Hi I am currently working on a project that involves the analysis of fatigue life of a material after undergoing "Deep Cold Rolling" machining process. This process induces compressive residual stresses into the material which in turn improves the fatigue life of the material. I am in the process of validating this result through Abaqus. However, I don't know how to input this compressive residual stress into the part before performing the analysis. I would be really happy and grateful if someone can provide me a guidance in this subject.

Thank you !