拟协调九结点四边形退化壳单元  

A QUASI-CONFORMING 9-NODE QUADRILATERAL DEGENERATED SHELL ELEMENT

作　　者：关玉璞[1] 唐立民[1] 

机构地区：[1]上海交通大学,大连理工大学

出　　处：《工程力学》1995年第3期22-30,共9页Engineering Mechanics

摘　　要：本文根据胡－鹫津变分原理和退化壳有限元概念，构造了一个拟协调（或称杂交／混合）九结点四边形退化壳单元ＣＳＨ９．该单元克服了剪切闭锁和膜闭锁现象，整体上无零能模式，通过了分片检验。数值算例表明该单元是相当准确的和有效的。A quasi-conforming or hybrid/mixed 9-node quadrilateral degenerated shell element CSH9 has been developed based upon the Hu-Washizu variational principle and the concept of degenerated solid shell element. This shell element is completely free from shear and membrane locking phenomena.It passes the patch test. The spurious Kinematic modes are globally suppressed. Numerical tests indicate that the shell element is highly accurate and effective.

关 键 词：拟协调 有限元 变分原理 退化壳单元 圆柱面壳 

分 类 号：TU333.01[建筑科学—结构工程]