Topology Optimization and applications to extremal material design
Event details
| Date | 28.01.2013 |
| Hour | 14:00 › 15:00 |
| Speaker |
Prof. Ole Sigmund Bio : Ole Sigmund is Professor and Head of the Section for Solid Mechanics, Department of Mechanical Engineering, Technical University of Denmark. He obtained his M.Sc., Ph.D. and Dr. Techn. degrees from the same institution in 1991, 1994 and 2001, respectively. He has been a research assistant at the University of Essen, Germany (1991-1992) and a Post graduate fellow at Princeton Materials Institute, Princeton University (1995-1996). Ole Sigmund has been the PI of a number of larger nationally and internationally funded research projects and he has published more than 110 research papers in peer-reviewed international journals and co-authored the monograph "Topology Optimization - Theory, Methods and Applications", Springer (2004) with Martin P. Bendsøe. His principal research interests are theoretical extensions and applications of topology optimization to the design of extremal and smart materials, compliant mechanisms, MicroElectroMechanical Systems, crashworthiness, fluid systems and wave-propagation problems in acoustic, elastic, nano-optical, electromagnetical and other multiphysical problems. |
| Location | |
| Category | Conferences - Seminars |
Topology optimization is a tool for systematic optimization of structures and materials. The method is based on repeated finite element analyses, gradient computations and math-programming-based material distribution updates. Initialized by Bendsøe and Kikuchi 25 years ago, the method has by now achieved great popularity and is a major tool in mechanical engineering lead by aerospace and automotive industries. The design is parameterized by element based design variables that interpolate between available material constituent phases and various regularization techniques ensure control of minimum feature sizes and connectedness of optimized designs.
The presentation will give an overview of the topology optimization method and discuss recent advances with respect to length scale control and robustness towards manufacturing uncertainties. Special emphasis will be devoted to the use of topology optimization for the design of materials and surfaces with extremal elastic, viscoelastic and optical properties. Applications include design of 3D negative Poisson’s ratio materials, materials with extremal viscoelastic end electrical properties as well as the systematic design of structural color surfaces mimicking butterfly wings known from nature.
The audience is invited to download the TopOpt App which gives access to basic topology optimization on smart phones and tablets. The App can be downloaded from AppStore (iOS), Google Play (Android) or it can be run directly in a web-browser (http://www.topopt.dtu.dk/?q=node/863).
The presentation will give an overview of the topology optimization method and discuss recent advances with respect to length scale control and robustness towards manufacturing uncertainties. Special emphasis will be devoted to the use of topology optimization for the design of materials and surfaces with extremal elastic, viscoelastic and optical properties. Applications include design of 3D negative Poisson’s ratio materials, materials with extremal viscoelastic end electrical properties as well as the systematic design of structural color surfaces mimicking butterfly wings known from nature.
The audience is invited to download the TopOpt App which gives access to basic topology optimization on smart phones and tablets. The App can be downloaded from AppStore (iOS), Google Play (Android) or it can be run directly in a web-browser (http://www.topopt.dtu.dk/?q=node/863).
Practical information
- General public
- Free
Organizer
- IGM
Contact
- Géraldine Palaj