|
Lecturer(s)
|
-
Klejch Filip, Ing. Ph.D.
-
Schmidová Eva, prof. Ing. Ph.D.
|
|
Course content
|
1. Failure modes and failure mechanisms - an overview 2. Strengthening vs. softening processes of crystalline materials 3. Fracture behaviour of the technical materials, fracture mechanism principles. 4. Response of materials to dynamic loading, influence of strain-rate 5. Advanced high-strength steels, principles of increased energy consumption to failure 6. Evaluation of materials according to fracture mechanics parameters 7. Methods of structural analysis, fundamentals of fractography 8. Metallurgical quality of the technical materials, influence on the operational behaviour. Cast imperfections - their indication and elimination. 9. Influence of hydrogen on weldability and fracture behaviour of steels 10. Contact-fatigue processes, ratcheting 11. Stainless steels and heat-resisting steels. 12. Weldable steels with improved yield strength, stength and structural instability failure cases 13. Spring steels and steels for rolling bearings
|
|
Learning activities and teaching methods
|
Monologic (reading, lecture, briefing)
- Contact teaching
- 40 hours per semester
- Practical training
- 40 hours per semester
- Preparation for a credit (assessment)
- 20 hours per semester
- Preparation for an exam
- 30 hours per semester
- Preparation for laboratory work and processing of results
- 20 hours per semester
|
|
Learning outcomes
|
The aim is to introduce students to the specific failure mechanisms of materials in the context of rolling stock construction, including the contact fatigue failure at the wheel-rail interface
Students will be able to assess the different degradation processes in particular operational conditions in railway applications. He will get the skills to define suitable material analyses regarding the material response under defined conditions and to process the results such as analyses towards the solution of problems in the field of material engineering.
|
|
Prerequisites
|
The basic knowledge of materials science (internal structure and phase of steels, phase transformations in steels and cast iron, mechanical properties of steels)
|
|
Assessment methods and criteria
|
Oral examination
The basic knowledge of materials science (internal structure and phase of steels, phase transformations in steels and cast iron, mechanical properties of steels)
|
|
Recommended literature
|
-
Pineau, A., Pardoen, T. Failure mechanisms of metals. 2007.
|