K-0744 衝撃曲げ試験による応力ひずみ曲線の測定(S10-4 衝撃材料試験における新展開(4))(S10 衝撃材料試験における新展開)

概要

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In this paper a testing method to measure the dynamic stress-strain curve by impact bending test was described. In this method the impact force applied on the 3-point bending specimen and the strain at the reverse side of the impact point of the specimen are measured. On the other hand, the strain is calculated using the measured force and an assumed stress-strain curve. The unknown parameters of the assumed strain-stress curve are determined in order to minimize the residuals sum of squares between the measured strain and the calculated one. Using the present method, some experiments were done with the steel specimen. And obtained results were compared with the results by Herbert's method. As a result it was known that the present method is useful.
社団法人日本機械学会の論文
2001-08-22