Finite element formulation for dynamics of delaminated composite beams with piezoelectric actuators |
| |
| Institution: | 1. Department of Mechanical Engineering, Tarbiat Modares University, Tehran, Iran;2. School of Mechanical & Aerospace Engineering, Kingston University, London, England, United Kingdom;3. Mechanical Engineering Faculty, Amirkabir University of Technology, Tehran, Iran;4. Department of Mechanical Engineering, Coventry University, United Kingdom;5. School of Business & Mathematics, Richmond American University, London, United Kingdom |
| |
| Abstract: | As a part of an effort to develop a model-supported method for detection of delaminations in composite beams with the use of time responses to external excitations, a finite element formulation for dynamics of a composite beam with delamination and attached piezoelectric actuators is developed. In this formulation account is taken of transverse shear deformation and nonlinear through-thickness variation of the longitudinal displacement. Parameters that characterize the delamination are incorporated into the formulation that makes the finite element model convenient for use in conjunction with damage identification (not discussed in the present paper). Computational predictions of frequencies show good agreement with experimental results. |
| |
| Keywords: | |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
