Is there only one equilibrium configuration for spontaneous bending of liquid crystal elastomer circular plates with free edges?

Autor:	B. L. Wang, K. F. Wang
Rok vydání:	2021
Předmět:	Materials science Biophysics Surfaces and Interfaces General Chemistry Bending Critical value Potential energy Physics::Fluid Dynamics Light intensity Liquid crystal General Materials Science Soft matter Deformation (engineering) Composite material Anisotropy Biotechnology
Zdroj:	The European Physical Journal E. 44
ISSN:	1292-895X 1292-8941
DOI:	10.1140/epje/s10189-021-00126-6
Popis:	In this paper, the spontaneous bending of a liquid crystal elastomer (LCE) circular plate under light illumination is investigated. The large bending deformation configurations for the LCE circular plate with free edges are obtained by minimizing the potential energy. It is found that for an LCE circular plate with random distribution of liquid crystal molecules, if the light intensity is small, there is only one equilibrium configuration for bending of the LCE circular plate. However, when the light intensity reaches a critical value, the circular plate will buckle and there will be three possible equilibrium configurations. On the other hand, for an LCE circular plate with uniform orientation of liquid crystal molecules, the strain induced by light is anisotropic, and there is only one equilibrium configuration. In addition, bending shapes of the LCE circular plate depend on its thickness. These results may be useful for designing light-driven LCE devices.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::039e64f8cdfa06d18aba57358feddbba https://doi.org/10.1140/epje/s10189-021-00126-6 Zobrazit plný text záznamu Full text from SpringerLink