Journal
SIMULATION MODELLING PRACTICE AND THEORY
Volume 20, Issue 1, Pages 112-123Publisher
ELSEVIER
DOI: 10.1016/j.simpat.2011.09.004
Keywords
Welding simulation; Heat source calibration; Gas metal arc welding; Sensitivity analysis; Distortion
Funding
- Federal Ministry of Economics and Technology (BMWi) through the Arbeitsgemeinschaft industrieller Forschungsvereinigungen e.V.
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The results of numerical welding simulations strongly depend on its temperature field. In the present paper, the temperature field of a pulsed gas metal arc weld of structural steel S355J2+N (ASTM A572 Gr. 50) with a thickness of 5 mm is experimentally and numerically investigated. In the case of temperature field validation, volumetric Gauss and double-ellipsoid Goldak heat sources are applied. Additionally, different heat source configurations, including adaptations of thermal conductivity, are analyzed regarding their influence on the calculation of welding-induced distortion. The investigations clarify the influence of heat source configurations on the calculated results, thus, contribute to an improved prediction of welding-induced distortion. (C) 2011 Elsevier B.V. All rights reserved.
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