Course content

I) INTRODUCTION Overview and aims of the course. Computational fracture mechanics software. Brief presentations of research projects.
II) BRITTLE FRACTURE Mechanisms and metallographic examinations. Constraint definitions and the development of the T and Q theories. Local approach and Weibull statistics. Mismatch and the development of the JQM approach.
III) DUCTILE FRACTURE Mechanisms and metallographic examinations. Analytical approaches and the classical Gurson model. Historical development in modelling of ductile fracture. Cell model approach and the Gurson model for tensile tests. Complete Gurson model for cracked specimens.
IV) BRITTLE/DUCTILE Mechanisms and challenges. Effect of limited ductile crack growth on the local stress -strain fields and the risk of brittle fracture.

Learning outcome

Introduce procedures for modelling of brittle and ductile fracture in metals.

Learning methods and activities

Lecturers, group work, seminars, calculations on computers. The course is given in english.

Compulsory assignments

• Exercises

Recommended previous knowledge

General (Ms.Sci) siv.ing. degree. Some basic background from materials technology and fracture mechanics are required.

Course materials

The curriculum is covered by selected journal papers.

Credit reductions