光弾性実験用複合材料の開発に関する研究 : 第2報、光弾性感度による物性値の測定法

概要

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Physical properties (E_x, E_y, G_<xy>, ν_<xy>) are necessary for analyzing the plane problems and fracture mechanics of orthotropic material, and measurements of physical properties and stress fringe values (f_x, f_y, f_<xy>) for orthotropic material are needed for each photoelastic experiment on orthotropic material. Strain gages are generally used to measure the physical properties of orthotropic material, but errors due to various factors are common. Therefore, relationships between physical properties and stress fringe values are suggested in this paper. These can be utilized instead of the strain gage to measure physical properties with stress fringe values. This is confirmed by experiment in this paper. Specimens of C. D. are better than those of B. M. for measurement of the stress fringe value of an orthotropic material. Stress fringe value fxy can be obtained from equation (19) with f_x, f_y, f_θ and θ; in this case, θ is between 40°and 65°. The optimum value is θ=45°.
一般社団法人日本機械学会の論文
1989-11-25