2MAF2 | Fracture of materials | Materials and Mechanics - Apprenticeship | S8 | ||||||
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Lessons : 15 h | TD : 15 h | TP : 15 h | Project : 0 h | Total : 45 h | |||||
Co-ordinator : Gael Marnier |
Prerequisite | |
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1MAC - 1 MAF - 2MAB - 2MAC | |
Course Objectives | |
Understand and identify the mechanisms responsible for materials fracture(lessons will mainly focus on metallic materials) in order to be able to size a structure or make a wise material choice for speficic applications. | |
Syllabus | |
22 h : Mechanical fracture mechanisms and failure criteria - Brittle fracture (Linear elastic fracture mechanics, Fracture toughness, Griffith theory) - Ductile fracture (rupture criteria) - Fatigue fracture - Microscopic aspects of fracture - Environmentally assisted cracking 11h : Probabilistic approach of failure applied to structure reliability |
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Practical work (TD or TP) | |
Experimental work : - Identification of ductile-to-brittle temperature transition of a steel thanks to Charpy impact tests. - Influence of the stress triaxility ratio over the ductility of metallic materials and study of the Johnson Cook criterion. - Fibre-reinforced polymers: influence of the composite microstructure over damage development and mechanical failure - Acquisition of a forming limit curve: a failure criterion used to control material forming processes. |
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Acquired skills | |
Estimation of fatigue life, calculation of strutural failure probabilities and prediction of forming limits. | |
Bibliography | |
Non renseigné |
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