Journal
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
Volume 154, Issue -, Pages -Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ijheatmasstransfer.2020.119633
Keywords
Moving heat source; Meshless Element-Free Galerkin; robotic arc welding; Numerical simulation; Experimental validation; Support domain; Weight function
Categories
Funding
- Natural Sciences and Engineering Research Council of Canada (NSERC)
- Fonds de recherche du Quebec - Nature et technologies (FRQNT)
- Fonds de developpement de l'ETS (FDETS)
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A three-dimensional unsteady heat transfer model based on the meshless Element-Free Galerkin (EFG) method was developed to predict the temperature field generated by a moving heat source. Numerical results obtained from the EFG method were compared with those from the finite element method (FEM) and then validated with robotic arc welding experimental results. Good agreements were found between the numerical and experimental results. An EFG parametric study was also carried out to investigate the effects of (i) the size and shape of the support domain, (ii) the ratio of quadrature points to field nodes, and (iii) the different weight functions. (C) 2020 Elsevier Ltd. All rights reserved.
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