Time-dependent response of hydrogels under constrained swelling
作者： AD Drozdov , P Sommer-Larsen , J deClaville Christiansen , C-G Sanporean , None
DOI: 10.1063/1.4884615
关键词:
摘要: Constitutive equations are developed for the viscoplastic behavior of covalently cross-linked hydrogels subjected to swelling. The ability model describe time-dependent response is confirmed by comparison results simulation with observations on partially swollen poly(2-hydroxyethyl methacrylate) gel specimens in uniaxial tensile tests a constant strain rate and relaxation tests. stress–strain relations applied study kinetics unconstrained constrained following conclusions drawn from numerical analysis: (i) maximum water uptake under swelling hydrogel lower than that its elastic counterpart exceeds gel, (ii) when diffusion plastic flow polymer network, curves (mass versus time) gels constraints demonstrate characteristic features...
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