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dc.contributorVirginia Tech. Center for Intelligent Material Systems and Structuresen_US
dc.contributor.authorChaudhry, Zaffiren_US
dc.contributor.authorLalande, Fredericen_US
dc.contributor.authorRogers, Craig A.en_US
dc.date.accessioned2015-05-14T14:51:12Z
dc.date.available2015-05-14T14:51:12Z
dc.date.issued1995-05-01
dc.identifier.citationChaudhry, Z., Lalande, F., & Rogers, C. A. (1995). Modeling of induced strain actuation of shell structures. Journal of the Acoustical Society of America, 97(5), 2872-2877. doi: 10.1121/1.411853
dc.identifier.issn0001-4966
dc.identifier.urihttp://hdl.handle.net/10919/52278
dc.description.abstractBased on the thin-shell Donnell theory, a model to represent the action of discrete induced strain actuator patches symmetrically bonded to the surface of a circular cylindrical shell has been developed. The model provides estimates of the bending curvatures due to the out-of-phase actuation and the in-plane strains due to the in-phase actuation of the bonded actuator patches. The magnitudes of the induced curvature and the in-plane strain are found to be identical to those of plates; however, due to the strain-displacement relations in cylindrical coordinates, the in-plane and out-of-plane displacements are coupled. Expressions for the equivalent forces and moments that represent the action of the actuator patches have been developed. Due to the curvature of the shell, the representation of the in-phase actuation with an equivalent in-plane line force applied along the edge of the actuator results in the application of erroneous rigid-body transverse forces. To avoid these rigid body forces, a method to represent the in-phase actuation with a system of self-equilibrating forces is proposed. The action of the actuator is then represented by an equivalent in-plane force and a transverse distributed pressure applied in the region of the actuator patch. Finite element verification of the proposed model is presented. The displacements due to the actual actuator actuation are compared with the proposed model, and very good agreement is found. Copyright 1995 Acoustical Society of America
dc.description.sponsorshipUnited States. Office of Naval Research - Grant No. ONR-N00014-92-J-1170
dc.format.extent6 pages
dc.format.mimetypeapplication/pdfen_US
dc.language.isoen_US
dc.publisherAcoustical Society of America
dc.subjectShell modelen_US
dc.subjectBendingen_US
dc.subjectFinite element methodsen_US
dc.subjectSurface strainsen_US
dc.subjectSurface structureen_US
dc.titleModeling of induced strain actuation of shell structuresen_US
dc.typeArticleen_US
dc.identifier.urlhttp://scitation.aip.org/content/asa/journal/jasa/97/5/10.1121/1.411853
dc.date.accessed2015-05-12
dc.title.serialJournal of the Acoustical Society of America
dc.identifier.doihttps://doi.org/10.1121/1.411853
dc.type.dcmitypeTexten_US


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