Fatigue Crack Growth Markers to Aid Quantitative Fractography
Simon A. Barter,
Russell J.H. Wanhill
Abstract:This article discusses several examples of fatigue load histories that intentionally create artificial fracture-surface markings during testing such that they are measurable by post-test quantitative fractography (QF). It reviews a number of methods for providing fatigue fracture-surface markers to aid QF of fatigue crack growth (FCG). These methods are based on load changes, including reordering the basic load histories and/or adding loads to them. The article also provides some guidelines for obtaining recog… Show more
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