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Nesbit W. Hagood IV. Harper, John E. (John Edward), 1973- Massachusetts Institute of Technology. Department of Aeronautics and Astronautics 2009-12-10T19:08:52Z 2009-12-10T19:08:52Z 1999 1999 http://hdl.handle.net/1721.1/50076 43583820 Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Aeronautics and Astronautics, 1999. Includes bibliographical references (p. 135-137). This thesis presents the nonlinear theory for large deformation electroelastic continua with electric conduction. This theory is suitable for modeling actuator and sensor devices composed of deformable, electromechanically coupled, highly insulating materials. Consistency is proven between the large deformation theory and the classical Poynting vector based piezoelectric small deformation theory, extended for electric conduction. A result is that electric body forces, realized mathematically as electric surface tractions, are retained in the small deformation approximation. A finite element formulation is presented suitable for performance analysis of deformable electromechanical actuator and sensor devices composed of highly insulating materials with nonlinear response functions, under the small deformation approximation. Results demonstrate the significant cumulative effects of a weak electric current flow for electric voltage DC offset loading of a highly electrically insulating composite device. by John E. Harper. S.M. 137 p. eng Massachusetts Institute of Technology M.I.T. theses are protected by copyright. They may be viewed from this source for any purpose, but reproduction or distribution in any format is prohibited without written permission. See provided URL for inquiries about permission. http://dspace.mit.edu/handle/1721.1/7582 Aeronautics and Astronautics Analysis of nonlinear electroelastic continua with electric conduction Thesis application/pdf false Publication unknown unknown <Publication xmlns="https://www.openaire.eu/cerif-profile/1.1/" id="a371bc79-4ac1-45d2-8561-ae0a078b9e53"> <Type xmlns="https://www.openaire.eu/cerif-profile/vocab/COAR_Publication_Types">http://purl.org/coar/resource_type/c_1843</Type> <Language>eng</Language> <Title>Analysis of nonlinear electroelastic continua with electric conduction</Title> <PublishedIn> <Publication> </Publication> </PublishedIn> <PublicationDate>1999</PublicationDate> <Authors> <Author> <DisplayName>Harper, John E. (John Edward), 1973-</DisplayName> <Affiliation> <OrgUnit> </OrgUnit> </Affiliation> </Author> </Authors> <Editors> </Editors> <Publishers> <Publisher> <DisplayName>Massachusetts Institute of Technology</DisplayName> <OrgUnit /> </Publisher> </Publishers> <License>http://dspace.mit.edu/handle/1721.1/7582</License> <Keyword>Aeronautics and Astronautics</Keyword> <Abstract>This thesis presents the nonlinear theory for large deformation electroelastic continua with electric conduction. This theory is suitable for modeling actuator and sensor devices composed of deformable, electromechanically coupled, highly insulating materials. Consistency is proven between the large deformation theory and the classical Poynting vector based piezoelectric small deformation theory, extended for electric conduction. A result is that electric body forces, realized mathematically as electric surface tractions, are retained in the small deformation approximation. A finite element formulation is presented suitable for performance analysis of deformable electromechanical actuator and sensor devices composed of highly insulating materials with nonlinear response functions, under the small deformation approximation. Results demonstrate the significant cumulative effects of a weak electric current flow for electric voltage DC offset loading of a highly electrically insulating composite device.</Abstract> <Access xmlns="http://purl.org/coar/access_right" > </Access> </Publication>