MEchanics GAthering –MEGA- Seminar: Analyzing and interpreting buckling problems with dynamical system theory
Abstract:
Structure buckling is enormously sensitive to imperfections, so that predictions of buckling loads based on linear stability analysis are usually overestimated. Reconsidering buckling problems within the framework of dynamical system theory, a basin of attraction is defined for the unbuckled state while all the states outside the basin boundary will finally evolve into the buckled state. By analyzing the behavior of one structure under finite-amplitude perturbations, we are able to gain insights into its basin of attraction, then predict its buckling load nondestructively. Relevant research on arc buckling problems is demonstrated in this presentation, which will be extended to shells as the next step.
Biography:
Tian obtained his bachelor and master degrees in Aeronautics from Beihang University. In 2021, he joined the ECPS lab in EPFL as a PhD student under the supervision of Prof. Tobias Schneider. Currently, Tian is devoted to studying structure buckling problems with the knowledge of dynamical system.
Structure buckling is enormously sensitive to imperfections, so that predictions of buckling loads based on linear stability analysis are usually overestimated. Reconsidering buckling problems within the framework of dynamical system theory, a basin of attraction is defined for the unbuckled state while all the states outside the basin boundary will finally evolve into the buckled state. By analyzing the behavior of one structure under finite-amplitude perturbations, we are able to gain insights into its basin of attraction, then predict its buckling load nondestructively. Relevant research on arc buckling problems is demonstrated in this presentation, which will be extended to shells as the next step.
Biography:
Tian obtained his bachelor and master degrees in Aeronautics from Beihang University. In 2021, he joined the ECPS lab in EPFL as a PhD student under the supervision of Prof. Tobias Schneider. Currently, Tian is devoted to studying structure buckling problems with the knowledge of dynamical system.
Practical information
- General public
- Free
Organizer
- MEGA.Seminar Organizing Committee