L.104.23230 Technical aspects of crack initiation and fracture

Instructors: Prof. Mirko Schaper

Event type: Lecture

Org-unit: Maschinenbau

Displayed in timetable as: TARB

Hours per week: 2

Language of instruction: German

Min. | Max. participants: - | -

Requirements and recommendations:
lectures "Materials Science for Mechanical Engineers 1 and 2"

Aim of the event:
Service life of a great many actual components is governed by damage due
to cyclic loading effects. Therefore, knowledge of cyclic stress-strain
response and the resulting evolution of fatigue damage is paramount to
efficient and safe design.
In this class, the mechanisms that cause fatigue failure will be addressed
first. Next, the problem of using data generated in the laboratory in
order to predict service life of actual components will be discussed.
Finally, various failure cases will be a studied.

Target group:
Junior and senior students who want to deepen their knowledge in materials science.

Contents:
- Definition of Terms
- Experimental Methods
- Cyclic Stress-Strain Behavior of Ductile Solids
- Crack Nucleation
- Cyclic Crack Growth
- Life prediction Methods
- Desing Concepts
- Crack Closure
- Fatigue Behavior of Non-Metals
- Case Studies.

Contact person:
Prof. Dr.-Ing. H.J. Maier

Literature:
H.-J. Christ: Ermüdungsverhalten metallischer Werkstoffe, Werkstoff-Informationsgesellschaft mbH, Frankfurt, 1998

S. Suresh: Fatigue of materials, Cambridge University Press, 1991

Supplementary events:
See list of courses intended for those who plan to specialize in the field of "Advanced Metallic Engineering Materials"