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Analysis of Fatigue Life and Influence Factors of Tubing with Initial Crack

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Abstract:

Three-dimensional stresses are analyzed in the tubing working based on the theory of thick-walled cylinder, and the stress intensity factor expression is derived on longitudinal and circumferential extending cracks in the tubing. Tubing fatigue life is calculated according to given condition through the preparation of the corresponding program. Influence of initial crack length, change of the pressure and the tubing wall thickness on the fatigue life are discussed.

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Periodical:

Advanced Materials Research (Volumes 690-693)

Pages:

1806-1809

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.690-693.1806

Citation:

Cite this paper

Online since:

May 2013

Authors:

Yin Ping Cao, Yi Hua Dou

Keywords:

Fatigue Life, Impact Factor, Initial Crack, Tubing

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© 2013 Trans Tech Publications Ltd. All Rights Reserved

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