It has been demonstrated experimentally that pre-stretch affects the swelling of an elastomeric membrane when it is exposed to a solvent. We study theoretically the one-dimensional swelling of a pre-stretched thin elastomeric sheet, bonded to an impermeable rigid substrate, to quantify the influence of pre-stretch. We show that the solvent uptake increases when pre-stretch increases, both at equilibrium and during the swelling transient, where it exhibits two different scaling regimes. The coupling between the solvent uptake and pre-stretch may be practically exploited to design soft actuators where the swelling-induced deformations can be controlled by varying the pre-stretch.
|Titolo:||Swelling dynamics of a thin elastomeric sheet under uniaxial pre--stretch|
|Autori:||Lucantonio, A.; Nardinocchi, P.; Stone, H. A.|
|Rivista:||JOURNAL OF APPLIED PHYSICS|
|Data di pubblicazione:||2014|
|Digital Object Identifier (DOI):||10.1063/1.4866576|
|Appare nelle tipologie:||1.1 Journal article|