【摘要】 应用时域边界元法 ,研究了单侧接触埋置结构与瞬态SH液 (剪切横波 )的动力相互作用 ,当入射SH波足够强时 ,界面会出现局部滑移并假设摩擦遵守库仓定理。笔者从实际情况出发 ,提出了新的数学模型和计算方法 ,计算了埋置矩形结构与瞬态SH波的动力相互作用问题 ,由于对此类问题的深入研究 ,为评估和预测埋置结构在动荷载下的安全性及疲劳寿命提供了重要的理论价值更多还原

【Abstract】 A 2D time domain boundary element method (BEM) for solving dynamic interaction between SH-wave and embedded unilateral contact structure interface is developed.Coulomb friction is assumed on the interface.The incident SH-wave is assumed strong enough to break the friction so that the localized slip takes place along the interface.In order to determine the unknown intervals (the slip and stick zones),an iterative technique is developed.As an example,the scattering of a quadrate cylinder embedded in an infinite solid is considered.It is of great theoretical importance for the evaluation and prediction of the structural safety of an embedded object.更多还原