ひずみゲージと体積力法を用いての実構造表面における切欠き部付近の応力状態の推定 : 第1報,解析法の提案

概要

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In this paper, a method of estimating the stress fields with strain gage's outputs and the body force method (BFM) is proposed. A notch of 3-dimensional structure surface is considered as an observed domain. The observed domain is treated as a pseudo-3-dimensional plate, not a part of a 3-dimensional body. In other words, body force is distributed along the observed domain to add the 3-dimensional influence to a plane stress problem. In this paper, the result due to the elastic FEM analysis is used instead of strain gage's outputs on real structures. A self-assessment criterion is proposed. In addition, it is possible to obtain the stress value at the 10% error by the self-assessment of the result due to the present method. In the second report, the present method will be applied to crack detection.
社団法人日本機械学会の論文
2002-04-25