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An investigation into size‐dependent dynamic thermo‐electromechanical response of piezoelectric‐laminated sandwich smart nanocomposites
Author(s) -
Li Chenlin,
Tian Xiaogeng,
He Tianhu
Publication year - 2021
Publication title -
international journal of energy research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.808
H-Index - 95
eISSN - 1099-114X
pISSN - 0363-907X
DOI - 10.1002/er.6308
Subject(s) - piezoelectricity , materials science , energy harvesting , nanocomposite , smart material , composite material , thermal , piezoelectric sensor , vibration , mechanical engineering , energy (signal processing) , acoustics , engineering , physics , meteorology , quantum mechanics
Summary Nanoscale piezoelectric energy‐harvesting from ambient vibration sources has great potential for practical applications in powering nanoelectronic and nano‐wireless sensors. Nowadays, the piezoelectric laminated sandwich smart nanocomposites have been extensively applied as nanogenerators, nano‐energy harvesters, and the other nano‐electromechanical devices. However, no works have thoroughly investigated the size‐dependent dynamic thermo‐electromechanical response of such structure that consider the perfect/non‐idealized interfacial conditions and piezoelectric material constants ratios. This article will address this problem based on the size‐dependent piezoelectric thermoelasticity theory by a semi‐analytical technique via the Laplace transformation. If the thermal/elastic nonlocal parameters or material constants ratios are properly selected, the results show that: (a) the electrical energy harvesting and heat isolation can be maximally improved; (b) the harmful thermal stresses will be lowered to some extent. This work not only provides a thorough and comprehensive understanding on response of piezoelectric laminated sandwich smart nanocomposites serving in non‐uniform thermal environment, but also offers basic guidelines for its thermal management and piezoelectric energy harvesting.