Figure 1.

Schema of G&R in a constrained mixture of multiple prestretched constituents. The k^th newly produced constituent, with natural (unstressed) configuration ${\kappa }_n^k(\tau )$, is incorporated into the in vivo configuration κ(τ) under a state of prestretch G^k(τ) at deposition time τ ∈ [0, s]. Deformation gradients F(τ) and F(s) describe motions from the reference configuration κ(0) (an original and known in vivo state) to κ(τ) and the current in vivo configuration κ(s), respectively.