Effects of Thickness on Plasticity-Induced Fatigue Crack Closure: Analysis and Experiment

C Hsu; KK Chan; J Yu

doi:10.1520/STP15763S

SYMPOSIA PAPER Published: 01 January 1999

STP15763S

Effects of Thickness on Plasticity-Induced Fatigue Crack Closure: Analysis and Experiment

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The crack-opening stress was measured using a strain gage technique on 7050 aluminum alloy, under constant amplitude and repeated overload. The behavior of crack-opening stress predicted by Newman's FASTRAN-II is consistent with the experimental results for repeated overload. It is also found that the FASTRAN-II program is capable of predicting crack growth on the 7050-T76 aluminum plate and 7050-T7452 aluminum hand forging under complex simulated flight loading which contains a significant number of compression cycles.

Author Information

Hsu, C

The Boeing Company, Long Beach, CA

Chan, KK

The Boeing Company, Long Beach, CA

Yu, J

The Boeing Company, Long Beach, CA

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Details

Developed by Committee: E08

Pages: 285–303

DOI: 10.1520/STP15763S

ISBN-EB: 978-0-8031-5397-4

ISBN-13: 978-0-8031-2611-4

Effects of Thickness on Plasticity-Induced Fatigue Crack Closure: Analysis and Experiment

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