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Physical and Numerical Simulation of the Heat-affected Zone of Multi-pass Welds

  • The paper presents a numerical and experimental approach for the quantification of the thermo-mechanical properties in multi-pass weld’s heat affected zone (HAZ) of low alloy steel “S355J2+N”. First, the characteristic temperature cycles for multi-pass welds were identified by FE temperature field simulations of welding. Based on the identified temperature cycles, the microstructure in the HAZ has been physically simulated with the simulation and testing system Gleeble 3500 to investigate the influence of multi thermal exposure on the thermo-mechanical properties. Thus, the thermo-mechanical material properties including thermal strain and temperature dependent stress strain behaviour as function of peak temperatures and cooling rates have been determined. These material properties were used to calibrate a developed model for numerical prediction of the material properties of multi-pass weld HAZ.

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Metadaten
Author: Gancho Vladimirov Genchev, Ossama Dreibati, Ralf OssenbrinkORCiD, Nikolay DoynovORCiD, Vesselin MichailovORCiDGND
URL:http://www.scientific.net/MSF.762.544
ISSN:0255-5476
Title of the source (English):Materials Science Forum
Document Type:Scientific journal article peer-reviewed
Language:English
Year of publication:2013
Tag:multi-pass welds; physical simulation, Gleeble; thermo-mechanical properties; welding simulation
Issue number:Vol. 762
First Page:544
Last Page:550
Faculty/Chair:Fakultät 3 Maschinenbau, Elektro- und Energiesysteme / FG Füge- und Schweißtechnik
Institution name at the time of publication:Fakultät für Maschinenbau, Elektrotechnik und Wirtschaftsingenieurwesen (eBTU) / LS Füge- und Schweißtechnik
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