Fracture of Materials

Uitgebreide vaknaam	Fracture of Materials
Leerdoelen	At the end of the course, the student is able to: 1) explain and characterize brittle fracture in terms of critical stress intensity factors as well as energy release rates 2) explain and characterize elastic-plastic fracture in terms of crack-tip opening displacement and J-integral 3) describe the key phenomenology of dynamic fracture and fatigue 4) explain and characterize the influence of environmental conditions on fracture
Omschrijving	This course deals with an introduction to the materials science of fracture, the fundamental concepts behind fracture mechanics and provides an introduction in the application of fracture mechanics. Departing from knowledge in solid mechanics, the course will start with linear elastic fracture mechanics, offering both the stress-intensity and the energy-release viewpoint. Along with an expansion from purely brittle fracture towards mechanisms of ductile fracture in metals, the concept of a crack-tip plastic zone is introduced and then extended in terms of the J-integral. Next to the foundations of fracture toughness and the associated toughening mechanisms, the course will also consider the most important experimental methods. While the emphasis is on quasi-static crack growth, dynamic fracture as well as fatigue are addressed briefly. The course concludes with addressing the influence of environmental conditions, in particular of hydrogen, on fracture.
Uren per week
Onderwijsvorm	Hoorcollege (LC), Opdracht (ASM), Werkcollege (T) (32 LC, T 16, ASM 32, self study 60)
Toetsvorm	Mondeling tentamen (OR), Opdracht (AST), Schriftelijk tentamen (WE) (AST 20%, WE 50%, OR 30%)
Vaksoort	master
Coördinator	prof. dr. ir. E. van der Giessen
Docent(en)	F. Maresca, PhD. ,prof. dr. ir. E. van der Giessen
Entreevoorwaarden	The course assumes that the student has the knowledge and comprehension of the main concepts related to small strain continuum (solid) mechanics and the linear finite element method. Master students in Mechanical Engineering should have attended the course Computational Mechanics.
Opmerkingen	All modes of assessment are graded on a scale from 1 to 10. Both the written exam (WE) and the oral exam (OE) need to have grades >5.5 in order to pass. The final grade is computed as the weighted sum 0.5*WE+0.3*OE+0.2*AST, and the final mark is rounded to the nearest multiple of 0.5 (except marks < 5.5, which are rounded to 5, and marks > 5.5 which are rounded to 6).
Opgenomen in	Opleiding Jaar Periode Type MSc Mechanical Engineering: Materials for Mechanical Engineering  (Electives ) 1 semester II a keuze