Damage And Failure

Données Générales
Programme Académique	General Engineering Program			Responsable(s) Module : LOURDIN Pierre
Type d'EC : Cours	Damage And Failure (LIIAem08ERupEnd)
TP : 24h00 Cours : 14h00 Travail personnel : 20h00 Durée totale: 58h00	Statut	Periode Semester 8	Langue d'enseignement : French

Objectifs Généraux
1 Being able to size a structural part to avoid brittle, ductile and fatigue fractures. 2 To be able to determine the causes of a failure. 3 To be able to propose technical solutions for optimizing the service life of a structural part.

Contenu
Courses (14h) Failure under static stresses: The brittle and ductile fracture mechanisms are studied for the different families of materials as well as the various influencing parameters. The brittle ductile transition, the toughness, as well as the fracture statistics, complete this part to refine the choices of materials and their dimensioning for the strenght to sudden fracture by crack propagation. Failure under dynamic stresses The mechanisms of fatigue failure in materials, and the bases of pre-dimensioning of parts for dynamic stresses are studied. The course is illustrated with numerous examples and exercises from expertises treated in the laboratory. Practical work (6x4h) In the form of mini projects allowing for a global consideration of the design, choice of materials, analytical and numerical calculations and expertise of parts subjected to dynamic or statics constraints.

Contenu

Courses (14h)
Failure under static stresses:
The brittle and ductile fracture mechanisms are studied for the different families of materials as well as the various influencing parameters. The brittle ductile transition, the toughness, as well as the fracture statistics, complete this part to refine the choices of materials and their dimensioning for the strenght to sudden fracture by crack propagation.
Failure under dynamic stresses
The mechanisms of fatigue failure in materials, and the bases of pre-dimensioning of parts for dynamic stresses are studied.
The course is illustrated with numerous examples and exercises from expertises treated in the laboratory.
Practical work (6x4h)
In the form of mini projects allowing for a global consideration of the design, choice of materials, analytical and numerical calculations and expertise of parts subjected to dynamic or statics constraints.

Prérequis
- Materials strength - solid mechanics - Pratique du calcul des structures - Materials science for engeneers

Bibliographie
Techniques de l’ingénieur BM5044 fatigue des alliages ferreux- Exemples de calcul Jian LU Techniques de l’ingénieur BM5042 fatigue des alliages ferreux- Définition et diagrammes Jian LU Techniques de l’ingénieur M4170 Essais de fatigue- Partie I paul RABBE ; Henri Paul LIEURADE ; André GALTIER Techniques de l’ingénieur BM5043 fatigue des alliages ferreux- Facteurs d’influence Jian LU Endommagements et rupture des matériaux Dominique FRANCOIS EDP Sciences La rupture des matériaux Clément LEMAIGNANT EDP Sciences Guide du dessinateur, Les concentrations de contraintes, Publications CETIM Mécanique de la rupture, D MIANNEY les Editions de Physique Données technologiques sur la fatigue, Publications CETIM Mécanique de la rupture, Publications CETIM Matériaux pour l’ingénieur, A-F. GOURGUES-LORENZON et J-M. HAUDIN, Mines Paris Les Presses Science et génie des matériaux ; William D. Callister,Jr. MODULO 2001 ASM Handbook vol 11 Failure analysis and prevention ASM international

Bibliographie

Techniques de l’ingénieur BM5044 fatigue des alliages ferreux- Exemples de calcul Jian LU
Techniques de l’ingénieur BM5042 fatigue des alliages ferreux- Définition et diagrammes Jian LU
Techniques de l’ingénieur M4170 Essais de fatigue- Partie I paul RABBE ; Henri Paul LIEURADE ; André GALTIER
Techniques de l’ingénieur BM5043 fatigue des alliages ferreux- Facteurs d’influence Jian LU
Endommagements et rupture des matériaux Dominique FRANCOIS EDP Sciences
La rupture des matériaux Clément LEMAIGNANT EDP Sciences
Guide du dessinateur, Les concentrations de contraintes, Publications CETIM
Mécanique de la rupture, D MIANNEY les Editions de Physique
Données technologiques sur la fatigue, Publications CETIM
Mécanique de la rupture, Publications CETIM
Matériaux pour l’ingénieur, A-F. GOURGUES-LORENZON et J-M. HAUDIN, Mines Paris Les Presses
Science et génie des matériaux ; William D. Callister,Jr. MODULO 2001
ASM Handbook vol 11 Failure analysis and prevention ASM international

Évaluation(s)
N°	Nature	Coefficient	Objectifs
1	1, 2, 3	1	Written assignment lasting 2 hours covering all the concepts covered and their applications to concrete cases.
2	1, 2, 3	1	Expertise of parts broken in service, presentation of the approach and results to the group.