Active damping of geometrically nonlinear vibrations of sandwich plates with fuzzy fiber reinforced composite facings

Abstract

This paper is concerned with the analysis of active constrained layer damping (ACLD) of geometrically nonlinear vibrations of sandwich plates with facings composed of fuzzy fiber reinforced composite (FFRC). FFRC is a novel composite where the short carbon nanotubes (CNTs) which are either straight or wavy are radially grown on the periphery of the long continuous carbon fiber reinforcements. The plane of waviness of the CNTs is coplanar with the plane of carbon fiber. The constraining layer of the ACLD treatment is composed of the vertically/obliquely reinforced 1-3 piezoelectric composites (PZCs) while the constrained viscoelastic layer has been sandwiched between the substrate and the PZC layer. The Golla-Hughes-McTavish method has been implemented to model the constrained viscoelastic layer of the ACLD treatment in time domain. A three dimensional nonlinear finite element model of smart FFRC sandwich plates integrated with ACLD patches has been developed to investigate the performance of these patches for controlling the geometrically nonlinear vibrations of these plates. This study reveals that the performance of the ACLD patches for controlling the geometrically nonlinear vibrations of the sandwich plates is better in the case of the facings composed of laminated FFRC than that in the case of the facings made of conventional orthotropic laminated composite. Particular emphasis has been placed on investigating the effect of the variation of piezoelectric fiber orientation angle on the performance of the ACLD treatment. The research carried out in this paper brings to light that even the wavy CNTs can be properly utilized for attaining B M. C. Ray

Review on the use of piezoelectric materials for active vibration, noise, and flow control

“…Earlier studies focused their application to beams and plates, but recently the possibility employing ACLD for a variety of structures has been explored by few researchers. Models have been derived, and numerical studies have been conducted for the active damping of geometrically nonlinear vibrations of skew doubly curved laminated composite shells [411], functionally graded (FG) sandwich plates [412], laminated composite shells [413,414], fiber reinforced magneto-electro-elastic plates (multiferroic fibrous composite plates) [415], sandwich plates with fuzzy fiber reinforced composite facings (FFRC) [416], and doubly curved sandwich shells FFRC by [417], by Rayʼs team. These studies used the simply supported boundary condition and velocity feedback for the analysis, and the modeling was based on the following 1-3 piezo-composite constitutive equations T .…”

Dynamic stability of anisotropic fiber-reinforced plate

“…Today, efficient solution algorithms for nonlinear problems of dynamic stability of shells, panels, and plates are the most pressing issue. The problems with a similar mathematical formulation were considered in [1][2][3][4][5][6][7][8][9][10][11][12].…”

Dynamic characteristic of partially debonded sandwich of ferry ro-ro’s car deck: a numerical modeling

“…The damage state associated with the presence of the debonding can be diagnosed by specific non-destructive damage detection method, i.e., numerical dynamic analysis [5]. This numerical dynamic analysis is usually associated with the use of finite element analysis and has been widely used to assess vibration in many structures [6,7]. The results of the dynamic finite element analysis can be used to strengthen the damage detection efficiency in the structural health monitoring system.…”