For some engineering purposes like welding or SCC where IGS (Inter Granular Stresses) increase susceptibility to cracking, some indicator of the level of plastic deformation becomes useful. For this purpose, a full pattern relating strain and tilt angle for different hkl planes is needed. We have developed a crystal plasticity model in the FE software ABAQUS using a user material subroutine which from full stress map simulations of the aggregate and the effect of plastic deformation on IGS can be extracted. The amount of plastic deformation has been measured in neutron diffraction by looking at both: peak width and the relative peak shifting. However, whereas this has been measured only in two directions (loading and transversal) for different hkl planes [1], further measurements are needed to be compared to the strain/tilt-angle patterns for different planes produced by our model.