A non-invasive node-based form finding approach with discretization-independent target configuration

Journal article


Publication Details

Author(s): Caspari M, Landkammer P, Steinmann P
Journal: Advanced Modeling and Simulation in Engineering Sciences
Publication year: 2018
Volume: 5
Journal issue: 1
ISSN: 2213-7467
Language: English


Abstract

Form finding is used to optimize the shape of a semi-finished product,
i.e. the material configuration in a forming process. The geometry of
the semi-finished product is adapted so that the computed spatial
configuration corresponds to a prescribed target spatial configuration.
Differences between these two configurations are iteratively minimized.
The algorithm works non-invasively, thus there is a strict separation
between the form update and the finite element (FE) forming simulation.
This separation allows the use of arbitrary commercial FE-solvers. In
particular, there is no need for a modification of the FE forming
simulation, only the material configuration is iteratively updated. A
new method is introduced to calculate the difference between the target
and the computed spatial configuration. Thereby the target mesh is
separated from the mesh for the FE forming simulation, which enables a
more accurate and independent representation of the target
configuration. In addition, the possibility of taking into account
manufacturing constraints in the optimization process is presented. The
procedure is illustrated for the example of the first stage of a novel
two-stage sheet-bulk metal forming process.


FAU Authors / FAU Editors

Caspari, Michael
Sonderforschungsbereich/Transregio 73 Umformtechnische Herstellung von komplexen Funktionsbauteilen mit Nebenformelementen aus Feinblechen - Blechmassivumformung
Landkammer, Philipp
Sonderforschungsbereich/Transregio 73 Umformtechnische Herstellung von komplexen Funktionsbauteilen mit Nebenformelementen aus Feinblechen - Blechmassivumformung
Steinmann, Paul Prof. Dr.-Ing.
Lehrstuhl für Technische Mechanik


Research Fields

Optimization
Lehrstuhl für Technische Mechanik


How to cite

APA:
Caspari, M., Landkammer, P., & Steinmann, P. (2018). A non-invasive node-based form finding approach with discretization-independent target configuration. Advanced Modeling and Simulation in Engineering Sciences, 5(1). https://dx.doi.org/10.1186/s40323-018-0104-9

MLA:
Caspari, Michael, Philipp Landkammer, and Paul Steinmann. "A non-invasive node-based form finding approach with discretization-independent target configuration." Advanced Modeling and Simulation in Engineering Sciences 5.1 (2018).

BibTeX: 

Last updated on 2019-21-03 at 13:50