Figure 8.

(Color online) Components of the vector of geometric parameters ${\mathcal{W}}_g$ (characteristic length ${\ell }_c$, porosity $\varphi$ and stretch $\chi$) are shown in (a), as a function of the position $x_3$. Scalar JCAL parameters ($\varphi ,{\mathsf{\Theta }}^0,{\mathsf{\Lambda }}^{\prime }$) are given in (b) and direction-dependent ones (${\tau }_{\perp }^{\infty },{\tau }_{33}^{\infty },K_{\perp }^0,K_{33}^0,{\mathsf{\Lambda }}_{\perp },{\mathsf{\Lambda }}_3$) are in (c), with respect to $x_3$. The graded values are in solid lines, and the non-graded ones in dashed lines; in orange for the normal direction, and in green for the transverse direction. The sketch in (d) displays snapshots of the unit cells at intervals of $L/3$ between interfaces ${\mathsf{\Gamma }}_0$ and ${\mathsf{\Gamma }}_L$.