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Simulation des thermischen Verhaltens beim Reibrührschweißen zur Vorhersage von Eigenspannungen

Dresbach, Christian and van Enkhuizen, Marinus Johannus and Alfaro Mercado, Ulises and Reh, Stefan (2013) Simulation des thermischen Verhaltens beim Reibrührschweißen zur Vorhersage von Eigenspannungen. In: Deutscher Luft- und Raumfahrtkongress. Deutscher Luft- und Raumfahrtkongress 2013, 10.-12. Sep. 2013, Stuttgart.

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Using a transient thermal finite element analysis, the thermal behavior during friction stir welding (FSW) of aluminum sheets for aerospace applications was calculated. The thermal behavior during the FSW process is of interest for all aspects of distortion engineering or microstructural interpretations for material design. In the presented approach only the measured temperature history of the welding tool, the thermo mechanical material properties and thermal contact properties have to be known. Since the calculated time depending temperature distribution agrees very well with experimentally measured temperatures at seven different locations during a FSW experiment, it is concluded that the model accurately predicts the thermal history during welding. In addition, a first attempt to calculate the residual stresses and the sheet distortions caused by these residual stresses is presented and compared to experimental results. Although the calculated values of the distortion are too low compared to experimental results, the approach gives a first impression on the origin of the distortion and will be pursued in further investigations.

Item URL in elib:https://elib.dlr.de/85080/
Document Type:Conference or Workshop Item (Speech)
Title:Simulation des thermischen Verhaltens beim Reibrührschweißen zur Vorhersage von Eigenspannungen
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Dresbach, Christianchristian.dresbach (at) dlr.deUNSPECIFIED
van Enkhuizen, Marinus JohannusMarinus.vanenkhuizen (at) dlr.deUNSPECIFIED
Alfaro Mercado, Ulisesulises.alfaro (at) dlr.deUNSPECIFIED
Reh, Stefanstefan.reh (at) dlr.deUNSPECIFIED
Journal or Publication Title:Deutscher Luft- und Raumfahrtkongress
Refereed publication:No
Open Access:No
Gold Open Access:No
In ISI Web of Science:No
Keywords:FSW, Simulation, Verzug
Event Title:Deutscher Luft- und Raumfahrtkongress 2013
Event Location:Stuttgart
Event Type:national Conference
Event Dates:10.-12. Sep. 2013
Organizer:Deutsche Gesellschaft für Luft- und Raumfahrt
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:other
HGF - Program Themes:other
DLR - Research area:Aeronautics
DLR - Program:L - no assignment
DLR - Research theme (Project):L - no assignment (old)
Location: Köln-Porz
Institutes and Institutions:Institute of Materials Research > Metallic Structures and Hybrid Material Systems
Deposited By: Dresbach, Dr. Christian
Deposited On:18 Nov 2013 12:32
Last Modified:08 May 2014 23:19

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