Elasticity formulation for motion equations of couple stress based micro-rotating disks with varying speeds
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Emadoddin Bagheri [1] ; Mohsen Asghari [1]
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[1] Sharif University of Technology
Sharif University of Technology
Irán
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- Localización: Mechanics based design of structures and machines, ISSN 1539-7734, Vol. 49, Nº. 1, 2021, págs. 1-19
- Idioma: inglés
- Texto completo no disponible (Saber más ...)
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Resumen
The elasticity formulation for equations of motion of micro-rotating disks in the presence of angular acceleration as well as the corresponding boundary conditions are developed based on the non-classical continuum theory of couple stress. The system of the boundary value problem is derived on the basis of the variational method. Analytical elasticity solutions to the system of equations are then provided. Based on the elasticity solution, the mechanical responses, including the displacement and stress fields, for varying-speed micro-rotating disks are studied. In a numerical case study, the effect of the couple stresses on the distribution of stress and displacement components are investigated.
