Nonproportionally multiaxial cyclic plastic deformation of U75 rail steel: Experiment and modeling
International Journal of Fatigue（2023）
Abstract
•Multiaxial cyclic features and ratcheting behavior of U75V rail steel.•Introducing a new isotropic hardening to capture the multiaxial cyclic features.•Introducing Tanaka’s parameter to describe the multiaxial ratcheting behaviors.•Revealing the effect of non-proportionally additional hardening on the RCF.
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Key words
U75V rail steel,Nonproportionally additional hardening,Cyclic softening/hardening features,Ratcheting behavior,Constitutive model
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