Design of photothermal triggered bilayer morphing composites

J.A. Aguilar-Tadeo, S. Lyu, C. Soutis, J.J. Blaker, M. Gresil

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review


This study presents finite element method (FEM) modelling of a bilayered shape-morphing composite, triggered by photo-thermal stimulus. The bilayer consists of an upper-layer of reduced graphene oxide (rGO) reinforced chitosan-methacrylamide (rGO-chitosanMA) and a lower-layer of polydimethylsiloxane (PDMS). The FEM model is experimentally validated and exploited in two case studies that predict shape-morphing for various thickness ratios of upper- to lower-layer. Case one is a parametric study of a bilayer with constant thickness, where the upper-layer thickness is varying from 1 to 99% of the total thickness. In case 2 the upper-layer thickness varies from 1 to 20 µm increasing by 1 µm, while the lower ply thickness varies from 50 to 100 µm increasing by 2 µm. The results describe the shape-morphing trend of the bilayered composite when the upper- to lower-layer thickness ratio changes, and demonstrate a method of designing composite bilayers with triggered and predictable morphing response with potential applications in soft robotics and artificial muscles. © 2019 International Committee on Composite Materials. All rights reserved.
Original languageEnglish
Title of host publicationICCM International Conferences on Composite Materials
Publication statusPublished - 2019


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