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. 2014 Nov 18;5:2149–2163. doi: 10.3762/bjnano.5.224

Figure 3.

Figure 3

(a), (c), and (e) Standard linear solid (SLS) model, Wiechert model, and Nafion model, respectively; (b), (d), and (f) stress relaxation simulations for SLS, Wiechert, and Nafion models, respectively. The insets show the stress relaxation experiments for which time is plotted in logarithmic scale to show the inflection points corresponding to the relaxation times. The parameters for (b) are: ke = k = 7.5 N/m, c = 5.0 × 10−5 N·s/m. The parameters for (d) and (f) are: ke = 20 N/m, k1 = 10 N/m, k2 = 5 N/m, c1 = 1.0 × 10−5 N·s/m, c2 =10.0 × 10−5 N·s/m.