نتایج جستجو برای: magneto thermo elastic stress

تعداد نتایج: 521852  

2017
Mohamed I. A. Othman

The model of the equations of generalized magneto-thermoelasticity in an isotropic elastic medium with two–temperature under the effect initial stress is established. The entire elastic medium is rotated with a uniform angular velocity. The formulation is applied under three theories of generalized thermoelasticity: Lord–Shulman, Green–Lindsay, as well as the coupled theory. The Harmonic functi...

J Rexy R Kumar, R Selvamani,

This study investigates that the sound wave propagation of multiferroic thermo elastic Nanofibers under the influence of surface effect and parametric excitation via Timoshenko form of beam equations. The equation of analytical model is obtained for Nanofiber through shear and rotation effect. The solution of the problem is reached through the coupled time harmonic equations in flexural directi...

2008
Dirk Sander Zhen Tian Jürgen Kirschner

We review the application of cantilever-based stress measurements in surface science and magnetism. The application of thin (thickness appr. 0.1 mm) single crystalline substrates as cantilevers has been used successfully to measure adsorbate-induced surface stress changes, lattice misfit induced film stress, and magneto-elastic stress of ferromagnetic monolayers. Surface stress changes as small...

2016
Sheng-Hu Ding Xing Li

In this paper, plane thermo-elastic solutions are presented for the problem of a crack in two bonded homogeneous orthotropic media with a graded interfacial zone. The graded interfacial zone is treated as a nonhomogeneous interlayer having spatially varying thermo-elastic moduli between dissimilar, homogeneous orthotropic half-planes, which is assumed to vary exponentially in the direction perp...

Journal: :journal of solid mechanics 0
a amiri mechanical engineering department, urmia university, urmia, iran g rezazadeh mechanical engineering department, urmia university, urmia, iran r shabani mechanical engineering department, urmia university, urmia, iran a khanchehgardan mechanical engineering department, urmia university, urmia, iran

in this paper, the stability of a functionally graded magneto-electro-elastic (fg-mee) micro-beam under actuation of electrostatic pressure is studied. for this purpose euler-bernoulli beam theory and constitutive relations for magneto-electro-elastic (mee) materials have been used. we have supposed that material properties vary exponentially along the thickness direction of the micro-beam. gov...

G. Infant Sujitha R Selvamani,

In this article, the influence of hydrostatic stress and gravity on a clamped- free non homogeneous magneto electro elastic plate of polygonal cross sections is studied using linear theory of elasticity. The equations of motion based on two-dimensional theory of elasticity are applied under the plane strain assumption of prestressed and gravitated magneto electro elastic plate of polygonal cros...

Journal: :Computers & Mathematics with Applications 2015
Julián Bravo-Castillero Lázaro M. Sixto-Camacho Renald Brenner Raúl Guinovart-Díaz Leslie D. Pérez-Fernández Reinaldo Rodríguez-Ramos Federico J. Sabina

Two-phase periodic thermo-magneto-electro-elastic composites are considered. The composite materials consisting of identical parallel cylindrical fibers periodically distributed in a matrix. Both constituents are transversely isotropic and the unit-cell has rhomboidal shape. Based on the asymptotic homogenization method, exact relations involving the in-plane effective coefficients are derived ...

Javad Jafari Fesharaki, Sa’id Golabi Seyed Ghasem Madani

This research develops thermo-elastic analysis of a functionally graded cylinder under thermo-mechanical loadings. Heat conduction equation in cylindrical coordinate system is solved. Thermal conductivity coefficient is graded along the radial direction. By considering a symmetric distribution of temperature, loading and boundary conditions, strain-displacement and stress-strain relations can b...

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