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对于板壳问题,将中面挠度和中面法线转角分开,作为三个基本位移分量来分析,特别是它将板、壳的横向剪切变形影响引入分析之中,从而使得厚板、厚壳的分析不再经过三维途径而简化为二维问题,作为厚板、厚壳分析的一种有效方法而吸引了不少学者的注意。Mindlin在板问题的分析中,考虑了剪切变形和转动惯量的影响,提出了弹性厚板弯曲运动的基本方程式。本文试图就四边简支矩形厚板在冲击荷载作用下。采用重三角
For the plate shell problem, the mid-plane deflection and the mid-surface normal rotation angle are separated and analyzed as three basic displacement components. In particular, the lateral shear deformation effects of the plate and shell are introduced into the analysis to make the plate thicker and thicker. The analysis of the shell is no longer reduced to a two-dimensional problem through the three-dimensional approach. It has attracted the attention of many scholars as an effective method for thick plate and thick shell analysis. In the analysis of Mindlin’s plate problem, Mindlin considered the effects of shear deformation and moment of inertia, and proposed the basic equations for bending motion of elastic slabs. This article attempts to simply support rectangular slabs with four sides under impact loading. Using a heavy triangle