Fig. 2: Stress relaxation and viscoelasticity of hybrid networks. | Communications Physics

Fig. 2: Stress relaxation and viscoelasticity of hybrid networks.

From: Mechanical cooperation between time-dependent and covalent bonds in molecular damage of polymer networks

Fig. 2

a Storage modulus \({G}^{{\prime} }\) as a function of \(\bar{W}\) for networks with three levels of permanent bond fractions (black blue, and red corresponding to p = 0.42, 0.58, 0.7 respectively). The solid black lines correspond to fits predicted by Eq. (6). b Dissipated energy G″ as a function of \(\bar{W}\). Markers correspond to permanent bond fraction p identified in (a). c Log of the normalized stress \(\ln (\sigma /{\sigma }_{0})\) versus time for varying held stretch λm. Decay forces f0 = [0.0001; 0.0004; 0.004] are shown with triangles, squares, and circles respectively.

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