Figure 5.

Statistics of mechanical strength and deformability of fibrin networks. The experimental histogram-based estimates and theoretical curves of the probability distribution of critical stress values for rupture of the fibrin network per multifiber thread p(σ), and the probability distribution of critical strains for rupture of the fibrin network p(ε) (the inset). The histograms and theoretical curves of p(σ) and p(ε) are displayed for fibrin networks with single edge crack in the α = 7–35% range of crack size. The histograms were obtained by combining n = 18 values of critical forces from 18 experimental stress-strain profiles (see Materials and Methods). The bin size selection was performed as described previously [39]. Theoretical curves of p(σ) and p(ε) were obtained using Eqs. (7) and Eq. (6), respectively, and values of parameters of the FS model from Table 2.