ArticlePhilosophical transactions. Series A, Mathematical, physical, and engineering sciences2022
A mathematical model for the auxetic response of liquid crystal elastomers.
Article in Philosophical transactions. Series A, Mathematical, physical, and engineering sciences, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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1 citing paper in PubMed, 19 citations in OpenAlex.
- The Ogden model of rubber mechanics: 50 years of impact on nonlinear elasticity.Philosophical transactions. Series A, Mathematical, physical, and engineering sciences · 2022Article
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5 authors at 3 institutions in 1 country.
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Abstract
We develop a mathematical model that builds on the surprising nonlinear mechanical response observed in recent experiments on nematic liquid crystal elastomers. Namely, under uniaxial tensile loads, the material, rather than thinning in the perpendicular directions, becomes thicker in one direction for a sufficiently large strain, while its volume remains unchanged. Motivated by this unusual large-strain auxetic behaviour, we model the material using an Ogden-type strain-energy function and calibrate its parameters to available datasets. We show that Ogden strain-energy functions are particularly suitable for modelling nematic elastomers because of their mathematical simplicity and their clear formulation in terms of the principal stretches, which have a direct kinematic interpretation. This article is part of the theme issue 'The Ogden model of rubber mechanics: Fifty years of impact on nonlinear elasticity'.
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