无单元法在薄板大挠度问题中的应用  

Element-free method for thin plate analysis with large deflection

作　　者：赵洪伟[1] 张伟星[2] 

机构地区：[1]青岛理工大学土木工程学院,青岛266033 [2]青岛理工大学校长办公室,青岛266033

出　　处：《青岛理工大学学报》2007年第4期98-101,123,共5页Journal of Qingdao University of Technology

摘　　要：用无单元法研究了薄板的几何非线性问题,从移动最小二乘法和变分原理出发,推导出了无单元法的几何刚度矩阵,编制了相应的程序,并给出了算例.结果表明,方法合理可行,同有限元相比处理过程更加简单.In this paper, the element-free method （EFM） is used to study the large deflection analysis of thin plates. The corresponding geometric stiffness matrix is derived, using the moving least-square method and variatior principle. Numerical Results show that the method possesses a higher accuracy as compared with the finite element method for the large deflection analysis of thin plate.

关 键 词：无单元法 移动最小二乘法 薄板 大挠度 几何非线性 

分 类 号：O343.5[理学—固体力学]