LIGAMENT MODEL FOR CORROSION FATIGUE CRACK PROPAGATION

J Chin Soc Corr Pro

1996, Vol. 16

Issue (3): 161-169 DOI:

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LIGAMENT MODEL FOR CORROSION FATIGUE CRACK PROPAGATION

WANG Zheng; WANG Zhiqi (Zhengzhou Institute of Technology)(Beijing University of Science and Technology)

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Abstract The crack growth rates of fatigue, stress corrosion and corrosion fatigue for 4340, 15 and A508 steels under various conditions were determined. A ligament model and computer program for corrosion fatigue crack propagation were presented after comparing the experimental results with predicted data from Linear Summation Model or Process Competition Model. The results showed that this simple model could predict curves of da/dN ～△K in reasonable agreement with measured data. The simplicity and convenience of this model are much helpful for engineering application.

Key words: Corrosion fatigue Crack growth rate Ligament model

Received: 25 June 1996

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WANG Zheng; WANG Zhiqi (Zhengzhou Institute of Technology)(Beijing University of Science and Technology). LIGAMENT MODEL FOR CORROSION FATIGUE CRACK PROPAGATION. J Chin Soc Corr Pro, 1996, 16(3): 161-169.

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https://www.jcscp.org/EN/ OR https://www.jcscp.org/EN/Y1996/V16/I3/161

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