Thermoelastic dynamics of viscoelastic nanobeams on elastic foundations under multi-physics interactions
This study provides a theoretical analysis of the thermoelastic and dynamic behavior of viscoelastic nanobeams on an elastic Winkler foundation. The nanobeam is exposed to axial mechanical loads, periodic thermal fluctuations, and pulsed laser heating, creating a multiphysics scenario. A nonlocal fr...
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| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2025-09-01
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| Series: | Results in Engineering |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2590123025022261 |
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| Summary: | This study provides a theoretical analysis of the thermoelastic and dynamic behavior of viscoelastic nanobeams on an elastic Winkler foundation. The nanobeam is exposed to axial mechanical loads, periodic thermal fluctuations, and pulsed laser heating, creating a multiphysics scenario. A nonlocal framework based on a modified Klein-Gordon equation captures spatial and temporal nonlocal effects. The dual-phase-lag (DPL) heat conduction model is employed to account for finite-speed thermal propagation by introducing phase lags for heat flux and temperature gradients, overcoming limitations of classical heat conduction theories. The Kelvin-Voigt viscoelastic model is used to describe material damping, essential for vibration control. Numerical simulations investigate the influence of Winkler foundation stiffness, nonlocal parameters, and damping coefficients on deflection and thermal response. Comparative studies validate the model’s accuracy in capturing coupled thermoelastic-viscoelastic behavior, providing insights into nanoscale dynamics and guiding the design of advanced materials and nanotechnology systems under complex conditions. |
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| ISSN: | 2590-1230 |