Bachelor’s thesis or master’s thesis
© Abaqus_basicTopic of the work:
Thermosetting plastics are typically shaped into their final component geometry during curing. However, partially cross-linked epoxy resins can be plastically deformed within a suitable temperature and cross-linking range. To model this process numerically, the nonlinear material behavior must be taken into account in a simulation.
The work is related to this research project:
The “EPForm” research project is investigating how partially cross-linked thermosets and fiber-reinforced composites can be thermally formed after the fact. Experimental data and initial modeling approaches are available to describe the material’s behavior. Building on this, a User Material Subroutine (UMAT) will be developed for Abaqus and used to simulate a forming process.
Objective:
Development of a UMAT for Abaqus and creation of a simulation model to describe the hot forming of partially cross-linked thermosets.
Your task:
| For a bachelor's thesis, you will work on the following topics: | For a master's thesis, you will work on the following topics: |
| Familiarization with the topic of hot forming of partially cross-linked thermosets, as well as with Abaqus and UMATs | Familiarization with the topic of hot forming of partially cross-linked thermosets, as well as with Abaqus and UMATs |
| Implementation of a simplified material model in a UMAT based on provided model approaches | Selection and further development of a suitable model approach for nonlinear material behavior |
| Development of an initial simulation model for the forming of rod-shaped test specimens | Implementation and parameterization of a UMAT model, taking into account relevant factors such as temperature, strain rate, and cross-linking state |
| Conducting and Evaluating Selected Simulation Calculations | Developing a Simulation Model for the Forming of Rod-Shaped Test Specimens |
| Validation of Selected Simulation Results Using Experimental Forming Tests |
Your profile:
- A degree in engineering or the natural sciences from RWTH or a university of applied sciences (e.g., mechanical engineering, industrial engineering, …)
- Initial experience with simulation software such as Abaqus
- Motivated, careful and independent way of working
- Affinity for technology, creativity and willingness to learn