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摘要:
The effects of different parameters on the nonlinear dynamic characteristics of macrofiber composite (MFC) microsheet with graphene (GP) skin under non-uniform thermal field are investigated. Firstly, the physical parameters of the MFC-GP structure are calculated by the mixing rule, and the constitutive equations of the structure are set up by employing the Eringen theory. The nonlinear dynamic equations of the microsheet are obtained by using Hamilton's principle. Then, the heat conduction equations of the microsheet are considered, adopting Green and Naghdi's generalized thermoelasticity theory. According to the Galerkin weighted residual method, the thermoelasticity coupling equations of the structure are obtained. Meanwhile, the influence of the positive piezoelectric effect of GP and MFC on the vibration response of the structure is also investigated. The nonlinear dynamic governing equations including displacement, coupled thermoelasticity, and electricity field are discretized by the Galerkin method. The effects of non-local parameter, volume fraction of GP, and thermal and electricity coupling coefficients on structural dynamic behavior are discussed in the numerical simulation.
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来源 :
ACTA MECHANICA SOLIDA SINICA
ISSN: 0894-9166
年份: 2020
期: 5
卷: 33
页码: 707-718
2 . 2 0 0
JCR@2022
ESI学科: ENGINEERING;
ESI高被引阀值:115
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