薄肉シェルの弾塑性大たわみ解析と抗力機構に関する研究 : (その1)合応力表現による解析法

概要

論文の詳細を見る
The analysis of thin shell during large deflection has complex problem associated with the geometrical and material nonlinearities, in which the solutions for stress and deflection are desired to obtain the same level of accuracy. One of ordinary and powerful method for this subject is a finite element method that generally has inconvenience to be necessarily extensive calculation due to large number of freedom. This paper is concerned with the elasto-plastic analysis of thin shell structures, using a modified version of hybrid method by S. N. Atluri, et al. For elasto-plastic materials, when the stress distribution across the panel thickness is expressed as continuous function using the delta-sequence, numerical integration can be done away with. This approach introduces considerable reduction of computer time. The results obtained by this analysis could be discussed in the mechanism of resisting external force in thin shell structures during large deflection.
社団法人日本船舶海洋工学会の論文