轴对称组合弹性体初应力分析的边界元传递矩阵法

基于边界元与传递矩阵法耦合基础上，提出了一种分析轴对称组合弹性体初应力的新方法。利用边界元和传递矩阵进行分域计算轴对称组合弹性体的初应力，无需在整个结构上进行矩阵组装，只需在轴对称子午面的边界上进行离散。故该方法具有输入数据少，计算精度高及所需计算机内存小等优点，适合在微机上求解大型复杂轴对称组合结构问题。文中给出了一个组合厚壁圆筒的计算实例，分别与有限元解和理论解进行比较；结果表明：本文所提出的

THE INITIAL STRESS ANALYSIS OF COMPOUND ELASTIC AXISYMMETRIC BODY BY A COMBINED BOUNDARY ELEMENT-TRANSFER MATRIX METHOD (BETM)

A new approach (BETM), based on the combination of boundary element and transfer matrix, is proposed for the initial stress analysis of the axisymmetric compound elastic body. The method presented here does not require the assembly of matrices for the entire structure, and only needs discretion of the boundary. So the method has some advantages such as less input data, high accuracy and less memory capacity of computer. This method suits with PC computers in solving problem of concerning large and complex compound structures. Finally, the method is applied to the problem of a compound thick wall cylinder. The results by BETM coincide well with those of the analytical and FEM solutions.