Departmental Bulletin Paper 組合せ軸力-ねじり疲労に及ぼす組合せ平均応力の影響の評価

岸本, 聡

Influence of superposition of combined static tension and torsion loading on in-phase combined axial and torsional fatigue life was investigated. Based on the analysis of the cyclic and static stresses acting on the maximum shear planes, fatigue life evaluation model for a shear dominated aterials was proposed. To confirm the validity of this model, fatigue tests were performed. Comparison of predicted life with actual life shows a good correlation. Key Words: Mean stress, Combined loading , Fatigue life, Maximum shear plane, Push-pull, Torsion

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