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Magnetoelectroelastic
response of functionally graded multiferroic coatings under
moving Hertzian contact
Selim E. Toktaş and Serkan Dag |
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Vol. 19 (2024), No. 3, 343–371
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Abstract |
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A multilayer approach is developed to solve the moving Hertzian contact problem involving a circular punch and a functionally graded multiferroic coating. The mathematical model constructed consists of arbitrary numbers of multiferroic layers and elastic interlayers, and a half-plane substrate. The formulation is based on wave equations of plane elastodynamics and Maxwell’s equations. The problem is reduced to a singular integral equation by applying Galilean and Fourier transformations. The integral equation is solved numerically through an expansion-collocation technique. A convergence analysis is performed to determine the number of homogeneous multiferroic layers required to simulate the behavior of functionally graded coatings. Presented parametric analyses illustrate the influences of coating type, punch speed, kinetic friction coefficient, and coating thickness upon contact stresses, electric displacement, magnetic induction, and the required contact force. Magnetoelectricity of the system is shown to be significantly coupled with mechanical parameters such as the kinetic friction coefficient and coating thickness. |
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Keywords
functionally graded multiferroic coatings, multilayer
approach, moving Hertzian contact, singular integral
equations
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Milestones
Received: 14 April 2023
Revised: 2 November 2023
Accepted: 30 December 2023
Published: 27 March 2024
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Authors |
| Selim E. Toktaş | |
| Department of Mechanical
Engineering Middle East Technical University Ankara Turkey |
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| Serkan Dag | |
| Department of Mechanical
Engineering Middle East Technical University Ankara Turkey |
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| © 2024 MSP (Mathematical Sciences Publishers). |
