Development of strategies to reduce the computational cost in simulations of welding process
Rafael de Souza Pereira1; José Dásio de Lira Junior1; Pablo Batista Guimarães1; Tiago de Souza Antonino1
1 Instituto Federal de Pernambuco
doi:10.20906/CPS/COB-2015-0927
Resumo
The finite element method (FEM) is a numerical method that aims to obtain approximate solutions to engineering problems. Thermal problems may have approximate solutions, however, in most cases, the resolution of the problem generates a large computational cost. Thus, the development of strategies to reduce the computational cost is very important. This work developed strategies to improve the quality of mesh in computer simulations of welding process based on MEF. The methodology is applied in simulations of the TIG welding process (Tungsten Inert Gas), also known as GTAW (Gas Tungsten Arc Shielded-Welding). In welding problem, geometric models in two and three dimensions were developed and compared. The graphics of thermal cycles were obtained. The results showed the need for strategies to reduce the execution time of welding simulations based on MEF.
Palavras-chave: Welding Simulation; TIG Welding Process ; Finite Element Method