非線形感度解析を用いた弾塑性材料の機械的性質推定のための逆問題解析 : 第1報, 非線形感度解析を用いた推定手法と均質材の弾塑性応力-ひずみ関係推定

概要

論文の詳細を見る
In this paper, an inverse analysis method to identify the stress-strain relationships of elastic-plastic materials, using a nonlinear sensitivity analysis, is presented. The identification problem can be defined as a minimization problem, by choosing an appropriate objective function, which consists of displacement and force quantities. The nonlinear sensitivity analysis, which does not require repetitive finite element calculations, forms the basis of the proposed procedure. An algorithm of Nonlinear Programming, coupled with nonlinear sensitivity analysis, results in an optimization process of classical sense. In this paper, the framework of the identification process is pressented and its validity is demonstrated through example problems. Furthermore, the framework of the proposed method, is quite general so that the methodology can be applied to various types of engineering materials.
一般社団法人日本機械学会の論文
1999-05-25