层状介质中受冲击载荷的裂纹问题

本文对由不同正交异性材料组成的层状结构中受冲击载荷的Ⅲ型裂纹动力学问题给出了解的一般表示。文中利用结合面的边界条件,将问题中所有各量用单一未知函数表示,用积分变换方法将受冲击力作用问题化为对偶积分方程,并用Copson方法给出了解。本文方法也可以应用到裂纹表面受任意动载荷的情况。

CRACK IN LAMINATED MEDIA UNDER IMPACT LOADING

In the present paper the general representations for the solution of the dynamical crack problems of the laminated media consist of different orthotropic layer are derived. Using conditions of the welding surfa.ce, we express all the quantities in terms of a single unknown function. Using method of integral transform, we formulate the impact loading problem as dual integral equations. Using the Copsons method, the solution is derived. The method in the paper is not difficult to generalize for the case of an arbiritrary loading applied to the crack.