Concept of Fatigue for Determining Characteristics of Materials with Strengthening

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The paper presents the concept of division of the total strain amplitudes. Simulations were performed for high-alloy steel X6NiCr3220 for proposing a new curve of cyclic strain based on the best fit to the experimental points and plotted the hysteresis loop. Proposed allocation of the total strain amplitude in three parts: the plastic strain amplitude, strain amplitude and the amplitude of the linearly elastic strain coupled. In order to preserve the forms of popular formula Ramberg-Osgoda and Manson-Coffin-Basquin modified them in such a way that added to their member responsible for the description of the coupled strain. Inclusion of additional term leading to closer representation of the actual material properties.

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Edited by:

Dariusz Skibicki

Pages:

43-48

DOI:

10.4028/www.scientific.net/MSF.726.43

Citation:

E. Marcisz et al., "Concept of Fatigue for Determining Characteristics of Materials with Strengthening", Materials Science Forum, Vol. 726, pp. 43-48, 2012

Online since:

August 2012

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