Figure 4.2.

Unconstrained growth of a tubular cellularized tissue with orthotropic solid matrix. Growth is induced by increasing the cell solute and solid content fivefold. (a) Initial configuration. (b) Final configuration when axial stiffness is negligible, ${\mu }_Z^s\ll {\mu }_R^s,{\mu }_{ϴ}^s$. (c) Final configuration when radial and circumferential stiffnesses are negligible, ${\mu }_R^s={\mu }_{ϴ}^s\ll {\mu }_Z^s$.