So-called ‘local approach’ methods for fracture analyses, such as the commonly used Beremin model, are attractive as a means to predict component failure due to their flexibility and applicability to a wide range of geometries. However, in cases where cyclic loading occurs, resulting in the accumulation of plastic strain and accompanying residual stress, the validity of the Beremin approach is questionable. This work investigates the applicability of a range of alternative local approach methods to model material failure behaviour in such cases, as well as commenting on the calibration and physical basis of such methods.
Volume Subject Area:
Materials and Fabrication
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