Vibrations in piezothermoelastic micro-/nanobeam with voids utilizing modified couple stress theory

被引：0
|
作者：
Duhan, Arti [1 ]
Sahrawat, Ravinder Kumar [1 ]
Kumar, Krishan [1 ]
Kumar, Manjeet [2 ]
机构：
[1] Deenbandhu Chhotu Ram Univ Sci & Technol, Dept Math, Murthal 131039, India
[2] Dr B R Ambedkar Govt Coll, Dept Math, Dabwali, India
来源：
MECHANICS OF ADVANCED MATERIALS AND STRUCTURES | 2024年
关键词：
Piezothermoelastic beam; thermoelastic damping; modified couple stress; attenuation; INTERNAL-FRICTION; ELASTIC-MATERIALS; MIXTURES; WAVES;
D O I：
10.1080/15376494.2024.2385007
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The present study examines the vibrations in micro- and nano-piezothermoelastic beams with voids. In this work, the modified couple stress theory is employed to generate closed-form formulas for deflection, volume fraction, electric potential and temperature distribution. The effects of voids, modified couple stress, beam dimensions and electric potential on energy dissipation (thermoelastic damping) are examined for beams under various boundary conditions. We have established analytical formulas for frequency shift, attenuation and thermoelastic damping. MATLAB software is used to get numerical results and exhibit them visually.
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页数：14
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