Delamination cracks in multilayered circular shafts loaded in torsion are analyzed in terms of the strain energy release rate. It is assumed that the material in each layer has non-linear mechanical behaviour that is treated by the Ramberg-Osgood constitutive law. Also. each layer exhibits smooth material inhomogeneity in radial direction. https://www.bekindtopets.com/save-now-Rx-Chorulon-HCG-for-Cattle-save-extra/