Fracture Mechanics and Fatique





Offered by

Mechanical Engineering




Knowledge of mechanics of materials and the metallurgy of steels is required. Furthermore, basic knowledge of the Finite Element Method is required.

These requirements are covered in the courses; ME-MEC2, ME-MTR1 and ME-FEM1.

Main purpose

To give the students a basic knowledge about Fracture Mechanics and fatigue in metallic structures as well as its theory and applications


Gain knowledge about the crack opening mechanisms in metallic materials. How the mechanism of crack propagation occurs as well as how fracture mechanics and fatigue is related.


After the course, the student will be able to,

* Apply fracture mechanics methods to real life cracked parts in order to define the expected lifetime for the given specimen.

* Calculate expected lifetime for new parts as well as being able to asses’ designs, evaluate them with respect to fatigue, and fracture mechanics.


The student will be able to evaluate already cracked specimens and define the expected remaining lifetime for the given part. Furthermore, the student can act as part of a surveyor team that investigates broken ma-chinery due to dynamic loading and describe the circumstances that lead to the failure. After the course, the student can use the knowledge and acquired skills in projects involving dynamical moving parts to calculate dimensions and specify designs.


Teaching methods and study activities

4 lessons per week for 12 weeks.
Expected workload for students is 138 hours.
The teaching style is composed of classroom lectures combined with exercises in class. The exercises in class as well as homework is conducted as group work.
Study activity model
Category 1, Initiated by the lecturer with the participation of lecturer and students: 32 hours – 23%
Category 2: Initiated by lecturer with participation of students: 76 hours – 55 %
Category 3: Initiated by students with participation of students: 30 hours – 22 %
Category 4: Initiated by students with the participation of lecturer and students: 0 hours – 0%


Required: Fuchs, H.O. and R.I. Stephens, "Metal Fatigue in Engineering", John Wiley & Sons,1980. Latest edition.



Requirements for attending examination:

Type of examination:
Individual oral examination based upon a subject found by draw.
Exam time: 20 minutes
No preparation
Examinations account for  100 % of final grade
Internal censor.

Allowed tools:

As ordinary 

Grading criteria

7-point scale

Additional information



Jon Svenninggaard

Valid from

2/1/2019 12:00:00 AM

Course type

Mechanical Engineering Classic