Experimental investigation of the effect
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Mitsuhiro Okayasu; Zhirui Wang
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Article
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2007
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Elsevier Science
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English
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To better understand the effect of asperity on the crack closure and fatigue crack growth behavior, the load-CMOD relations and crack propagation rate were examined through the addition of artificial wedges into pre-cracks. Experimental results revealed that the unloading phase of the load vs. CMOD