分区粘弹性介质样条边界元反分析数值解法

Formulistic method of spline boundary element back-analysis for inhomogeneous viscoelasticity media

通过改造非均质样条边界元列式方法,建立了分区粘弹性介质边界元反分析的数值求解格式,该数值解法与均匀弹性体边界元法相类似,不需作分区组合计算,简化了计算程序,减少了计算工作量、提高了计算精度和解题效率,为解决非均质围岩反分析中遇到的困难奠定了基础。

By changing the formulistic method of spline boundary element, the numerical solution of back-analysis was established for inhomogeneous viscoelasticity media. This method is analogical to the boundary element method for homogeneous elastic solids. It does not require to solve the problems by zoning technique so that the solution scheme is simplified and calculations can be considerably reduced. The calculative precision and efficiency were improved greatly. It lays the foundation for solving the problem of back-analysis in inhomogeneous viscoelasticity media.