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Multiaxial Fatigue Damage Models

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Abstract:

Two multiaxial damage parameters are proposed in this paper. The proposed fatigue damage parameters do not include any weight constants, which can be used under either multiaxial proportional loading or non-proportional loading. On the basis of the research on the critical plane approach for the tension-torsion thin tubular multiaxial fatigue specimens, two multiaxial fatigue damage models are proposed by combining the maximum shear strain and the normal strain excursion between adjacent turning points of the maximum shear strain on the critical plane. The proposed multiaxial fatigue damage models are used to predict the fatigue lives of the tension-torsion thin tube, and the results show that a good agreement is demonstrated with experimental data.

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Info:

Periodical:

Key Engineering Materials (Volumes 324-325)

Pages:

747-750

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.324-325.747

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Cite this paper

Online since:

November 2006

Authors:

De Guang Shang, Guo Qin Sun, Jing Deng, Chu Liang Yan

Keywords:

Critical Plane Approach, Life Prediction, Multiaxial Fatigue, Shear Damage

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© 2006 Trans Tech Publications Ltd. All Rights Reserved

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References

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DOI: 10.1115/imece1998-1143

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