3318 構造強度を特徴づける極限荷重の意味とその評価方法

概要

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Recent advancements in computer-related technology are making it easier and easier to perform detailed finite element analysis such as three-dimensional and inelastic analyses. Finite element limit analysis with an assumption of elastic-perfectly-plastic body, which is a simpliest way of utilizing inelastic analysis, can provide analysts with useful information on structural strength inspite of its simplicity. This method is particularly effective for three-dimensional geometry by eliminating the necessity of outdated stress classification. In obtaining limit load with a standard finite element program, an analyst must know well about relation between detailed procedures of analysis and their consequences. Because appropriate procedures depens upon objectives of the analysis to perform. This paper describes the meaning of limit load in strcutural strength evaluations, then provides theoretically information on debatable treatment of multiple loads.
一般社団法人日本機械学会の論文
2000-07-31