Abstract : this paper proposed a numerical method to determine the oscillatory stress singularities and the related stress intensity coefficients , by use of common numerical solutions ( stresses or displacements ) which obtained by an ordinary numerical technique such as finite element method or boundary element method 文摘:本文以具有振荡应力奇异性的平面问题为例,提出了一种利用普通的数值分析结果(由有限元或边界元程序计算得到的应力分量或位移分量) ,来确定奇异点附近的振荡应力奇异性次数以及相应的复应力强度系数的数值分析方法。
4 . instead of the applicability problem of some intricate numerical technique in dealing with large number piles and alterable type of pile - groups , based on the dynamic winkler - foundation beam model and haskell - thomson transfer matrix scheme , the explicit expressions indicating force - displacement relationship of pile are derived under simultaneous axial and lateral loads in layered - soil in order to obtain the displacements and internal forces of pile - foundation in frequency - domain 针对在处理多桩数以及不同型式群桩时,数值解析方法存在的复杂性、适用性等问题,本文以动力文克尔梁模型为基本理论,利用基于haskell - thomson理论的传递矩阵法,给出了分层地基中单桩在轴、横多向受力条件下的力与位移动力相互关系的显示表达。