Fully anisotropic finite strain viscoelasticity based on a reverse multiplicative decomposition and logarithmic strains
[EN] In this paper we present a novel formulation for phenomenological anisotropic finite visco-hyperelasticity. The formulation is based on a multiplicative decomposition of the equilibrated deformation gradient into nonequilibrated elastic and viscous contributions. The proposal in this paper is a...
| Autores: | , |
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| Formato: | artículo |
| Fecha de publicación: | 2016 |
| País: | España |
| Recursos: | Universitat Politècnica de València (UPV) |
| Repositorio: | RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia |
| Idioma: | inglés |
| OAI Identifier: | oai:riunet.upv.es:10251/191442 |
| Acesso em linha: | https://riunet.upv.es/handle/10251/191442 |
| Access Level: | acceso abierto |
| Palavra-chave: | Viscoelasticity Hyperelasticity Logarithmic strains Anisotropy Polymers Biological tissues 03.- Garantizar una vida saludable y promover el bienestar para todos y todas en todas las edades |
| Resumo: | [EN] In this paper we present a novel formulation for phenomenological anisotropic finite visco-hyperelasticity. The formulation is based on a multiplicative decomposition of the equilibrated deformation gradient into nonequilibrated elastic and viscous contributions. The proposal in this paper is a decomposition reversed respect to that from Sidoroff allowing for anisotropic viscous contributions. Independent anisotropic stored energies are employed for equilibrated and non-equilibrated parts. The formulation uses logarithmic strain measures in order to be teamed with spline-based hyperelasticity. Some examples compare the results with formulations that use the Sidoroff decomposition and also show the enhanced capabilities of the present model. (C) 2015 Elsevier Ltd. All rights reserved. |
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