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dc.contributor.authorHarutyunyan, Sateniken_US
dc.date.accessioned2014-03-14T21:51:23Z
dc.date.available2014-03-14T21:51:23Z
dc.date.issued2006-11-30en_US
dc.identifier.otheretd-12132006-022128en_US
dc.identifier.urihttp://hdl.handle.net/10919/46199
dc.description.abstractThe stress-strain state of ferromagnetic plane with a moving crack has been investigated in this study. The model considers a soft magnetic ferroelastic body and incorporates a realistic (nonlinear) susceptibility. A moving crack is present in the body and is propagating in a direction perpendicular to the magnetic field. Assuming that the processes in the moving coordinates are stationary, a Fourier transform method is used to reduce the mixed boundary value problem to the solutions of a pair of dual integral equations yielding to a closed form solution. As a result of this investigation, the magnetoelastic stress intensity factor is obtained and its dependency upon the crack velocity, material constants and nonlinear law of magnetization are highlighted. It has been shown that stress result around the crack essentially depend on external magnetic field, speed of the moving crack, nonlinear law of magnetization, and other physical parameters. The results presented in this work show that when cracked ferromagnetic structure is under the influence of magnetic field it is necessary to take into account the interaction effects between deformation of the body and magnetic field and that such interaction can bring to a new conditions for strengthening the materials. Closed form solutions for the stress-strain state are obtained, graphical representations are supplied and conclusions and prospects for further developments are outlined.en_US
dc.publisherVirginia Techen_US
dc.relation.haspartSatenikThesis1.pdfen_US
dc.rightsI hereby certify that, if appropriate, I have obtained and attached hereto a written permission statement from the owner(s) of each third party copyrighted matter to be included in my thesis, dissertation, or project report, allowing distribution as specified below. I certify that the version I submitted is the same as that approved by my advisory committee. I hereby grant to Virginia Tech or its agents the non-exclusive license to archive and make accessible, under the conditions specified below, my thesis, dissertation, or project report in whole or in part in all forms of media, now or hereafter known. I retain all other ownership rights to the copyright of the thesis, dissertation or project report. I also retain the right to use in future works (such as articles or books) all or part of this thesis, dissertation, or project report.en_US
dc.subjectFerromagneticen_US
dc.subjectCracken_US
dc.subjectNonlinear Law of Magnetizationen_US
dc.subjectMagnetoelasticityen_US
dc.titleMagneto-Elastic Interactions in a Cracked Ferromagnetic Bodyen_US
dc.typeThesisen_US
dc.contributor.departmentMaterials Science and Engineeringen_US
dc.description.degreeMaster of Scienceen_US
thesis.degree.nameMaster of Scienceen_US
thesis.degree.levelmastersen_US
thesis.degree.grantorVirginia Polytechnic Institute and State Universityen_US
thesis.degree.disciplineMaterials Science and Engineeringen_US
dc.contributor.committeechairReynolds, William T. Jr.en_US
dc.contributor.committeememberHasanyan, Davreshen_US
dc.contributor.committeememberWang, Yuen_US
dc.identifier.sourceurlhttp://scholar.lib.vt.edu/theses/available/etd-12132006-022128/en_US
dc.date.sdate2006-12-13en_US
dc.date.rdate2007-01-12
dc.date.adate2007-01-12en_US


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