30h Th, 10h Pr, 75h Proj.
Nombre de crédits
Langue(s) de l'unité d'enseignement
Organisation et évaluation
Enseignement au premier quadrimestre, examen en janvier
Unités d'enseignement prérequises et corequises
Les unités prérequises ou corequises sont présentées au sein de chaque programme
Contenus de l'unité d'enseignement
The class presents the basis of fracture mechanics. Failure of structures is explained by studying the physic of materials. This behavior is then modeled analytically. Finally numerical methods applied in fracture mechanics are presented.
Subjects covered by the lectures are
- Linear elastic fracture mechanics (LEFM)
- Non-linear fracture mechanics (NLFM)
- Design approaches
- Recent numerical approaches
Acquis d'apprentissage (objectifs d'apprentissage) de l'unité d'enseignement
Through a deep understanding of the theory and the realization of a project, the student will be able to apply numerical tools to design structures and study crack propagation problems. In particular:
- He will have a deep understanding of fracture mechanics theories and will be able to summary, compare and explain them.
- He will have a deep understanding of the resolution methods of fracture mechanics problems, and will be able to summary, compare and explain them. He will also know their application range.
- He will be able to apply the resolution methods to classical problems of fracture mechanics.
- He will be able to analyse and to evaluate (justify and criticise) these methods.
- He will be able to analyse new problems.
Savoirs et compétences prérequis
Good knowledge in
- Solid mechanics
- Finite-element method
Activités d'apprentissage prévues et méthodes d'enseignement
Exercises and personal project.
Mode d'enseignement (présentiel ; enseignement à distance)
Lectures recommandées ou obligatoires et notes de cours
- Lecture Notes on Fracture Mechanics, Alan T. Zehnder, Lecture Notes in Applied and Computational Mechanics, Volume 62 2012, Springer
- Fracture Mechanics: Fundamentals and applications, D. T. Anderson. CRC press, 1991.
- Lecture notes on http://www.ltas-cm3.ulg.ac.be/classes.htm
Modalités d'évaluation et critères
Evaluation is based on the realization of a project (30%) related to the use / development of numerical methods specific to fracture mechanics and on an written examination (70%). In order to obtain a grade larger or equal to 8/20, grades of at least 8/20 should have been secured for the both the project and written examination parts separately. If one of the two parts has been granted with a grade lower than 8/20, this grade will be used as a final grade. In case of a resit, if a grade of at least 10/20 has been given to the project, only the written examination will be redone. The previous rule of securing 8/20 grades for both parts separately will still hold.
The examination is based on the whole content of the class. Problems similar to the ones studied during the classes, and new problems will be part of the questions. Justification using the theoretical content is also asked.
Participation to the exam, to the guest lectures, and achievement of the project are mandatory. The student who does not attend to compulsory sessions or who does not delivered the assignments on time will not be allowed to present the exam.
L. Noels (L.Noels@ulg.ac.be)