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Análisis térmico de soldadura GTAW sobre placa de acero AISI 316L empleando el método de elementos finitos
- Source :
- Soldagem & Inspeção v.16 n.3 2011, Revista soldagem & inspeção, Associação Brasileira de Soldagem (ABS), instacron:ABS, Soldagem & Inspeção, Volume: 16, Issue: 3, Pages: 256-264, Published: SEP 2011
- Publication Year :
- 2011
- Publisher :
- FapUNIFESP (SciELO), 2011.
-
Abstract
- En el presente trabajo se realiza la modelación térmica de soldadura GTAW sobre placa de acero inoxidable AISI 316L. Se analizan los aspectos teóricos más relevantes a considerar durante la ejecución de un análisis de este tipo. En la simulación se emplea un software de análisis por elementos finitos de uso general y se enriquece una metodología, previamente desarrollada, para la modelación en 3D no lineal transitoria del proceso de soldeo. En dicha metodología se implementa una subrutina en lenguaje APDL, programada con el modelo volumétrico de fuente calor de doble elipsoide, en un sistema de coordenadas cartesiano. Se analiza la influencia del paso de tiempo seleccionado sobre los resultados de la simulación. Finalmente se valida la metodología enriquecida, en base a la correlación de los resultados del modelo respecto a los resultados experimentales. In the present work, thermal modeling of GTAW welding on AISI 316L stainless steel plate is presented. More relevant theoretical aspects to be considered during the implementation of an analysis of this type are discussed. For the simulation a general purpose finite element analysis software has been used. A previously developed methodology for 3D nonlinear transient modeling of welding process has also been improved. In this methodology a subroutine in APDL language is implemented, programmed with the double ellipsoid volumetric heat source model, in a Cartesian coordinated system. The influence of the selected time step on the simulation results is analyzed. The good correlation obtained among the results calculated by means of the model and the experimental data validates this improved methodology.
- Subjects :
- Engineering
business.industry
modelation
Mechanical Engineering
Subroutine
Gas tungsten arc welding
Metals and Alloys
Mechanical engineering
modelación
Time step
Ellipsoid
Finite element analysis software
ANSYS
General purpose
Welding process
Mechanics of Materials
Soldadura
Welding
business
Source model
GTAW
Subjects
Details
- ISSN :
- 01049224
- Volume :
- 16
- Database :
- OpenAIRE
- Journal :
- Soldagem & Inspeção
- Accession number :
- edsair.doi.dedup.....44f6650d40d2dab5e046ab4bc971ede2
- Full Text :
- https://doi.org/10.1590/s0104-92242011000300007