Abstract
This investigation deals with the steady propagation of a fatigue crack in a thin plate, subjected to cyclic tensile remote loading. The problem is analyzed according to a Dugdale model of the fracture process zone. Material stretches periodically in the fracture process zone prior to its failure. The effect of crack closure is considered in the analysis. Unlike previous work, our study is based on a constitutive relation of the linear work-hardening for material in the fracture process zone. The criterion of total accumulative plastic work is adopted for determination of the growth rate of the fatigue crack. Theoretical results thus obtained are compared with experimental data.
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