采用SemiLoof型约束条件的薄板矩形广义协调元

GENERALIZED CONFORMING THIN PLATE RECTANGULAR ELEMENT BY USING SEMILOOF CONSTRAINTS

本文采用SemiLoof型约束条件,建立一个十二自由度的薄板矩形广义协调元。单元自由度只含角点位移,不含Loof结点位移、单元间的协调条件全部采用点型协调条件,不采用积分型协调条件。此单元吸取广义协调元和SemiLoof元的双重优点,消除其缺点,成为同类低阶薄板单元中的最优单元。

A twelve—DOF generalized conforming thin plate rectangular element is established by using semiLoof constraints. The element DOFs are defined only with displacements at corner nodes. In the formulation only point compatibility conditions are used. This new element which learns from the strong points of both the generalized conforming element and the semiLoof element seems to be one of the best twelve—DOF rectangular thin plate bending elements currently avaiable.