On the inclusion of plastic material behavior within the thermodynamic topology optimization

verfasst von
Miriam Kick, Philipp Junker
Abstract

Accounting for the real material behavior in topology optimization is essential since it determines the final optimal structure. For considering a plastic material behavior, we propose a surrogate plasticity model within the thermodynamic topology optimization to handle this complex material behavior in a resource-efficient manner. We model physically correct plastic strains analogously to classic plasticity models but without path-dependence and hysteresis during the course of optimization. This is verified by comparison to classic elasto-plastic models. To demonstrate the necessity of accounting for the realistic material model, we present optimization results where the structural changes due to plastic deformations become apparent.

Organisationseinheit(en)
Institut für Kontinuumsmechanik
Typ
Konferenzaufsatz in Fachzeitschrift
Journal
PAMM - Proceedings in Applied Mathematics and Mechanics
Band
23
ISSN
1617-7061
Publikationsdatum
31.05.2023
Publikationsstatus
Veröffentlicht
Peer-reviewed
Ja
Elektronische Version(en)
https://doi.org/10.1002/pamm.202200045 (Zugang: Offen)
 

Details im Forschungsportal „Research@Leibniz University“