Nonlinear Bending of Piezoelectric Cylindrical Shell Reinforced with BNNTs under Electro-Thermo-Mechanical Loadings

Jinhua Yang^*, Pengjun Zhang

School of Civil Engineering and Architecture, Changsha University of Science & Technology, Changsha, China.

DOI: 10.4236/msa.2015.68076                

Abstract

Under combined electro-thermo-mechanical loadings, the nonlinear bending of piezoelectric cylindrical shell reinforced with boron nitride nanotubes (BNNTs) is investigated in this paper. By employing nonlinear strains based on Donnell shell theory and utilizing piezoelectric theory including thermal effects, the constitutive relations of the piezoelectric shell reinforced with BNNTs are established. Then the governing equations of the structure are derived through variational principle and resolved by applying the finite difference method. In numerical examples, the effects of geometric nonlinear, voltage, temperature, as well as volume fraction on the deflection and bending moment of axisymmetrical piezoelectric cylindrical shell reinforced with BNNTs are discussed in detail.

Keywords

Nonlinear Bending, Piezoelectric, Cylindrical Shell, BNNT, Electro-Thermo-Mechanical Loadings

Conflicts of Interest

The authors declare no conflicts of interest.

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