摘要
本文采用三角形六结点混合单元的有限元方法求解弹性薄板。采用三角形单元的三个角点位移ω_1,ω_2,ω_3和三边中点弯矩 M_(n1),M_(n2),M_(n3)为未知数。它的特点是可以适应任意边界条件;弯矩解答精度比较高;程序简明。这个方法是对弹性薄板进行应力分析的实用方法。
In this paper,the finite element method of a six-node triangular mi-xed element is used to solve the problem of the elastic thin plate.The three angular nodal displacements(w_1,w_2,w_3),and the three side middle point moments(M_(n1),M_(n2),M_(n3))in the trangular element are unk-nown variation.The characteristic of this method is that it can be adap-ted to any boundary condition。The answer to the moment is accurate and the calculation program is simple.This method is a practical meth-od is a practical method to the stress analysis of the elastic thin plate.
关键词
弹性薄板
边界条件
有限元法
弯矩
finit element method
elastic thin plate
displacement
moment
boundary condition
