Hi Guys, I've got a question regarding welding simulation. I'm modeling a plate of size 180*120*17mm and a moving heat source using Abaqus and DFLUX subroutine. Therefore, I wrote the input file, define the properties, loads, convection and radiation, etc. I also wrote a FORTRAN code -DFLUX- for moving heat source. Heat transfer is problematic. The heat transfers all the way to the plate surface at the the same time so basically it doesn't simulate a moving heat source. Do you have any idea what could have caused this?