摘要
提出采用一种非协调元有限元特征法来计算各向异性材料在反平面剪切载荷作用下的奇性应力指数和奇性场角分布.该方法没有采用奇异变换技术.与以前的几种解析法比较,结果表明这种方法的收敛性好,精度高,可以求解关于复杂几何体问题.
A new non-conforming finite element FE eigenanalysis method is developed to determine the order and angular variation of singular stress states at material and geometric discontinuities in anisotropic materials subject to antiplane shear loading. The singular transformation technique is not used in the assumption of displacement fields surrounding the wedge tip. The simplicity and accuracy of the method are demonstrated by comparison to several previous antiplane shear solutions. The nature and speed of the convergence of the eigensolution suggests that the solution presented here could be used in computing stress intensity factors in complex globle geometries.
出处
《华东交通大学学报》
2004年第2期6-9,共4页
Journal of East China Jiaotong University
