準解析的인 方法에 依한 直四角形 平板의 挫屈解析

Abstract

本 論文은 Mindlin 平板理論을 使用, Ritz法을 應用한 準 解析的인 方法으로 單純支持된 面內荷重을 받는 平板挫屈에 對한 것이다.

一般的으로 比較的 두꺼운 平板에 對하여는 Mindlin 平板 理論은 古典的인 板理論을 使用하여 얻어진 값들 보다 낮은 挫屈荷重係數를 갖는 것을 알 수 있다.

In this paper, the buckling analysis of moderately thick plates is considered by semi-analytical method based on Ritz method, using a mindlin's plate theory.

Compared with a wide variety of published results, for both thin and moderately thick plates, excellent accuracy is obtained. Especially compared to the well known method such as finite element method, the present method is very effective in computing time for buckling analysis of a rectangular plate subjected to uniaxial or biaxial load with all edges simply supported.

In general, it is found that for moderately thick plates, Mindlin's plate theory gives lower buckling loads than those obtained using classical thin plate theory.

In this paper, the buckling analysis of moderately thick plates is considered by semi-analytical method based on Ritz method, using a mindlin's plate theory.

Compared with a wide variety of published results, for both thin and moderately thick plates, excellent accuracy is obtained. Especially compared to the well known method such as finite element method, the present method is very effective in computing time for buckling analysis of a rectangular plate subjected to uniaxial or biaxial load with all edges simply supported.

In general, it is found that for moderately thick plates, Mindlin's plate theory gives lower buckling loads than those obtained using classical thin plate theory.