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Browsing by Subject "variable amplitude loading"

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    Item type:Article, Access status: Open Access ,
    Calibration of the strip yield model for fatigue crack growth predictions in structural steel
    (Wydawnictwa AGH, 2009) Machniewicz, Tomasz
    The paper is focused on the calibration of the strip yield (Dugdale) model for crack growth predictions for structural steel. This is achieved by imposing appropriate constraints on yielding the strip elements. To avoid a fortuitous, i.e. physically unjustified choice of the constraint factors, a novel concept for their selection is proposed, namely matching the experimentally observed and predicted by the model cyclic stress-strain behaviour at the crack tip. The approach is shown to yield satisfactory prediction results on crack growth under constant amplitude loading and after application of an overload cycle.