Low‐cycle fatigue of 316L stainless steel under proportional and nonproportional loadings |
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Authors: | D Jin DJ Tian JH Li M Sakane |
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Affiliation: | 1. School of Energy and Power Engineering, Shenyang University of Chemical Technology, Shenyang, China;2. Department of Mechanical Engineering, Ritsumeikan University, Kusatsu Shiga, Japan |
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Abstract: | This paper discusses low‐cycle fatigue characteristics of 316L stainless steel under proportional and nonproportional loadings. Tension–torsion multiaxial low‐cycle fatigue tests were performed using five strain paths. Additional hardening was observed under nonproportional loadings and was more significant in tests with larger nonproportionality. Mises equivalent strain, Smith–Watson–Topper, Fatemi–Socie, Kandil–Brown–Miller and nonproportional strain parameters were applied to the experimental data to evaluate the multiaxial low‐cycle fatigue damage. The applicability of the damage laws to practical design was discussed. |
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Keywords: | 316L stainless steel additional hardening fatigue life prediction multiaxial fatigue nonproportional loading |
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