Flexible matrix composite actuators

Research output: Chapter in Book/Report/Conference proceedingConference contribution

8 Scopus citations

Abstract

Flexible matrix composites (FMCs) consist of highly extensible, flexible elastomers reinforced by relatively inextensible, stiff fibers. FMCs are particularly promising materials for large structural deformation applications. One possible application is to use FMCs to construct cylindrical, pressure driven actuators. These cylindrical FMC actuators demonstrate various actuation behaviors (extending, contracting, and twisting) when pressurized, depending on the lamination configuration of the membrane. Special interest is given to the contracting type actuator because of the mechanical advantage it provides, and its analogy to muscle function. By using a continuum mechanics approach, a finite axisymmetric deformation model is developed to model the behavior of contracting type FMC actuators during pressurization. This model combines large deformation membrane theory and large deformation theory for laminated composites and is capable of including material nonlinearity and geometric nonlinearity that arise from large deformation and fiber reorientation. The behavior of FMC actuators under various loading conditions are discussed based on the proposed model. Methods to integrate multiple FMC actuators to build interesting active structures are proposed. A finite element model is used to predict the morphing behavior of a plate-shaped active structure for small deformations.

Original languageEnglish (US)
Title of host publication20th Technical Conference of the American Society for Composites 2005
Pages1712-1731
Number of pages20
StatePublished - Dec 1 2005
Event20th Technical Conference of the American Society for Composites 2005 - Philadelphia, PA, United States
Duration: Sep 7 2005Sep 9 2005

Publication series

Name20th Technical Conference of the American Society for Composites 2005
Volume3

Other

Other20th Technical Conference of the American Society for Composites 2005
CountryUnited States
CityPhiladelphia, PA
Period9/7/059/9/05

All Science Journal Classification (ASJC) codes

  • Ceramics and Composites

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  • Cite this

    Shan, Y., & Bakis, C. E. (2005). Flexible matrix composite actuators. In 20th Technical Conference of the American Society for Composites 2005 (pp. 1712-1731). (20th Technical Conference of the American Society for Composites 2005; Vol. 3).