Post-processing the results of the topology optimization with the level-set technique

0566190 - ÚT 2023 CZ eng A - Abstract
Ježek, Ondřej - Kopačka, Ján - Gabriel, Dušan
Post-processing the results of the topology optimization with the level-set technique.
COMPUTATIONAL MECHANICS 2022. Plzeň: University of West Bohemia Plzeň, 2022 - (Adámek, V.; Jonášová, A.; Plánička, S.; Zajíček, M.). s. 42-45. ISBN 978-80-261-1116-0.
[Computational Mechanics 2022 /37./. 07.11.2022-09.11.2022, Srní]
R&D Projects: GA TA ČR(CZ) TN01000024
Institutional support: RVO:61388998
Keywords : topology optimization * post-processing * level-set method
OECD category: Applied mechanics

Topology optimization (TO) has come to the fore with the development of 3D printing. The most commonly used method is SIMP, a density-based approach, which outputs a constant density field after the elements and thus requires post-processing to obtain the shape. Conventional methods average the element densities into nodal values and consequently interpolate them, most frequently with linear polynomials. It yields only C0 continuous geometry which is usually not suitable for post-processing. Moreover, the FEM grid used for TO by the SIMP method is very often regular, which makes it difficult to affect the shape of complex details. In this paper, we focus on using the level-set method combined with RBF (radial basis function) in order to smooth the TO results. The proposed approach is also generalized to irregular grids
Permanent Link: https://hdl.handle.net/11104/0339151