Surface crack and cracks networks in biaxial fatigue

Abstract : Semi-elliptical fatigue crack growth in 304 L stainless steel, under biaxial loading, was investigated. Compared to those of through-cracks under uniaxial loading, the growth rate of surface cracks is increased by a non-singular compressive stress and reduced by a tensile stress, when R = 0. Plasticity-induced crack closure under biaxial loading was investigated through 3D finite element simulations with node release. Roughness and phase-transformation-induced closure effects were also discussed. The interactions in two-directional crack networks under biaxial tension were investigated numerically. It appears that the presence of orthogonal cracks should not be ignored. The beneficial influence of interaction-induced mode-mixities was highlighted.
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Contributor : Véronique Doquet <>
Submitted on : Thursday, June 21, 2018 - 11:33:01 AM
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A. Kane, Véronique Doquet. Surface crack and cracks networks in biaxial fatigue. Engineering Fracture Mechanics, Elsevier, 2006, 73 (2), pp.233 - 251. ⟨10.1016/j.engfracmech.2005.05.009⟩. ⟨hal-01820099⟩



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