Effects of inclusion size and stress ratio on fatigue strength for high-strength steels with fish-eye mode failure
Source abstract
Abstract
Experimental results indicate that the fatigue life reduces by about two orders of magnitude when inclusion size doubles. Then, a model is proposed for predicting the fatigue strength of high-strength steels with fish-eye mode failure based on the experimental results for the effect of inclusion size and stress ratio. In the model, the effect of inclusion size a 0 and stress ratio R on fatigue strength s a is expressed as s a proportional to s a n p n a 0 m [(1nmn R )/2] a , wherenm and a are material parameters. The predicted results are in good agreement with our experimental results and the ones reported in literature.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Fatigue and fracture mechanics · Fire effects on concrete materials · Structural Load-Bearing Analysis
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