or separation may take place along the interface. Therefore, the present problem is indeed a problem of nonlinear boundary value. The mixed boundary conditions involve unknown intervals (the slip, separation and stick zones). It is highly important in the theoretical value for the evaluation and prediction of the structural safety of an embedded object.更多还原