Figure 8.

Comparison of predicted and ‘experimental’ indentation responses for Sn. See the caption of figure 6 for the meanings of HT, S and HTS. The associated values of $n$, ${\sigma }_0$, ${\dot{ϵ}}_0$ and $\alpha$ are given in table 4. (a) Normalized indentation depth $h/h_{\mathrm{ela},\mathrm{Sn}}$ versus normalized time $t/t_{\mathrm{ref},\mathrm{Sn}}$ where $t_{\mathrm{ref},\mathrm{Sn}}=1/{\dot{ϵ}}_{0,\mathrm{Sn}}$. (b) Normalized surface profiles, $z/h_{\mathrm{ela},\mathrm{Sn}}$ versus $r/h_{\mathrm{ela},\mathrm{Sn}}$, near the indenter after unloading. (c) ${\log }_{10}$–${\log }_{10}$ plot of (a). On the scales in (a) and (b), the predictions with S; HTS data are indistinguishable from the corresponding ‘experimental’ responses. In (c), all three responses are indistinguishable.