Influence of production-related gaps on strength properties and deformation behaviour of spot welded trip steel HCT690T
- In this study, the influence of production-related gaps on the shear tension strength and fatigue performance was investigated for resistance spot welded TRIP steel HCT690. Furthermore, the local strain distribution in shear tension test was calculated by the digital image correlation technique (DIC). The static shear tension strength was found to be almost independent of gaps up to 3 mm. The maximum local strain in the spot weld region however decreases depending on which sample side (deformed or undeformed) is considered. In addition, it has been ascertained that gaps of 3 mm lead to a significant drop in fatigue life compared to gap-free shear tension samples. This fact could be attributed to decreased stiffness, higher transverse vibration and higher rotation (θ) between the sheets as well as increased local stress calculated by 2 dimensional FE simulation.
Autor*innen: | Stephan Brauser, Michael RethmeierORCiD, Lutz-Alexander Pepke, Gert Weber |
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Dokumenttyp: | Zeitschriftenartikel |
Veröffentlichungsform: | Verlagsliteratur |
Sprache: | Englisch |
Titel des übergeordneten Werkes (Englisch): | Welding in the world |
Jahr der Erstveröffentlichung: | 2012 |
Herausgeber (Institution): | International Institute of Welding |
Verlag: | Springer |
Verlagsort: | Oxford |
Jahrgang/Band: | 56 |
Ausgabe/Heft: | 03-04 |
Erste Seite: | 115 |
Letzte Seite: | 125 |
Freie Schlagwörter: | Deformation; Fatigue life; Finite element analysis; Gap; Resistance spot welding; Shear strength |
ISSN: | 0043-2288 |
ISSN: | 1878-6669 |
Verfügbarkeit des Dokuments: | Datei im Netzwerk der BAM verfügbar ("Closed Access") |
Datum der Freischaltung: | 20.02.2016 |
Referierte Publikation: | Ja |
Datum der Eintragung als referierte Publikation: | 22.01.2013 |