Fatigue Crack Initiation and Propagation
Chapitre d'ouvrage scientifique
Résumé
The resistance of metal alloys to fatigue can be classified into four major regimes: low-cycle fatigue (or short life), limited resistance (between 10^5 and 10^6 cycles), high-cycle fatigue (between 10^6 and 10^7 cycles) and gigacycle (more than 10^7 cycles). This chapter introduces the basic concepts of cyclic mechanical behavior, crack initiation and propagation in these different regimes.
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Article dans une revue avec comité de lectureSEDDIK, Raoudha; RONDEPIERRE, Alexandre; PRABHAKARAN, Subramaniyan; MORIN, Léo; FAVIER, Véronique; PALIN-LUC, Thierry; BERTHE, Laurent (Elsevier, 2021)A method coupling experiments and simulations, is developed to characterize the yield stress and strain hardening of several metals loaded at 10⁶ s−ⁱ and < 25 ns, typically involved during Laser Shock Peening. It was applied ...
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Article dans une revue avec comité de lectureAn analysis of high cycle multiaxial fatigue behaviour is conducted through the numerical simulation of polycrystalline aggregates using the finite element method. The metallic material chosen for investigation is pure ...
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BrevetL'invention porte sur un dispositif d'essai de fatigue d'une éprouvette comprenant un châssis pourvu d'au moins une matrice de réception de l'éprouvette. Le dispositif d'essai de fatigue comprend un système de délivrance ...
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Direction d'ouvrageCARPINTERI, Andrea; ITOH, Takamoto; PALIN-LUC, Thierry; SAKANE, Masao; SUSMEL, Luca (Elsevier, 2014)This Special Issue of the International Journal of Fatigue contains selected papers presented at the International Conference on Multiaxial Fatigue and Fracture held in Kyoto, Japan, on 3–6 June 2013. The selected papers ...
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Article dans une revue avec comité de lectureThis paper discusses features of fatigue crack initiation and growth in an extruded and forged VT3-1 titanium alloy loaded in pure torsion in the gigacycle regime. Torsion fatigue tests were performed at 20 kHz up to a ...