摘要
本文根据广义协调的思想,在平面应力矩形单元双线性协调位移场中,引入附加广义泡状位移场,构造出一种具有平面内旋转自由度的矩形膜单元,它满足广义协调条件。数值计算结果表明,这种单元有很高的计算精度,而且计算量少,是一种能收敛于精确解的单元。
Based on the concept of generalized compatibility, a rectangular
membrane element with drilling freedoms is formulated by introducing
a generalized bubble displacement field on the basis of the bilinear conforming displacement field. Numerical results show that the present element converges and is well behaved.
出处
《工程力学》
EI
CSCD
1992年第2期68-75,共8页
Engineering Mechanics
关键词
有限元
广义协调元
膜元
Finite element, Generalized conforming element, Membrane element.
