【摘要】 基于滑动最小二乘近似的无单元法摆脱了有限元法节点和单元之间彼此联系的约束 ,能够比较自由地根据实际几何实体情况布置节点、积分子区域 ,并能够根据可能的位移形式采取合适的基函数。本文对无单元法的基本理论进行了简要阐述 ,并以孔洞应力集中问题作为数值算例来说明无单元法在求解边值问题上的灵活性更多还原

【Abstract】 Element free method(EFM) which is based on the moving least squares method,is not constrained by the connectivity between nodes and elements in the finite element method.It can freely distribute nodes and integration subdomains according to the actual geometry,and it can apply the proper basis function according to the possible dpsplacement function.In this paper,the fundamental theory is presented.The numerical result of the hole stress intensity problem shows the flexibility of the EFM.更多还原