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Effect of continuous cooling transformation variations on numerical calculation of welding-induced residual stresses

  • Continuous cooling transformation (CCT) behavior affects the transient state of material properties employed in a numerical welding simulation, having a direct influence on the developing stress state. Three different CCT diagrams for S355J2 steel were employed to understand the influence of variations in CCT behavior on the numerical calculation of welding-induced residual stresses. The CCT diagrams were constructed from transformation data contained in the Sysweld software database, measured dilatometric data from Gleeble experiments, and transformation data calculated from the JMatPro software. The calculated transverse and longitudinal residual stress distributions provided a qualitative correction only in comparison to experimental measurements, with the largest deviation occurring near the weld interface. Overall, the results indicate a weak dependency of the calculated residual stresses due to anticipated CCT variations. The most significant effect on the calculated residualContinuous cooling transformation (CCT) behavior affects the transient state of material properties employed in a numerical welding simulation, having a direct influence on the developing stress state. Three different CCT diagrams for S355J2 steel were employed to understand the influence of variations in CCT behavior on the numerical calculation of welding-induced residual stresses. The CCT diagrams were constructed from transformation data contained in the Sysweld software database, measured dilatometric data from Gleeble experiments, and transformation data calculated from the JMatPro software. The calculated transverse and longitudinal residual stress distributions provided a qualitative correction only in comparison to experimental measurements, with the largest deviation occurring near the weld interface. Overall, the results indicate a weak dependency of the calculated residual stresses due to anticipated CCT variations. The most significant effect on the calculated residual stresses was shown to be related to the proportion of formed martensite. It is suggested that CCT data of approximate accuracy is sufficient for reliable calculation of welding-induced residual stresses.zeige mehrzeige weniger

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Metadaten
Autor*innen:J. Caron, Christoph Heinze, Christopher Schwenk, Michael RethmeierORCiD, S. S. Babu, J. Lippold
Dokumenttyp:Zeitschriftenartikel
Veröffentlichungsform:Verlagsliteratur
Sprache:Englisch
Titel des übergeordneten Werkes (Englisch):Welding journal
Jahr der Erstveröffentlichung:2010
Herausgeber (Institution):Welding Research Council
Verlag:American Welding Society
Verlagsort:New York, NY
Jahrgang/Band:89
Erste Seite:151-s - 160-s
Freie Schlagwörter:C-Mn steels; Continuous cooling transformation diagrams; Eigenspannungen; Gas metal arc welding; Martensitbildung; Martensite kinetic; Residual stresses; Schweißsimulation; Sensitivity analysis; Sensitivitätsanalyse; Sysweld; Welding simulation
ISSN:0043-2296
ISSN:0096-7629
Verfügbarkeit des Dokuments:Physisches Exemplar in der Bibliothek der BAM vorhanden ("Hardcopy Access")
Bibliotheksstandort:Sonderstandort: Publica-Schrank
Datum der Freischaltung:19.02.2016
Referierte Publikation:Ja
Datum der Eintragung als referierte Publikation:17.06.2010
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