Analytical Solution for Semi-Infinite Body Subjected to 3D Moving Heat Source and Its Application in Weld Pool Simulation

摘要

The paper describes the analytical solution for double-ellipsoidal power density moving heat source in semi-infinite body and its application in weld pool simulation. The solution has been obtained by integrating the instant point heat source throughout the volume of the ellipsoidal heat source. Very good agreement between the predicted weld pool geometry and the measured ones has been obtained. This may pave the way for the future applications of this solution in various problems such as microstructure modeling, thermal stress analysis, residual stress/distortions and welding process simulation.