UDC 669.1

A. H. Monfared

NUMERICAL SIMULATION OF WELDING DISTORTION IN THIN PLATES

A three-dimensional model based on the finite element 
method is developed to simulate the temperature field and stress distribution 
in the welding and heat affected zones during fusion welding of thin 
plates. The governing equations are solved using the SYSWELD program 
commercial code. The model's predictions are tested and verified against 
the experiments. Angular distortion and longitudinal bending are measured, 
the results are compared with those obtained from the mathematical 
model, and a relatively good agreement between them is found. The 
verified model is used to evaluate the effects of various parameters 
on the temperature and stress distributions in the welding and heat 
affected zones of a thin austenitic stainless steel plate.

Keywords: welding, three-dimensional finite element 
simulation, distortion.

Belarusian National Technical University, 65 F. Skorina Ave., 
Minsk, 220013, Belarus; email: afshin_rommel@yahoo.com. 
Original article submitted August 29, 2011.