Adaptive mesh technique for thermal–metallurgical numerical simulation of arc welding processes
| Autor: | Elisabeth Massoni, Makhlouf Hamide, Michel Bellet |
|---|---|
| Přispěvatelé: | Centre de Mise en Forme des Matériaux (CEMEF), MINES ParisTech - École nationale supérieure des mines de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS) |
| Rok vydání: | 2008 |
| Předmět: |
Engineering drawing
Engineering Finite elements Phase (waves) Mechanical engineering 010103 numerical & computational mathematics Welding 7. Clean energy 01 natural sciences [SPI.MAT]Engineering Sciences [physics]/Materials law.invention Error estimation law Heat transfer Phase transformations 0101 mathematics Numerical Analysis Anisotropic metric Computer simulation business.industry Applied Mathematics General Engineering Estimator Finite element method 010101 applied mathematics Mesh generation Line (geometry) Mesh adaptation Arc welding business |
| Zdroj: | International Journal for Numerical Methods in Engineering International Journal for Numerical Methods in Engineering, Wiley, 2008, 73 (5), pp.Pages 624-641. ⟨10.1002/nme.2083⟩ |
| ISSN: | 1097-0207 0029-5981 |
| Popis: | International audience; A major problem arising in finite element analysis of welding is the long computer times required for a complete three-dimensional analysis. In this study, an adaptative strategy for coupled thermometallurgical analysis of welding is proposed and applied in order to provide accurate results in a minimum computer time. The anisotropic adaptation procedure is controlled by a directional error estimator based on local interpolation error and recovery of the second derivatives of different fields involved in the finite element calculation. The methodology is applied to the simulation of a gas-tungsten-arc fusion line processed on a steel plate. The temperature field and the phase distributions during the welding process are analyzed by the FEM method showing the benefits of dynamic mesh adaptation. A significant increase in accuracy is obtained with a reduced computational effort. |
| Databáze: | OpenAIRE |
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