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Fatigue crack growth under variable amplitude loadingFatigue crack growth tests were conducted on an Fe 510 E C-Mn steel and a submerged arc welded joint from the same material under constant, variable, and random loading amplitudes. Paris-Erdogan's crack growth rate law was tested for the evaluation of m and C using the stress intensity factor K, the J-integral, the effective stress intensity factor K(sub eff), and the root mean square stress intensity factor K(sub rms) fracture mechanics concepts. The effect of retardation and residual stresses resulting from welding was also considered. It was found that all concepts gave good life predictions in all cases.
Document ID
19950013068
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Sidawi, Jihad A.
(Bahrain Univ. Issa Town, Bahrain)
Date Acquired
September 6, 2013
Publication Date
September 1, 1994
Publication Information
Publication: NASA. Langley Research Center, FAA(NASA International Symposium on Advanced Structural Integrity Methods for Airframe Durability and Damage Tolerance, Part 2
Subject Category
Structural Mechanics
Accession Number
95N19484
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
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