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Simultaneous topology and fastener layout optimization of assemblies considering joint failure
Citation Link: https://doi.org/10.15480/882.3377
Publikationstyp
Journal Article
Publikationsdatum
2021-01-15
Sprache
English
Author
Ambrozkiewicz, Olaf
TORE-URI
Volume
122
Issue
1
Start Page
294
End Page
319
Citation
International Journal for Numerical Methods in Engineering 122 (1): 294-319 (2021-01-15)
Publisher DOI
Scopus ID
ArXiv ID
Publisher
Wiley
This paper provides a method for the simultaneous topology optimization of parts and their corresponding joint locations in an assembly. Therein, the joint locations are not discrete and predefined, but continuously movable. The underlying coupling equations allow for connecting dissimilar meshes and avoid the need for remeshing when joint locations change. The presented method models the force transfer at a joint location not only by using single spring elements but accounts for the size and type of the joints. When considering riveted or bolted joints, the local part geometry at the joint location consists of holes that are surrounded by material. For spot welds, the joint locations are filled with material and may be smaller than for bolts. The presented method incorporates these material and clearance zones into the simultaneously running topology optimization of the parts. Furthermore, failure of joints may be taken into account at the optimization stage, yielding assemblies connected in a fail-safe manner.
Schlagworte
fail-safe
joint optimization
topology optimization
DDC Class
690: Hausbau, Bauhandwerk
720: Architektur
Funding Organisations
More Funding Information
Bundesministerium für Wirtschaft und Energie, Grant/Award Number: 20W1708E; Deutsche Forschungsgemeinschaft, Grant/Award Number: KR 4914/3-1
Publication version
publishedVersion
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Format
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