Bachelor’s thesis or Master’s thesis
Fatigue strength analyses are of great importance in the mechanical engineering sector in order to guarantee the durability of components. However, determining fatigue strength using the Wöhler method is very time-consuming and resource-intensive. The load increase method is a cost- and time-saving alternative. In the load increase method, the dynamic pulsating load is successively increased and a critical point is determined from which conclusions can be drawn about the fatigue strength behavior of the material. However, not all materials are equally suitable for this process, as previous studies have shown. The task here is to classify when a material is suitable for this analysis method.
© [Imago, Cover-Images]The work is written in this working group:
The thesis is written in the dynamic testing department at the Center for Plastics Analysis and Testing (KAP) of the Institute of Plastics Processing. In dynamic testing, a large number of fatigue or crash tests are carried out as part of industrial projects and internal research at the institute in order to analyse the dynamic material properties of plastics.
Objective:
The aim of this work is to analyse which properties a plastic must fulfill in order to be able to determine suitable fatigue strength values using the load increase method. Different manufacturing processes should also be compared in a Master’s thesis.
| For a Bachelor's thesis you will work on the following tasks | For a Master's thesis you will work on the following tasks |
| Performance of quasi-static tensile tests on at least two plastics | Performance of quasi-static tensile tests on at least two plastics with different processing methods (e.g. additive manufacturing vs. injection moulding) |
| Subsequent performance of load increase tests on these materials | Subsequent performance of load increase tests on these materials |
| Analysis of the generated results and classification in relation to previous research work | Analysis of the generated results and classification in relation to previous research work |
Your profile:
- You are studying in a technical or scientific field such as mechanical engineering, industrial engineering, materials science, environmental engineering or similar
- You are interested in helping to shape forward-looking topics in materials science
- Ideally, you already have practical experience with static or dynamic material tests
- Interest in working independently in a motivated team
If you are interested in writing your thesis at IKV and in this task, please apply.