Stress intensity factor in residual stress field

[Mashinsazi]

Hi everyone
I'm trying to calculate stress intensity factor for a crack that grow in a residual stress field. I think that abaqus crack contour integral should be used. The residual stress field is caused due to a plastic tensile load that exerted before crack appearance. I don't know how to create this residual stress before crack (seam)? If someone knows how can I do it, it would be of great help.