Course syllabus

Brottmekanik, fortsättningskurs
Fracture Mechanics, Advanced Course

FHLN25, 7,5 credits, A (Second Cycle)

Valid for: 2020/21
Decided by: PLED M
Date of Decision: 2020-03-26

General Information

Elective for: BME4, F4, M4-bem, Pi4
Language of instruction: The course will be given in English


The purpose of the education is to provide the need for fracture mechanical competence to judge risk for failure and to compute stiffness reductions due to cracks. The aim is that the student should gain knowledge of linear and non-linear fracture mechanics and to serve as an industrial resource with the ability to analyze failures, suggest models for calculation and suggest structural improvement of engineering structures.

Learning outcomes

Knowledge and understanding
For a passing grade the student must

Competences and skills
For a passing grade the student must

Judgement and approach
For a passing grade the student must


Crack tip solutions, displacements of fracture surfaces. Stress and strain fields and path-independent integrals. Basic tensor algebra. Concepts of dissipated energy, stiffness reduction and compliance methods. Materials testing, test specimens for fracture mechanical testing. Limits of linear fracture mechanics, stress intensity factors and fracture toughness. Fatigue, Paris' law, non-linear fracture mechanical concepts.

Computational Fracture Mechanics, e.g. calculation of stress intensity factors, J-integral and crack driving forces within the finite element framework in linear and nonlinear fracture mechanics; modern finite element methods for crack propagation.

Examination details

Grading scale: TH - (U,3,4,5) - (Fail, Three, Four, Five)
Assessment: Written examination. In the case of less than 21 registered students the examination may be given in oral form.

The examiner, in consultation with Disability Support Services, may deviate from the regular form of examination in order to provide a permanently disabled student with a form of examination equivalent to that of a student without a disability.


Assumed prior knowledge: Finite Element Method for Non-linear Systems (FHLN20) and Computational Inelasticity (FHLN05) or equivalent courses.
The number of participants is limited to: No

Reading list

Contact and other information

Course coordinator: Ralf Denzer,
Course homepage: