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Thermally stressed thermoelectric microbeam supported by Winkler foundation via the modified Moore-Gibson-Thompson thermoelasticity theory

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WILEY-V C H VERLAG GMBH
DOI: 10.1002/zamm.202300079

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This article presents the first investigation of the thermoelectric vibration of microscale Euler-Bernoulli beams resting on an elastic Winkler base. The system of equations for thermoelastic microbeams was developed using elastic basis theory and the generalized Moore-Gibson-Thompson (MGT) thermal transport framework. The effects of different inputs on mechanical fields were analyzed and it was found that an increase in the Winkler modulus and shear modulus of the foundation decreased the deflection and axial deformation in the microbeams.
This article offers the first investigation into the thermoelectric vibration of microscale Euler-Bernoulli beams resting on an elastic Winkler base. We developed the system of equations for thermoelastic microbeams using elastic basis theory and the generalized Moore-Gibson-Thompson (MGT) thermal transport framework with a single-phase delay. At the front of the microbeam, a graphene strip connected to an electrical power source was employed to generate heat. In addition, the influence of an ultra-short-pulsed laser on the vibration of a microbeam is studied, taking into account its heating effect. The microbeam system variables were analyzed after solving the mathematical equations by applying the Laplace transform technique. Graphs showing how different inputs affect different mechanical fields, such as Winkler substrate stiffness, voltage, electrical resistance, and temperature modulus pulses, are also presented. An increase in the Winkler modulus and the shear modulus of the foundation was found to decrease the amount of deflection and axial deformation in the microbeams. The increased beam stiffness has resulted in this decrease.

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