I am using the predefined field option in abaqus and I am going to use a empty static load step to allow it to reach equilibrium. Should I apply boundary conditions , Which boundary conditions should I apply?
You can apply residual stress for rolled steel section (for an Abaqus/Standard analysis) by writing (in Fortran) the body of the SIGINI Abaqus user subroutine.(http://129.97.46.200:2080/v6.13/books/sub/default.htm).