板弯曲有限元方法中的几个问题

Several Basic Problems about Finite Element Methods of Reissner-Mindlin Plate Bending Theory

木文首先简单回顾了板弯曲有限元分析中的主要方法，接着对构造一具有优良品质的Ｒｅｉｓｓｅｒ－Ｍｉｎｄｌｉｎ板弯曲单元所涉及到的有限元方法中的几个基本问题：“自锁”现象，补片试验，零能变形模式等进行了介绍与讨论，最后建议了推导理想的板弯曲单元的正确的途径．

At the beginning of the paper,a brief review is conducted on the main finite element methods of plate bending theory and then several basic problems concerning formation of a tip-quality plate element are discussed,such as shear locking,patch test and zero energy deformation mode etc. Finally,a correct approach to deduce an ideal plate element is proposed.