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Residual stress influence on the flexural buckling of welded I-girders
- The nonlinear analysis became a common tool to precisely assess the load-bearing behavior of steel beam and column members. The failure level is significantly influenced by different types of imperfections, among geometric also structural imperfections (residual stresses). Here are still gaps in the knowledge. Nowadays, 3-D welding simulation developed to a level where it could provide reliable estimation of weld-induced distortion and residual stresses. Nevertheless, modelling and computational effort are still in a less practicable range. In this study a simplified procedure to implement residual welding stresses in continuous large scale members is proposed and the influence on the ultimate limit state of slender members in compression is evaluated for two common structural steel grades. The results showed significant improvements in the utilization of load bearing capacity compared with simplified design methods. The comparatively general approach in this study offers potentialThe nonlinear analysis became a common tool to precisely assess the load-bearing behavior of steel beam and column members. The failure level is significantly influenced by different types of imperfections, among geometric also structural imperfections (residual stresses). Here are still gaps in the knowledge. Nowadays, 3-D welding simulation developed to a level where it could provide reliable estimation of weld-induced distortion and residual stresses. Nevertheless, modelling and computational effort are still in a less practicable range. In this study a simplified procedure to implement residual welding stresses in continuous large scale members is proposed and the influence on the ultimate limit state of slender members in compression is evaluated for two common structural steel grades. The results showed significant improvements in the utilization of load bearing capacity compared with simplified design methods. The comparatively general approach in this study offers potential for future optimization.…
Autor*innen: | B. Launert, Michael RhodeORCiD, Arne KrommORCiD, H. Pasternak, Thomas KannengießerORCiD |
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Persönliche Herausgeber*innen: | T.-M. Olden, O. Muransky, L. Edwards |
Dokumenttyp: | Beitrag zu einem Tagungsband |
Veröffentlichungsform: | Verlagsliteratur |
Sprache: | Englisch |
Titel des übergeordneten Werkes (Englisch): | Residual Stresses 2016: ICRS-10 |
Jahr der Erstveröffentlichung: | 2016 |
Veröffentlichende Institution: | Bundesanstalt für Materialforschung und -prüfung (BAM) |
Verlag: | Materials Research Forum LLC |
Verlagsort: | Millersville (PA), USA |
Jahrgang/Band: | 2 |
Erste Seite: | 109 |
Letzte Seite: | 114 |
DDC-Klassifikation: | Technik, Medizin, angewandte Wissenschaften / Ingenieurwissenschaften / Ingenieurwissenschaften und zugeordnete Tätigkeiten |
Technik, Medizin, angewandte Wissenschaften / Ingenieurwissenschaften / Ingenieurbau | |
Freie Schlagwörter: | 2-D Welding Simulation; Finit Element Method; Inherent Strain; Plasticity-based Analysis; Stability Design |
Veranstaltung: | ICRS 2016 - 10th International Conference on Residual Stresses |
Veranstaltungsort: | Sydney, Australia |
Beginndatum der Veranstaltung: | 03.07.2016 |
Enddatum der Veranstaltung: | 07.07.2016 |
DOI: | 10.21741/9781945291173-19 |
URN: | urn:nbn:de:kobv:b43-389210 |
ISSN: | 2474-395X |
ISBN: | 978-1-94529117-3 |
ISBN: | 978-1-94529117-6 |
Verfügbarkeit des Dokuments: | Datei für die Öffentlichkeit verfügbar ("Open Access") |
Lizenz (Deutsch): | Creative Commons - Namensnennung |
Datum der Freischaltung: | 10.01.2017 |
Referierte Publikation: | Ja |
Datum der Eintragung als referierte Publikation: | 02.06.2017 |
Schriftenreihen ohne Nummerierung: | Wissenschaftliche Artikel der BAM |