A finite element model for the analysis of 3D axisymmetric laminated shells with piezoelectric sensors and actuators: Bending and free vibrations

  • Authors:
  • Henrique Santos;Cristóvão M. Mota Soares;Carlos A. Mota Soares;J. N. Reddy

  • Affiliations:
  • IDMEC/IST - Instituto de Engenharia Mecínica, Instituto Superior Técnico, Technical University of Lisbon, Av. Rovisco Pais, 1049-001 Lisboa, Portugal;IDMEC/IST - Instituto de Engenharia Mecínica, Instituto Superior Técnico, Technical University of Lisbon, Av. Rovisco Pais, 1049-001 Lisboa, Portugal;IDMEC/IST - Instituto de Engenharia Mecínica, Instituto Superior Técnico, Technical University of Lisbon, Av. Rovisco Pais, 1049-001 Lisboa, Portugal;Department of Mechanical Engineering, Texas A&M University, College Station, TX 77843-3123, USA

  • Venue:
  • Computers and Structures
  • Year:
  • 2008

Quantified Score

Hi-index 0.00

Visualization

Abstract

This paper addresses the bending and free vibrations of multilayered cylindrical shells with piezoelectric properties using a semi-analytical axisymmetric shell finite element model with piezoelectric layers using the 3D linear elasticity theory. In the present 3D axisymmetric model, the equations of motion are expressed by expanding the displacement field using Fourier series in the circumferential direction. Thus, the 3D elasticity equations of motion are reduced to 2D equations involving circumferential harmonics. In the finite element formulation the dependent variables, electric potential and loading are expanded in truncated Fourier series. Special emphasis is given to the coupling between symmetric and anti-symmetric terms for laminated materials with piezoelectric rings. Numerical results obtained with the present model are found to be in good agreement with other finite element solutions.