Effects of cortical growth on wavelength, subcortical growth, and stress in the axisymmetric ellipsoid model. Initial radial growth in the core was attained with Eq. 15 with F(R, θ, τ) = 10τ cos 32θ for τ < 0.1. Columns: Initial radial growth GR at τ =0.10; radial growth GR; tangential growth Gt; radial stress σr; tangential stress σt; 3D view of radial stress σr. Row 1: ΓG = 0.50, τ =0.90; Row 2: ΓG = 0.20, τ =1.25.