...有限元；试探函数；厚薄通用板元；剪切闭锁 [gap=9405]Key words: finite element; trial function; thick-thin plate element; shear locking.
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In this paper, a new quadrilateral thin-thick plate bending element with only 12 degrees of freedom, TACQ, is developed by using the area coordinate method.
本文采用四边形面积坐标，利用假设剪切应变场方法和广义协调理论构造出一个具有12个自由度的四边形厚薄板通用弯曲单元TACQ。
On such basis, an incremental finite element formulation for nonlinear vibration of moderately thick and thin plate is presented.
据此，建立了中厚度-薄板非线性振动的增量有限元列式。
An element H13 is obtained by revising the stress parameters, which enables avoiding the locking phenomenon and gives better results for either thin or moderately thick plate.
通过适当调整应力参数而得到的单元h _(13)避免了上述困难，无论对薄板还是中厚板均给出了良好的结果。
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