초기결함을 갖는 平板의 壓縮最終强度 解析에 관한 연구

Abstract

甲板을 구성하는 板部材는 船舶의 縱强度에 중요한 역할을 하므로, 最適設計를 위해서는 이들 板部材의 壓縮最終强度를 결정해야 한다.

本 論文에서는 準解析的 方法을 이용하여 실제 판의 彈塑性 大變形 거동을 살펴서 그에 등가되는 판의 해석결과로부터 壓縮最終强度를 추정할 수 있는 公式을 제안하였다.

Since plate members of deck play an important role in longitudinal strength of ship, it is necessary to determine their compressive ultimate strength for optimal design.

In this paper, using the semi-analytical method, elasto-plastic large deformation behavior of real plates and those of equivalent plates to them are considered and from those results, design formula for prediction of ultimate strength is suggested.

Since plate members of deck play an important role in longitudinal strength of ship, it is necessary to determine their compressive ultimate strength for optimal design.

In this paper, using the semi-analytical method, elasto-plastic large deformation behavior of real plates and those of equivalent plates to them are considered and from those results, design formula for prediction of ultimate strength is suggested.