Generalized Thermopiezoelectricity with Memory-Dependent Derivative and Transient Thermoelectromechanical Responses Analysis

In this paper, a novel generalized thermoelastopiezoelectric model is established by introducing memory-dependent derivative, which might be superior to fractional ones: the form is unique, while the fractional-order theories have various expressions with different authors; it is more intuitionistic...

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Main Authors: Jianzhong Sun, Yaping Wu
Format: Article
Language:English
Published: Wiley 2021-01-01
Series:Advances in Materials Science and Engineering
Online Access:http://dx.doi.org/10.1155/2021/5809716
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author Jianzhong Sun
Yaping Wu
author_facet Jianzhong Sun
Yaping Wu
author_sort Jianzhong Sun
collection DOAJ
description In this paper, a novel generalized thermoelastopiezoelectric model is established by introducing memory-dependent derivative, which might be superior to fractional ones: the form is unique, while the fractional-order theories have various expressions with different authors; it is more intuitionistic for reflecting the memory effect; the physical meanings of the related memory-dependent differential equations are more clear, which are determined by the essence of their definitions; the time-delay and kernel function can be chosen freely based on the necessity of practical applications. The newly constructed model is applied to the transient shock analysis for piezoelectric medium under heating loads. Laplace transformation techniques are employed to solve the governing equations. In numerical implementation, the problem of a semi-infinite piezoelectric medium is considered under the two different cases. The transient responses, that is, temperature, displacement, stress, and electric potential, are illustrated graphically. The parametric studies are performed to analyze the effects of time-delay and kernel function on the transient thermoelastopiezoelectric responses. This work may provide a new approach to explore the transient responses’ behavior for piezoelectric materials serving in nonisothermal environment.
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spelling doaj-art-54f38db40303423ba707eb6f3b3fb6872025-02-03T06:47:02ZengWileyAdvances in Materials Science and Engineering1687-84341687-84422021-01-01202110.1155/2021/58097165809716Generalized Thermopiezoelectricity with Memory-Dependent Derivative and Transient Thermoelectromechanical Responses AnalysisJianzhong Sun0Yaping Wu1School of Civil Engineering, Lanzhou Jiaotong University, Lanzhou 730070, Gansu, ChinaSchool of Civil Engineering, Lanzhou Jiaotong University, Lanzhou 730070, Gansu, ChinaIn this paper, a novel generalized thermoelastopiezoelectric model is established by introducing memory-dependent derivative, which might be superior to fractional ones: the form is unique, while the fractional-order theories have various expressions with different authors; it is more intuitionistic for reflecting the memory effect; the physical meanings of the related memory-dependent differential equations are more clear, which are determined by the essence of their definitions; the time-delay and kernel function can be chosen freely based on the necessity of practical applications. The newly constructed model is applied to the transient shock analysis for piezoelectric medium under heating loads. Laplace transformation techniques are employed to solve the governing equations. In numerical implementation, the problem of a semi-infinite piezoelectric medium is considered under the two different cases. The transient responses, that is, temperature, displacement, stress, and electric potential, are illustrated graphically. The parametric studies are performed to analyze the effects of time-delay and kernel function on the transient thermoelastopiezoelectric responses. This work may provide a new approach to explore the transient responses’ behavior for piezoelectric materials serving in nonisothermal environment.http://dx.doi.org/10.1155/2021/5809716
spellingShingle Jianzhong Sun
Yaping Wu
Generalized Thermopiezoelectricity with Memory-Dependent Derivative and Transient Thermoelectromechanical Responses Analysis
Advances in Materials Science and Engineering
title Generalized Thermopiezoelectricity with Memory-Dependent Derivative and Transient Thermoelectromechanical Responses Analysis
title_full Generalized Thermopiezoelectricity with Memory-Dependent Derivative and Transient Thermoelectromechanical Responses Analysis
title_fullStr Generalized Thermopiezoelectricity with Memory-Dependent Derivative and Transient Thermoelectromechanical Responses Analysis
title_full_unstemmed Generalized Thermopiezoelectricity with Memory-Dependent Derivative and Transient Thermoelectromechanical Responses Analysis
title_short Generalized Thermopiezoelectricity with Memory-Dependent Derivative and Transient Thermoelectromechanical Responses Analysis
title_sort generalized thermopiezoelectricity with memory dependent derivative and transient thermoelectromechanical responses analysis
url http://dx.doi.org/10.1155/2021/5809716
work_keys_str_mv AT jianzhongsun generalizedthermopiezoelectricitywithmemorydependentderivativeandtransientthermoelectromechanicalresponsesanalysis
AT yapingwu generalizedthermopiezoelectricitywithmemorydependentderivativeandtransientthermoelectromechanicalresponsesanalysis