残留応力測定法（孔あけ法）の精度について　第１報　ひずみゲージ貼付位置の影響

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  • Accuracy of residual stress measurement by the hole drilling method. 1st Report. Influence of locations of strain gauges.
  • ザンリュウ オウリョク ソクテイホウ アナアケホウ ノ セイド ニ ツイテ 1

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This paper describes the verification of the accuracy of the residual-stress measurement by the hole drilling method by the use of the indirect fictitious-boundary integral method. As an example, a finite rectangular plate with the initial stress is treated. Also, the residual stress is calculated using the relieved strain during hole drilling, and the accuracy of residual stress measurement is verified by comparing the residual stress, i. e., given initial stress, and the measured (calculated) residual stress. The results are shown for various distances of strain gauges from the hole and for various angles of strain gauges.

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