Aims and Scope
The goal of this workshop is to bring together scientists from numerical analysis, geometric modeling and engineering who are interested in topology optimization and isogeometric analysis. We aim at connecting the two fields by developing an isogeometric modeling framework that is well-suited for topology optimization, i.e., that allows for general topologies and that can handle changes in the topology in a robust and efficient way. On the other hand, we study topology optimization technologies that are suitable for B-spline and NURBS based geometry discretizations. The topics of the talks range from topology optimization in practical applications, topological derivatives, level set and density-based methods, to geometric modeling of topologically complex shapes, geometry segmentation and parametrization methods and unstructured splines spaces.
Schedule
Monday, September 11, 2023
13:45 – 14:00 Opening
14:00 – 14:30 Peter Gangl (RICAM)
An Introduction to Topology Optimization
14:30 – 15:15 Stefan Takacs (JKU Linz)
An Introduction to Isogeometric Analysis
15:15 – 15:45 Coffee break
15:45 – 16:15 Thomas Takacs (RICAM)
Geometric Challenges in Isogeometric Analysis
16:15 – 17:00 Mario Kapl (Carinthia University of Applied Sciences)
C1 smooth isogeometric spline spaces for trilinearly parameterized multi-patch volumes
17:00 – 17:45 Andrea Bressan (IMATI CNR)
A dirty trick
Tuesday, September 12, 2023
08:30 – 09:15 Emad Shakur (RICAM)
Isogeometric analysis for solving topology optimization problems with precise and explicit boundary representation
09:15 – 10:00 Fehmi Cirak (Cambridge University)
Unified geometry and analysis representations for shape and topology optimisation
10:00 – 10:40 Coffee break
10:40 – 11:05 Bert Jüttler (JKU Linz)
Locally linearly independent B-spline bases on adaptively refined hierarchical T-meshes
11:05 – 11:30 Felix Scholz (JKU Linz)
Optimizing isogeometric discretizations using deep neural networks
11:30 – 12:15 Benjamin Marussig (TU Graz)
Immersed Boundary-Conformal Method: An isogeometric discretization for topology optimization?
12:15 – 14:00 Lunch break
14:00 – 14:45 Majd Kosta (Technion)
Multi-material stress constrained topology optimization with precise evolving boundaries using IGA
14:45 – 15:30 Michael Wiesheu (TU Darmstadt)
Topology Optimization of a Magnetocaloric Refrigeration System with Isogeometric Analysis
15:30 – 16:15 Coffee break
16:15 – 17:00 Hugo Verhelst (TU Delft)
Isogeometric Analysis of Wrinkling
19:00 Dinner at Gasthof Lüftner (Klausenbachstraße 18, A-4040 Linz)
Wednesday, September 13, 2023
09:00 – 09:35 Jan Groselj (University of Ljubljana)
C1 Clough-Tocher splines of higher degrees in a B-spline-like representation
09:35 – 10:10 Marjeta Knez (University of Ljubljana)
A family of C1 Clough-Tocher spline spaces on G0 piecewise quadratic domain partitions
10:10 – 10:45 Coffee break
10:45 – 11:30 Jochen Hinz (EPFL)
Spline-based parameterisation techniques
11:30 – 12:15 Ye Ji (TU Delft/Dalian)
Analysis-suitable Parameterization Techniques for Isogeometric Analysis
Venue
The workshop takes place in the seminar room SP2 416-2 at the RICAM institute (4th floor of building "Science Park 2" at JKU Campus in Linz, Austria).
Organizers
Peter Gangl (e-mail: peter.gangl(at)ricam.oeaw.ac.at)
Thomas Takacs (e-mail: thomas.takacs(at)ricam.oeaw.ac.at)