The reality of the concept of fatigue damage in multiple step amplitude loadings: Reason for unsuccessful results of existing damage counting models
Source abstract
Abstract
Abstract To date the term “Fatigue Damage” has had an ambiguous usage in the fatigue community. This paper explains the reason for the poor predictive results of existing fatigue damage rules, such as Miner’s rule, through precise observation of small crack growth during multiple step loadings. For the exact evaluation of fatigue damage it is crucially important to attend to the phenomenon of the continuous decrease in the fatigue limit with crack growth until final failure. It is stress amplitudes above the fatigue limit for a given crack size that contribute to fatigue damage.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Fatigue and fracture mechanics · Material Properties and Failure Mechanisms · Numerical methods in engineering
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