摘要
本文根据广义协调的概念,通过引进单元结点刚体转角,构造出了两种具有平面内旋转自由度的三角形膜元。单元列式简单,并能通过分片检验,数值算例表明,它们是一类高精度的收敛单元。
Two triangular membrane elements arc derived from the concept of generalized conforming finite element by means of introducing vertex rigid rotational freedom. The elements, with simple formulation, pass the patch test. Numerical results exhibit that the accuracy obtained with present elements is exceptionally good.
出处
《工程力学》
EI
CSCD
1993年第2期31-39,共9页
Engineering Mechanics
关键词
广义协调条件
三角形膜元
平面应力
finite clement, generalized compatible condition, triangular membrane element
