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A Generalized Model for Large Deformations of an Elastically Isotropic Material with Elastic-Inelastic Response

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Abstract

The objective of this classroom note is to propose a generalized model for a compressible elastically isotropic material with elastic-inelastic response. The model is generalized for an exponential Fung-type strain energy with a sum of new higher order elastic distortional deformation invariants that can model elastic-inelastic distortional deformation. In contrast with an Ogden-type model, the coefficients of the proposed higher order invariants do not affect the small deformation response. Moreover, there is no need to determine eigenvalues and eigenvectors of the elastic distortional deformation tensor. Examples show that the equations can model preconditioning of biological tissues as well as elastic instability.

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  1. Faculty of Mechanical Engineering, Technion-Israel Institute of Technology, 32000, Haifa, Israel

    M. B. Rubin

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  1. M. B. Rubin
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Rubin, M.B. A Generalized Model for Large Deformations of an Elastically Isotropic Material with Elastic-Inelastic Response. J Elast (2023). https://doi.org/10.1007/s10659-023-10036-7

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