【摘要】 在板弯曲的有限元计算中 ,因为剪切闭锁现象导致厚板元无法自动退化为薄板元 ,工程中很难构造既适用于厚板又适用于薄板的计算单元 ,因此采用由龙驭球教授提出的广义协调元法 ,构造了矩形厚薄板弯曲通用计算单元 .通过铁木辛柯梁理论 ,建立了板单元边界和板单元内部的位移插值场函数 .计算结果表明该单元可顺利解决剪切闭锁现象 ,可在实际工程中推广应用更多还原

【Abstract】 For the reason of shear locking,it is difficult to construct a kind of finite element that can be used for both thick and thin plate when calculating plate bending.This passage,based on the thick beam theory of Timoshenko,constructed functions of interposing displacement field in plate and,by using the theory of generalized conforming element provided by professor Long Yuqiu,formed a new element.The calculating results are of high accuracy and prove it is a useful element in computing plate bending.更多还原