INITIAL SITUATION
* A significant proportion of the door leaves produced by IFE are designed as bonded constructions. Two cover sheets made of aluminum are glued onto the profile frame and the sandwich core.
* According to the DIN 6701 bonding standard, a mathematical proof of strength is required for safety-relevant bondings, although the thin-layer adhesives used in cover sheet bonding are difficult to describe in terms of calculation. There is still no regulation or guideline on this.
* In order to be prepared for future optimization tasks and for possible changes in the interpretation of the standard, a calculation method for describing door leaf bonding should be found.
* In a preliminary work, the CZM (Cohesive Zone Modeling) method was already considered in more detail and the necessary parameters of the adhesive used at IFE were determined.
TASKS
* Analysis of a simple door leaf and estimation of the critical bonding areas
* Define simple specimens with which a loading situation analogous to the critical door leaf areas can be generated.
* FE calculation of these specific specimens
* Performing or supervising measurements to determine the load limits of the specimens
* Comparing the FE results with the values of the measurements
* Documenting and interpreting the results
Requirements
* Studies at a technical university or university of applied sciences
* Basic knowledge of FEM (Finite Element Method) and fracture mechanics
* Initiative
* Solution-oriented way of working
The collective agreement minimum salary for this position is EUR 2.057,00 gross per month on a full-time basis. #J-18808-Ljbffr