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Strain gradient and Green–Naghdi-based thermoelastic wave propagation with energy dissipation in a Love–Bishop nanorod resonator under thermal shock loading.

Strain gradient and Green–Naghdi-based thermoelastic wave propagation with energy dissipation in a Love–Bishop nanorod resonator under thermal shock loading.

Authors :
Hosseini, Seyed Mahmoud
Source :
Waves in Random & Complex Media; Aug2024, Vol. 34 Issue 4, p2726-2749, 24p
Publication Year :
2024

Abstract

The thermoelastic wave propagation analysis is developed in a Love–Bishop nanorod resonator employing the strain gradient elasticity and Green–Naghdi theories with energy dissipation for the first time. The assumed nanorod resonator is subjected to thermal shock loading. The variational principle is applied to derive the coupled system of partial differential equations for temperature and displacement fields in a Love–Bishop nanorod. An analytical solution is proposed to solve the governing equations in Laplace domain. To obtain the temporal variation of fields' variables, a proper Laplace inversion technique is employed in the problem. The size effects in the nano-sized Love–Bishop rods are taken into account with five small-scale parameters including three higher-order materials length parameters, the micro-length inertia and thermal parameters. Two types of thermal shock loadings such as laser pulse-induced suddenly increasing temperature are utilized in this work, and the laser shock-induced thermoelastic wave propagations in both temperature and displacement fields are illustrated. The effects of the higher-order materials length parameters and the micro-length inertia and thermal parameters on the propagation of thermal and elastic waves are studied in detail. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
17455030
Volume :
34
Issue :
4
Database :
Complementary Index
Journal :
Waves in Random & Complex Media
Publication Type :
Academic Journal
Accession number :
178588094
Full Text :
https://doi.org/10.1080/17455030.2021.1967513