壓縮平板의 最終强度 解析

Abstract

船舶 등 해양 구조물은 주로 平板部材로 구성되어 있고, 이들은 引長과 壓縮荷重을 반복해서 받게된다. 선체구조물의 부재로써 평판은 薄板이기 때문에 압축하중에 의해 파괴되기 쉽다. 따라서 設計를 위하여 壓縮最終荷重의 결정이 요구된다.

本 論文에서는 Ritz法을 應用한 새로운 解析的인 方法을 利用하여 평판의 압축최종하중을 결정하였다. 本 方法을 이용하여 有限要素法 등의 數値解析法에 의한 것 보다 더 效果的으로 좋은 결과를 얻었다.

Offshore structures such as ship's structure are mainly composed of the plate members and the plates are subjected to the tensile and compressive load.

Since the plates as the member of ship's structure are the thin plate, they are likely to be collapsed under the compressive load. Therefore the compressive ultimate load must be determined for design.

In this paper, new analytical method applying the Ritz method is introduced to determine the ultimate compressive load of plates. Results of the present method are more accurate and the present method are more effective and economic than the numerical method such as the finite element method.

Offshore structures such as ship's structure are mainly composed of the plate members and the plates are subjected to the tensile and compressive load.

Since the plates as the member of ship's structure are the thin plate, they are likely to be collapsed under the compressive load. Therefore the compressive ultimate load must be determined for design.

In this paper, new analytical method applying the Ritz method is introduced to determine the ultimate compressive load of plates. Results of the present method are more accurate and the present method are more effective and economic than the numerical method such as the finite element method.