A predictive theoretical model for stretch-induced instabilities in liquid crystal elastomers

• Published in: Liquid crystals Vol. 50; no. 7-10; pp. 1426 - 1438
• Main Authors: Mihai, L. Angela, Raistrick, Thomas, Gleeson, Helen F., Mistry, Devesh, Goriely, Alain
• Format: Journal Article
• Language: English
• Published: Abingdon Taylor & Francis 09.08.2023; Taylor & Francis Ltd
• Subjects: auxeticity; Elastomers; Freedericksz transitions; large strain deformation; Liquid crystal elastomer; Liquid crystals; mathematical modelling; Mathematical models; non-linear elasticity; Order parameters; shear striping

Following the experimental lead, we construct a general mathematical model which, depending on whether the uniaxial scalar order parameter is constant or not, can predict either the classical shear striping instability or the molecular auxetic response and mechanical Fréedericksz transition observed...