1204 三次元ハイブリッドサンプリングモアレ法による構造物の応力集中評価(OS12-1 実験・計測における先端技術とその応用-光学的測定法の応用-)

概要

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In this study, a 3D hybrid sampling moire method, which combines sampling moire method and finite element (FE) analysis in 3D model, is developed for evaluating the stress concentration of structures. Three-dimensional displacement distribution measured by the sampling moire method is compared with the analyzed result based on elastic FE analysis at assumptive boundary conditions. The optimum boundary conditions are determined by fmding the minimum evaluation error between the displacement distributions obtained by experiment and FE analysis. Once the appropriate boundary conditions are determined, three-dimensional distribution of strain and stress, including the inner or occlusion parts, can be obtained by FE analysis for evaluation the stress concentration. The hybrid technique is useful to evaluate reliability of various actual structures in real phenomenon.
一般社団法人日本機械学会の論文
2010-10-09