The Experts below are selected from a list of 360 Experts worldwide ranked by ideXlab platform

Liaoliang Ke - One of the best experts on this subject based on the ideXlab platform.

  • thermo electro Mechanical Vibration of size dependent piezoelectric cylindrical nanoshells under various boundary conditions
    Composite Structures, 2014
    Co-Authors: Liaoliang Ke, Yanfeng Wang, J N Reddy
    Abstract:

    Abstract Thermo-electro-Mechanical Vibration of piezoelectric cylindrical nanoshells is studied using the nonlocal theory and Love’s thin shell theory. The governing equations and boundary conditions are derived using Hamilton’s principle. An analytical solution is first given for the simply supported piezoelectric nanoshell by representing displacement components in the double Fourier series. Then, the differential quadrature (DQ) method is employed to obtain numerical solutions of piezoelectric nanoshells under various boundary conditions. The influence of the nonlocal parameter, temperature rise, external electric voltage, radius-to-thickness ratio and length-to-radius ratio on natural frequencies of piezoelectric nanoshells are discussed in detail. It is found that the nonlocal effect and thermoelectric loading have a significant effect on natural frequencies of piezoelectric nanoshells.

  • thermo electro Mechanical Vibration of piezoelectric nanoplates based on the nonlocal theory
    Composite Structures, 2013
    Co-Authors: Liaoliang Ke, Yue-sheng Wang, Jie Yang, Sritawat Kitipornchai
    Abstract:

    This paper mainly studies the thermo-electro-Mechanical free Vibration of piezoelectric nanoplates based the nonlocal theory and Kirchhoff theory. It is assumed that the piezoelectric nanoplate is a simply supported rectangular plate, and subjected to a biaxial force, an external electric voltage and a uniform temperature change. The governing equations and boundary conditions are derived by using the Hamilton's principle, which are then solved analytically to obtain the natural frequencies of the piezoelectric nanoplate. A detailed parametric study is conducted to discuss the influences of the nonlocal parameter, axial force, external electric voltage and temperature change on the thermo-electro-Mechanical Vibration characteristics of piezoelectric nanoplates.

  • thermoelectric Mechanical Vibration of piezoelectric nanobeams based on the nonlocal theory
    Smart Materials and Structures, 2012
    Co-Authors: Liaoliang Ke, Yue-sheng Wang
    Abstract:

    Thermoelectric-Mechanical Vibration of the piezoelectric nanobeams is first investigated in this paper based on the nonlocal theory and Timoshenko beam theory. The governing equations and boundary conditions are derived by using the Hamilton principle. The differential quadrature (DQ) method is employed to determine the natural frequencies of the piezoelectric nanobeams with different boundary conditions. The influences of the nonlocal parameter, temperature change, external electric voltage and axial force on the thermoelectric-Mechanical Vibration characteristics of the piezoelectric nanobeams are discussed in detail. It is found that the nonlocal effect is significant for the natural frequencies of the nanobeams. This study also reveals that the natural frequencies of the nanobeams are quite sensitive to the thermoelectric-Mechanical loadings. The results should be relevant to the design and application of the piezoelectric nanodevices.

Sritawat Kitipornchai - One of the best experts on this subject based on the ideXlab platform.

  • thermo electro Mechanical Vibration of piezoelectric nanoplates based on the nonlocal theory
    Composite Structures, 2013
    Co-Authors: Liaoliang Ke, Yue-sheng Wang, Jie Yang, Sritawat Kitipornchai
    Abstract:

    This paper mainly studies the thermo-electro-Mechanical free Vibration of piezoelectric nanoplates based the nonlocal theory and Kirchhoff theory. It is assumed that the piezoelectric nanoplate is a simply supported rectangular plate, and subjected to a biaxial force, an external electric voltage and a uniform temperature change. The governing equations and boundary conditions are derived by using the Hamilton's principle, which are then solved analytically to obtain the natural frequencies of the piezoelectric nanoplate. A detailed parametric study is conducted to discuss the influences of the nonlocal parameter, axial force, external electric voltage and temperature change on the thermo-electro-Mechanical Vibration characteristics of piezoelectric nanoplates.

Yue-sheng Wang - One of the best experts on this subject based on the ideXlab platform.

