A multiscale model for anisotropic damage and hysteresis in biodegradable polymers

A multiscale model for anisotropic damage and hysteresis in biodegradable polymers

Vitucci Gennaro, De Tommasi Domenico, Di Stefano Salvatore, Puglisi Giuseppe, Trentadue Francesco

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Abstract. Predicting the mechanical response of biological soft materials requires an understanding of the complex phenomena characterizing their microscale. In this work, we use an existing versatile framework, based on assumptions on the statistical distribution of biolpolymers at the network scale, for extending our previous entropic constitutive model of Worm-Like Chains networks to different deformation classes. Furthermore, we include the effect of molecules topological constraints by introducing an energy term depending on the second invariant of the Green-Cauchy tensor. In this way we are able to qualitatively reproduce, with a limited set of physically meaningful constitutive parameters, a range of observed phenomena such as induced anisotropy, stress softening, hardening, Mullins effect, evolution of permanent stretches.

Mullins Effect, Multiscale Models, Microsphere Approach, Biodegradable Polymers

Published online 3/17/2022, 6 pages
Copyright © 2023 by the author(s)
Published under license by Materials Research Forum LLC., Millersville PA, USA

Citation: Vitucci Gennaro, De Tommasi Domenico, Di Stefano Salvatore, Puglisi Giuseppe, Trentadue Francesco, A multiscale model for anisotropic damage and hysteresis in biodegradable polymers, Materials Research Proceedings, Vol. 26, pp 41-46, 2023

DOI: https://doi.org/10.21741/9781644902431-7

The article was published as article 7 of the book Theoretical and Applied Mechanics

Content from this work may be used under the terms of the Creative Commons Attribution 3.0 license. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.

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