On the evaluation of fracture fatigue entropy

Document Type

Article

Publication Date

8-1-2018

Abstract

Fatigue is an irreversible degradation process wherein entropy increases until its accumulation reaches a critical failure value referred to as the fracture fatigue entropy (FFE). An experimentally-verified analytical approach for determining the entropy generation is presented that illustrates how the concept of FFE can be applied to analyze both low- and high-cycle fatigue. It is shown that the analysis should properly consider the contribution of internal friction, which does not contribute to the fatigue fracture. This parameter plays a significant role in high-cycle fatigue.

Publication Source (Journal or Book title)

Theoretical and Applied Fracture Mechanics

First Page

351

Last Page

361

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