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This paper presents a fatigue damage model for crack propagation in characterizing the fatigue crack growth behavior of cracked structures. Special emphasis is placed on the numerical simulation of cyclic loading and the dependence of the numerical results on the finite element mesh discretization. A practical method for predicting fatigue crack propagation in engineering structures is proposed. The predicted results are compared favorably with those measured experimentally from fatigue testing a center cracked panel of 2024-T3(Alclad) aluminum plates.
damage mechanics, fatigue, crack propagation, aluminum alloy, finite element analysis
University of Michigan-Dearborn, Dearborn, MI
Pacific Technique Development Co. Ltd., Moscow,