Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
10424719 | Composites Part B: Engineering | 2005 | 16 Pages |
Abstract
This study presents a nonlinear transient finite element model for the elastodynamic response of thick shape memory alloy (SMA) composite beams. A three-dimensional thick beam with a matrix material and embedded SMA ribbons or wires is investigated. To predict the behavior of the beam, a higher-order shear-deformation beam theory and the von-Karman strain field are employed. A one-dimensional constitutive model and sinusoidal phase transformation kinetics are utilized to model the thermo-mechanical behavior of the SMA layers. A finite element model is developed to predict both passive and active performance. Numerical results are obtained for a beam composed of a polycarbonate layer as the matrix, and a segment of Nitinol ribbon embedded in the polycarbonate layer at its neutral surface. The numerical results demonstrate an effective vibration suppression of the beam when the SMA layer is activated. A parametric study is conducted to demonstrate the effects of different material and geometric properties on the active vibration response of the SMA composite beam.
Related Topics
Physical Sciences and Engineering
Engineering
Engineering (General)
Authors
M.M. Ghomshei, N. Tabandeh, A. Ghazavi, F. Gordaninejad,