A Refined S-N Curve Model

Ibrahim BURHAN, Ho Sung KIM, Sabu THOMAS

Abstract


An S-N curve is essential not only for describing fatigue results from tests for un-notched specimens but also for theorization of fatigue life predictions for real situation applications. The fatigue life predictions associated with fatigue damage cannot be adequately conducted without an S-N curve model. In this paper, criteria for evaluating S-N curve models are suggested, and an S-N curve model previously proposed by Kim and Zhang (2001) was accordingly refined with damage concept for various stress ratios. A practical method for finding model parameters is presented with examples.

Keywords


S-N Curve, Fatigue, Un-Notched, Damage


DOI
10.12783/dteees/seeie2016/4655

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