摘要
据Reissner假定,运用广义变分原理,以节点的位移和弯矩、扭矩为基本未知量,构造了一种混合型板单元。该元既可用于分析需考虑剪切效应的中厚板,又可用于分析不计剪切效应的薄板,同时还可解决带有文克尔地基与变温作用的问题。例题计算表明:该元收敛快且内力与位移均有较高精度。
This paper presents a new quadrilateral mixed-type plate bending clement. It can be used in analyzing the general thin plates and the moderate thick plates when the transverse effects must be considered. Several examples are analyzed. The results obtained are, in most cases, more accurate than the conventional finite elements.
出处
《天津大学学报》
EI
CAS
CSCD
1993年第2期95-100,共6页
Journal of Tianjin University(Science and Technology)
关键词
中厚板
薄板
混合型有限元
有限元
moderate thick plate, thin plate, mixed-type finite element
