Investigation on automated loading of dynamic 3D heat source during welding simulation

Since loading complex and dynamic heat source is a difficult job during welding simulation process, methods are studied to add the load automatically. Firstly, an expert module for selecting welding heat source model is founded based on simulation knowledge and experiences. Secondly, a method named as "High order routine" is presented, which creates subroutines of 3D dynamic heat source model for user. Then an automated tool is presented to load the welding heat source boundary based on Marc software. The tool uses Marc command file to robustly achieve the process. At last, an electron beam welding heat model is presented to express the loading method.