Forschungsprojekte

Ermüdung

  • Global-local thermomechanical analysis of fracture in polycrystalline silicon shells using a phase-field approach.
    Abstract: The existing works in the literature addressing damage events in PV-Modules have different drawbacks and needs for improvements. On the one hand, the lack of a computationally efficient multiscale-based framework to model progressive failure in PSWs is observed. Furthermore, a coupled thermomechanical phase-field modeling framework for shells based on the geometrically nonlinear theory which takes into account the anisotropy effects as well as the presence of residual stresses is not yet available. Thus, the present proposal aims at covering these shortcomings in a unified way and at modeling progressive failure at both the micro- and macroscale by developing a theoretically robust and computationally efficient framework. This project is carried out in a close collaboration with the Institute of Applied Mechanics of the Technische Universität Braunschweig.
    Leitung: Prof. Dr-Ing. habil. Raimund Rolfes
    Team: Muzzamil Tariq, M.Sc.
    Jahr: 2020
    Förderung: DFG, German Research Foundation
    Laufzeit: Muzzamil Tariq, M.Sc.

Strukturen

  • Improved structural performance through the use of random field analysis
    The research performed within this project uses the effect of random variations in structure’s geometry and/or material to get information on local sensitivity of structures to deviations from their baseline value. This information cannot only be useful in quality assurance, by finding areas most sensitive to deviations, but can also be used to improve the design. This approach can load to an increase in structural parameters such as buckling load, fatigue life and others.
    Leitung: Prof. Dr-Ing habil. Raimund Rolfes
    Team: Muzzamil Tariq, M.Sc.
    Jahr: 2019
    Förderung: SE²A excellence, Cluster of DFG
    Laufzeit: 2019-2022