期刊
SIMULATION MODELLING PRACTICE AND THEORY
卷 20, 期 1, 页码 112-123出版社
ELSEVIER
DOI: 10.1016/j.simpat.2011.09.004
关键词
Welding simulation; Heat source calibration; Gas metal arc welding; Sensitivity analysis; Distortion
资金
- Federal Ministry of Economics and Technology (BMWi) through the Arbeitsgemeinschaft industrieller Forschungsvereinigungen e.V.
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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