Effects of temperature-dependent material properties on welding simulation

摘要

Detailed three-dimensional nonlinear thermal and thermo-mechanical analyses are carried out using the finite ele- ment welding simulation code-WELDSIM [Chao et al., In: Advances in Computational & Engineering Science, vol. II, Tech Science Press: Paledale, USA: 2000. Pp. 1206-1211]. The objective is to investigate the effect of each tem- Perature-dependent material property on the transient temperature, residual stress and distortion in computational Simulation of welding process. Welding of an aluminum plate using three sets of material properties, namely, properties That are functions of temperature, room temperature values, and average values over the entire temperature history in Welding, are considered in the simulation.