3-D Stress Intensity Factors due to Autofrettage for an Inner Radial Lunular or Crescentic Crack in a Spherical Pressure Vessel

•3-D SIFs for radial cracks in an autofrettaged spherical pressure vessel.•Analysis of the influence of relative crack depth and crack ellipticity.•Analysis of the influence of the spherical pressure vessel geometry.•Analysis of the influence of the autofrettage model including the Bauschinger effect.•Analysis of the influence of the level of autofrettage.