光弾性画像解析　ＩＩ　　任意方向釣合い式の直接積分による応力解析

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  • Image analysis of photoelastic fringes. (2nd report. Stress analysis based on a directly integrated stress-equation of equilibrium in any direction).
  • コウダンセイ ガゾウ カイセキ 2 ニンイ ホウコウ ツリアイシキ ノ チョク

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This paper describes a method for the stress analysis in the 2-dimensional region of a model in a photoelastic experiment. The present method uses an approximate equation of a directly integrated stress-equation of equilibrium between two points in any direction. The equation of sums of normal stresses induced from the approximate equation etc. is applied to any set of two points in the region to analyze the stresses. The method of least squares is used to constitute the simultaneous equations for the sums of stresses. The sums of stresses are obtained by solving the simultaneous equations, and the stress components are determined. The present method is applied to a circular disk subjected to diametral compression, and the results agree well with theoretical solutions.

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