Smart Structures and Systems

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Pyroeffects on Magneto-Electro-Elastic Sensor patch subjected to thermal load

  • Kondaiah, P. (Department of Mechanical Engineering, School of Engineering Science, Mahindra Ecole Centrale) ;
  • Shankar, K. (Machine Design Section, Department of Mechanical Engineering, Indian Institute of Technology Madras)
  • Received : 2016.02.29
  • Accepted : 2016.07.14
  • Published : 2017.03.25
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Abstract

The magneto-electro-elastic (MEE) material under thermal environment exhibits pyroelectric and pyromagnetic coefficients resulting in pyroelectric and pyromagnetic effects. The pyroelectric and pyromagnetic effects on the behavior of multiphase MEE sensors bonded on top surface of a mild steel beam under thermal environment is presented in this paper. The aim of the study is to find out how samples having different volume fractions of the multiphase MEE composite behave in sensor applications. This is studied at optimal location on the beam, where the maximum electric and magnetic potentials are induced due to pyroelectric and pyromagnetic effects under clamped-free and clamped-clamped boundary conditions. The sensor which is bonded on the top surface of the beam is modeled using 8-node brick element. The MEE sensor bonded on mild steel beam is subjected to uniform temperature rise of 50K. It is assumed that beam and sensor is perfectly bonded to each other. The maximum pyroelectric and pyromagnetic effects on electric and magnetic potentials are observed when volume fraction is ${\nu}_f=0.2$. The boundary conditions significantly influence the pyroelectric and pyromagnetic effects on electric and magnetic potentials.

Keywords

References

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