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dc.contributor.advisorLagoudas, Dimitris C.en_US
dc.creatorLee, Jae Sangen_US
dc.date.accessioned2005-02-17T21:01:47Z
dc.date.available2005-02-17T21:01:47Z
dc.date.created2003-12en_US
dc.date.issued2005-02-17
dc.identifier.urihttp://hdl.handle.net/1969.1/1448
dc.description.abstractCoupling between the electric field, magnetic field, and strain of composite materials is achieved when electro-elastic (piezoelectric) and magneto-elastic (piezomagnetic) particles are joined by an elastic matrix. Although the matrix is neither piezoelectric nor piezomagnetic, the strain field in the matrix couples the E field of the piezoelectric phase to the B field of the piezomagnetic phase. This three-phase electro-magneto-elastic composite should have greater ductility and formability than a two-phase composite in which E and B are coupled by directly bonding two ceramic materials with no compliant matrix. A finite element analysis and homogenization of a representative volume element is performed to determine the effective electric, magnetic, mechanical, and coupled-field properties of an elastic (epoxy) matrix reinforced with piezoelectric and piezomagnetic fibers as functions of the phase volume fractions, the fiber (or particle) shapes, the fiber arrangements in the unit cell, and the fiber material properties with special emphasis on the symmetry properties of the fibers and the poling directions of the piezoelectric and piezomagnetic fibers. The effective magnetoelectric moduli of this three-phase composite are, however, less than the effective magnetoelectric coefficients of a two-phase piezoelectric/piezomagnetic composite, because the epoxy matrix is not stiff enough to transfer significant strains between the piezomagnetic and piezoelectric fibers.en_US
dc.format.extent1145400 bytes
dc.format.mediumelectronicen_US
dc.format.mimetypeapplication/pdf
dc.language.isoen_USen_US
dc.publisherTexas A&M Universityen_US
dc.subjectmagnetoelectricen_US
dc.subjectpiezomagneticen_US
dc.subjectpiezoelectricen_US
dc.subjectmultifunctional materialen_US
dc.subjecteffective propertyen_US
dc.subjectthree phaseen_US
dc.titleEffective properties of three-phase electro-magneto-elastic multifunctional composite materialsen_US
dc.typeBooken
dc.typeThesisen
thesis.degree.departmentAerospace Engineeringen_US
thesis.degree.disciplineAerospace Engineeringen_US
thesis.degree.grantorTexas A&M Universityen_US
thesis.degree.nameMaster of Scienceen_US
thesis.degree.levelMastersen_US
dc.contributor.committeeMemberBoyd, James G., IVen_US
dc.contributor.committeeMemberMorgan, Rogeren_US
dc.type.genreElectronic Thesisen_US
dc.type.materialtexten_US
dc.format.digitalOriginborn digitalen_US


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