高温における鋼の回転曲げ塑性疲れ試験

概要

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Constant stress and constant deflexion cantilever rotating bending fatigue tests of annealed 0.35% Carbon steel were carried out at a frequency of 62rpm at the temperatures of room, 200℃, 350℃ and 500℃. In the constant stress test, the change of vertical and horizontal deflexion of specimen was observed; in the constant deflexion test, the change of stress was also recorded. Consideration was given to S-N diagram, δ_ν-N diagram, change of deflexion and stress, hysteresis energy and so on. The main conclusions of the paper are as follows : in the constant stress and constant deflexion tests, S-N diagram shows considerably same tendency; the change of deflexion and stress differs much at different temperatures, and so does hysteresis energy; the fatigue life of the constant stress test is longer than that of the constant deflexion test in the plastic range, comparing on the bases of the static bending test.
社団法人日本機械学会の論文
1963-10-25