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Fatigue and rupture

616-3 Fatigue and rupture Materials and Chemistry S9
Lessons : 14 h TD : 7 h TP : 0 h Project : 0 h Total : 21 h
Co-ordinator : Sophie Eve
Prerequisite
Basis of mechanics
Course Objectives
Understand the phenomenon of fatigue of materials, i.e. the damage and rupture of structures subjected in use to periodical loadings, such as vibrating, turning, or damping systems, systems subjected to variable loadings or to repeated temperature gradients.
Syllabus
- Reminders on the basis of the rupture mechanics theory
- Notions of fatigue and endurance
- Fatigue damage: initiation and propagation of cracks, initiation threshold, propagation modelisation
- Low cycles fatigue
- Estimation of the lifetime of structures : statistical aspect, cumulative damage, endurance criteria, variable amplitude loadings, damage tolerance
- Fatigue behaviour of some materials : superalloys, polymers, composites
Practical work (TD or TP)
8-hours lecture by Pr. A.M. Korsunsky, Department of Engineering Science, Oxford University (UK), on the "Residual stress in engineering materials and industrial systems: influence, measure and modelisation".
Acquired skills
Initiation to the lifetime of structures under periodical loading. Understanding of the damage and rupture mechanisms of materials due to fatigue.
Bibliography
- J. Lemaître, J.-L. Chaboche : « Mécanique des matériaux solides », Dunod, 1985.
- D. François, A. Pineau, A. Zaoui : « Comportement mécanique des matériaux. Tome 1 : élasticité et plasticité », Hermès, 1992.
- D. François, A. Pineau, A. Zaoui : « Comportement mécanique des matériaux. Tome 2 : viscoplasticité, endommagement, mécanique de la rupture, mécanique du contact », Hermès, 1992.

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