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Effect of Residual Stresses Induced by Cold Expansion on the Crack Growth in 6082 Aluminum Alloy

type de publication      article dans une revue internationale avec comité de lecture
date de publication 2013
auteur(s) Semari Zahar; Aïd Abdelkrim; Benhamena Ali; Amrouche Abdelwaheb; Benguediab Mohamed; Sadok A.; Benseddiq Noureddine
journal (abréviation) Engineering Fracture Mechanics (Eng Fract Mech)
volume (numéro) 99
pages 159 – 168
résumé Fatigue crack growth from an expanded hole is simulated. Expansion and its degree influence are studied using a numerical analysis. Stress intensity factors are determined and used to estimate the fatigue life. Residual stress field is evaluated using a nonlinear analysis. These stresses are superposed with the applied stresses field in order to estimate crack growth with a linear 3-D model.
Experimental test are conducted under constant loading. Results of this investigation indicate expansion and its degree are benefit on fatigue life. A good agreement was observed between the FEM analysis and the experimental result.
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