Tensile deformation of an Mg sample with a notch. (a) Contour plot of the experimental and simulated stress along the tensile z axis at 170 MPa, i.e. just before yielding. The concentration of tensile stress in front of the notch is evident. (b) The extent of the plastic deformation zone as estimated from the experimental contour plots of the lattice rotation overlaid by the simulated contour levels of the effective plastic strain (∊p in %). From Oddershede et al. (2012).