Ponencia
3D Multi-pass finite element welding modelling of butt-welded plate specimen
Autor/es | Sanz Balduz, Luis Javier
Salesa Bordanaba, Ángel González Abril, Emilio |
Fecha de publicación | 2015 |
Fecha de depósito | 2016-02-17 |
Publicado en |
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ISBN/ISSN | 978-84-606-9356-7 |
Resumen | A multi-pass welding of a thin rectangular (dog-bone shaped) butt joint plate is numerically simulated as a coupled thermo-mechanical transient problem. The simulation uses an “element-birth” technique to simplify the ... A multi-pass welding of a thin rectangular (dog-bone shaped) butt joint plate is numerically simulated as a coupled thermo-mechanical transient problem. The simulation uses an “element-birth” technique to simplify the complexity of the problem. The paper discusses the challenges of the simulation of a multi-pass weld problem and the utility of the results for practical applications. The final solution shows crucial stress distributions in a challenging geometry where large thermal transients and gradients are created by the welding procedure. The results also indicate the plastic yielding of the weld-joint after extensive cooling of the joined plate. The displacements from the results can be used to estimate the extent of distortions qualitatively. Despite minimal resources (2 CPUs on a standard Intel desktop architecture and 2 GB RAM over duration of 4 days) the procedure is able to provide adequate details in predicting residual stresses for multi-pass welded components. |
Ficheros | Tamaño | Formato | Ver | Descripción |
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CMMoST 2015_Sanz_3D.pdf | 2.963Mb | [PDF] | Ver/ | |