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有限要素法에 依한 notch部의 應力解析과 光彈性實驗과의 比較
鄭然輝,崔國光 嶺南大學校 工業技術硏究所 1974 연구보고 Vol.2 No.1
The design of machine elements formed with various notched shapes requires accurate predictable stress value of the notched position, therefore, many investigators have dealt with this subject, but they only reached approximate value In this paper, the stress concentration factors of the U-notched plate and V-notched plate subjected to tensile force was calculated by the photo-elasticity experiment and the finite element method, subsequently with equations by above method and many invesgatied equants were compared. The result was as follows. (1) The values of photo-elasticity experiment of the U-notched plate are greater than the values calculated by the finite element method. by 0.5% (2) The values of photo-elasticity experiment of the V-notched plate are 0.4% greater than the values calculate by the finite element method. by 0.4% (3) Trying to compare the values, we applied Armbruster's equation to the U-notched plate and to the V-notched plate and the values calculated by the finite element method. The values of the both theoritical equations are 1.7%, this is 10% greater than the values by finite element method respectively.