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http://dx.doi.org/10.12989/csm.2013.2.1.001

Pyroelectric and pyromagnetic effects on behavior of magneto-electro-elastic plate  

Kondaiah, P. (Machine Design Section, Department of Mechanical Engineering, Indian Institute of Technology Madras)
Shankar, K. (Machine Design Section, Department of Mechanical Engineering, Indian Institute of Technology Madras)
Ganesan, N. (Machine Design Section, Department of Mechanical Engineering, Indian Institute of Technology Madras)
Publication Information
Coupled systems mechanics / v.2, no.1, 2013 , pp. 1-22 More about this Journal
Abstract
Under thermal environment, Magneto-Electro-Elastic (MEE) material exhibits pyroelectric and pyromagnetic effects which can be used for enhancing the performance of MEE sensors. Recently studies have been published on material constants such as pyroelectric constant and pyromagnetic constant for magneto-electro-thermo-elastic smart composite. Hence, the main aim of this paper is to study the pyroelectric and pyromagnetic effects on behavior of MEE plate under different boundary conditions subjected to uniform temperature. A numerical study is carried out using eight noded brick finite element under uniform temperature rise of 100 K. The study focused on the pyroelectric and pyromagnetic effects on system parameters like displacements, thermal stresses, electric potential, magnetic potential, electric displacements and magnetic flux densities. It is found that, there is a significant increase in electric potential due to the pyroelectric and pyromagnetic effects. These effects are visible on electric and magnetic potentials when CFFC and FCFC boundary conditions are applied. Additionally, the pyroelectric and pyromagnetic effects at free edge is dominant (nearly thrice the value in CFFC in comparison with FCFC) than at middle of the plate. This study is a significant contribution to sensor applications.
Keywords
magneto-electro-elastic sensor; pyroelectric; pyromagnetic; finite element;
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