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渡壁 智祥; Jin, C.*; 臼井 嘉哉*; 酒井 新吉*; 若井 隆純; 大鹿 順司*; 月森 和之
Proceedings of 23rd International Conference on Nuclear Engineering (ICONE-23) (DVD-ROM), 5 Pages, 2015/05
For the purpose of confirming failure modes and safety margin, some studies on the ultimate strength of thin-walled piping components for Sodium-cooled Fast Reactors (SFRs) under extreme loading conditions such as large earthquakes have been reported these several years. Nonlinear finite element analysis has been applied in these studies to simulate buckling and yielding with large deformation, whose accuracy is dependent on the element type, the mesh size, the elasto-plastic model and so on. It is important to check the validation of a finite element model for nonlinear analysis especially under extreme loading conditions. This paper presents static and dynamic analyses of a thin-walled elbow with large deformation under large seismic loading, and discusses the validation of the FEA models comparing with experimental results.
岩田 耕司; 月森 和之; 千葉 隆久*; 酒井 新吉*; 上野 睦郎*; 坂井 哲也*; 酒井 光*
JNC TN9520 2003-006, 569 Pages, 2003/09
本解析例題書は、汎用非線形構造解析システムFINAS (Finite Element Nonlinear Structural Analysis System)による各種解析例を収録したものである。解析例題書は基礎編と応用編に分かれており、基礎編は解析タイプごとに理論解等の参照解がある基本的例題を、応用編はより複雑で実際的な例題を取り上げている。各例題は、初心者でも追計算が可能なように、できる限り全入力データリストと主要結果を載せるようにした。なお、ここでの解析はすべてFINAS Version 13.0により実行したものである。