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Abstract: We propose a physical model for the nonlinear inelastic mechanics of stickybiopolymer networks with potential applications to inelastic cell mechanics. Itconsists in a minimal extension of the glassy wormlike chain GWLC model,which has recently been highly successful as a quantitative mathematicaldescription of the viscoelastic properties of biopolymer networks and cells. Toextend its scope to nonequilibrium situations, where the thermodynamic statevariables may evolve dynamically, the GWLC is furnished with an explicitrepresentation of the kinetics of breaking and reforming sticky bonds. In spiteof its simplicity the model exhibits many experimentally establishednon-trivial features such as power-law rheology, stress stiffening,fluidization, and cyclic softening effects.



Autor: Lars Wolff, Pablo Fernandez, Klaus Kroy

Fuente: https://arxiv.org/







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