“…Phenomenological models of polymers are commonly used to describe viscoelastic, viscoplastic, and softening behaviour [43][44][45][46]. These models often use combinations of Hookean springs and Newtonian dashpots to describe the empirical behaviour [46][47][48][49][50]. A simple model, Figure 11, is proposed here and calibrated using thermo-mechanical data as well as compression tests.…”