Fig. 4.

a Surface displacement u (h, t)/hξ for 1D analysis of interstitial solid growth. The analytical solution is based on (59), with $\eta =(1-{\phi }_r^s)\widehat{\zeta }\bar{\mathcal{V}}\tau$. The finite element solution was obtained using h = 1, H_A = 1, k = 1, and $(1-{\phi }_r^s)\widehat{\zeta }\bar{\mathcal{V}}={10}^{-3}$. b Mesh convergence results