We describe swelling-driven curving in originally straight and non-homogeneous beams. We present and verify a structural model of swollen beams, based on a new point of view adopted to describe swelling-induced deformation processes in bilayered gel beams, that is based on the split of the swelling-induced deformation of the beam at equilibrium into two components, both depending on the elastic properties of the gel. The method allows us to: (i) determine beam stretching and curving, once assigned the characteristics of the solvent bath and of the non-homogeneous beam, and (ii) estimate the characteristics of non-homogeneous flat gel beams in such a way as to obtain, under free-swelling conditions, three-dimensional shapes. The study was pursued by means of analytical, semi-analytical and numerical tools; excellent agreement of the outcomes of the different techniques was found, thus confirming the strength of the method.

Swelling-induced and controlled curving in layered gel beams / Lucantonio, Alessandro; Nardinocchi, Paola; Pezzulla, Matteo. - In: PROCEEDINGS OF THE ROYAL SOCIETY OF LONDON. SERIES A. - ISSN 1364-5021. - STAMPA. - 470:(2014), pp. 271-286. [10.1098/rspa.2014.0467]

Swelling-induced and controlled curving in layered gel beams

LUCANTONIO, ALESSANDRO;NARDINOCCHI, Paola;PEZZULLA, MATTEO
2014

Abstract

We describe swelling-driven curving in originally straight and non-homogeneous beams. We present and verify a structural model of swollen beams, based on a new point of view adopted to describe swelling-induced deformation processes in bilayered gel beams, that is based on the split of the swelling-induced deformation of the beam at equilibrium into two components, both depending on the elastic properties of the gel. The method allows us to: (i) determine beam stretching and curving, once assigned the characteristics of the solvent bath and of the non-homogeneous beam, and (ii) estimate the characteristics of non-homogeneous flat gel beams in such a way as to obtain, under free-swelling conditions, three-dimensional shapes. The study was pursued by means of analytical, semi-analytical and numerical tools; excellent agreement of the outcomes of the different techniques was found, thus confirming the strength of the method.
2014
swelling; bilayer beam; gels
01 Pubblicazione su rivista::01a Articolo in rivista
Swelling-induced and controlled curving in layered gel beams / Lucantonio, Alessandro; Nardinocchi, Paola; Pezzulla, Matteo. - In: PROCEEDINGS OF THE ROYAL SOCIETY OF LONDON. SERIES A. - ISSN 1364-5021. - STAMPA. - 470:(2014), pp. 271-286. [10.1098/rspa.2014.0467]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/618630
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