Abstract
This paper extends a recently developed probabilistic mesomechaniccs based model for fatigue notch factor to titanium alloy components. The notch size effects and notch root and inelastic behaviour are combined with probability distributions of microscale stress-strain gradient and small crack initiation to inform minimum life design methods. The fatigue notch factors predicted using the new model are in good agreements with the experimental results for the notched titanium alloy specimens.
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