  • thermo electro Mechanical Vibration of piezoelectric nanoplates based on the nonlocal theory
    Composite Structures, 2013
    Co-Authors: Liaoliang Ke, Yue-sheng Wang, Jie Yang, Sritawat Kitipornchai
    Abstract:

    This paper mainly studies the thermo-electro-Mechanical free Vibration of piezoelectric nanoplates based the nonlocal theory and Kirchhoff theory. It is assumed that the piezoelectric nanoplate is a simply supported rectangular plate, and subjected to a biaxial force, an external electric voltage and a uniform temperature change. The governing equations and boundary conditions are derived by using the Hamilton's principle, which are then solved analytically to obtain the natural frequencies of the piezoelectric nanoplate. A detailed parametric study is conducted to discuss the influences of the nonlocal parameter, axial force, external electric voltage and temperature change on the thermo-electro-Mechanical Vibration characteristics of piezoelectric nanoplates.

  • thermoelectric Mechanical Vibration of piezoelectric nanobeams based on the nonlocal theory
    Smart Materials and Structures, 2012
    Co-Authors: Liaoliang Ke, Yue-sheng Wang
    Abstract:

    Thermoelectric-Mechanical Vibration of the piezoelectric nanobeams is first investigated in this paper based on the nonlocal theory and Timoshenko beam theory. The governing equations and boundary conditions are derived by using the Hamilton principle. The differential quadrature (DQ) method is employed to determine the natural frequencies of the piezoelectric nanobeams with different boundary conditions. The influences of the nonlocal parameter, temperature change, external electric voltage and axial force on the thermoelectric-Mechanical Vibration characteristics of the piezoelectric nanobeams are discussed in detail. It is found that the nonlocal effect is significant for the natural frequencies of the nanobeams. This study also reveals that the natural frequencies of the nanobeams are quite sensitive to the thermoelectric-Mechanical loadings. The results should be relevant to the design and application of the piezoelectric nanodevices.

J N Reddy - One of the best experts on this subject based on the ideXlab platform.

  • thermo electro Mechanical Vibration of size dependent piezoelectric cylindrical nanoshells under various boundary conditions
    Composite Structures, 2014
    Co-Authors: Liaoliang Ke, Yanfeng Wang, J N Reddy
    Abstract:

    Abstract Thermo-electro-Mechanical Vibration of piezoelectric cylindrical nanoshells is studied using the nonlocal theory and Love’s thin shell theory. The governing equations and boundary conditions are derived using Hamilton’s principle. An analytical solution is first given for the simply supported piezoelectric nanoshell by representing displacement components in the double Fourier series. Then, the differential quadrature (DQ) method is employed to obtain numerical solutions of piezoelectric nanoshells under various boundary conditions. The influence of the nonlocal parameter, temperature rise, external electric voltage, radius-to-thickness ratio and length-to-radius ratio on natural frequencies of piezoelectric nanoshells are discussed in detail. It is found that the nonlocal effect and thermoelectric loading have a significant effect on natural frequencies of piezoelectric nanoshells.

Ali Farajpour - One of the best experts on this subject based on the ideXlab platform.

  • thermo electro Mechanical Vibration of coupled piezoelectric nanoplate systems under non uniform voltage distribution embedded in pasternak elastic medium
    Current Applied Physics, 2014
    Co-Authors: Saeid Reza Asemi, Ali Farajpour
    Abstract:

    Abstract In the present paper, the thermo-electro-Mechanical Vibration characteristics of a piezoelectric-nanoplate system (PNPS) embedded in a polymer matrix are investigated. The system is subjected to a non-uniform voltage distribution. The voltage distribution and in-plane preloads are very important in the resonance mode of smart composite nanostructures using PNPS. Small scale effects are taken into consideration using the nonlocal continuum mechanics. Hamilton's principle is employed to derive the nonlocal equations of motion. The governing equations are solved for various boundary conditions by using differential quadrature method (DQM). To verify the accuracy of the present results, a closed-form solution is also derived for the natural frequencies of simply supported PNPSs. The results of DQM are compared with those of exact solution and an excellent agreement is found. Finally, the effects of initial preload, temperature change, boundary conditions, aspect ratio, length-to-thickness ratio, nonlocal and non-uniform parameters on the Vibration characteristics of PNPSs are studied. It is shown that the natural frequencies are quite sensitive to the non-uniform and nonlocal parameters.