Journal ArticleDOI
Dynamic characteristics of cylindrical hybrid panels containing viscoelastic layer based on layerwise mechanics
TLDR
In this paper, a viscoelastic damping model of cylindrical hybrid panels with co-cured, free and constrained layers was developed and investigated by using the refined finite element method based on the layerwise shell theory.Abstract:
The viscoelastic damping model of the cylindrical hybrid panels with co-cured, free and constrained layers has been developed and investigated by using the refined finite element method based on the layerwise shell theory. The transverse shear and normal strains and the curved geometry are exactly taken into account in the present layerwise shell model, which can depict the zig-zag in-plane and out-of-plane displacements. The damped natural frequencies, modal loss factors and frequency response functions of cylindrical viscoelastic hybrid panels are compared with those of the base composite panel without a viscoelastic layer. The difference in the free vibration and damping of the thin and thick composite laminates and the viscoelastic sandwiched beam between full and partial layerwise theories is verified by comparison with the published results. Various damping characteristics of cylindrical hybrid panels with free viscoelastic layer, constrained layer damping, and co-cured sandwich laminates are investigated. Present results show that the full layerwise damping model accurately predicted the vibration and damping of the cylindrical hybrid panels with viscoelastic layers.read more
Citations
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Journal ArticleDOI
Recent research advances on the dynamic analysis of composite shells: 2000-2009
TL;DR: A review of the state-of-the-art in the area of dynamic analysis of composite shells can be found in this article, where the main aim is to provide a broad perspective of the current state of the art in this field.
Journal ArticleDOI
Research and applications of viscoelastic vibration damping materials: A review
TL;DR: A comprehensive review of the various research methods and theory calculation models that are employed in engineering to study the static and dynamic vibration characteristics of viscoelastic damping material (VDM) formed structures is presented in this article.
Journal ArticleDOI
Layerwise Theories of Laminated Composite Structures and Their Applications: A Review
TL;DR: In this paper, the authors present an overall review for the layerwise theories of the laminated composite structures and their applications, and present two basic schemes employed to establish a LWT according to the construction of the displacements fields in the thickness direction.
Journal ArticleDOI
Free vibration and damping analysis of porous functionally graded sandwich plates with a viscoelastic core
TL;DR: In this paper, a free vibration and damping analysis of porous functionally graded (FG) sandwich plates is presented based on a modified Fourier-Ritz method, which is composed of a viscoelastic core and two porous FG face layers.
Journal ArticleDOI
High-order layerwise finite element for the damped free-vibration response of thick composite and sandwich composite plates
TL;DR: In this article, a high-order layerwise finite element methodology is presented, which enables prediction of the damped dynamic characteristics of thick composite and sandwich composite plates, including stiffness, mass and damping matrices.
References
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Book
Mechanics of Laminated Composite Plates and Shells : Theory and Analysis, Second Edition
TL;DR: The use of composite materials in engineering structures continues to increase dramatically, and there have been significant advances in modeling for general and composite materials and structures in particular as discussed by the authors. But the use of composites is not limited to the aerospace domain.
Book
Mechanics of laminated composite plates and shells : theory and analysis
TL;DR: In this article, the authors present an analysis of the properties of composite materials using the classical and first-order theories of Laminated Composite Plates and shells, as well as a detailed analysis of their properties.
Journal ArticleDOI
Damping of Flexural Waves by a Constrained Viscoelastic Layer
TL;DR: In this article, a quantitative analysis of the damping effectiveness of a constrained layer of damping tape is presented, where the loss factor η is defined as the normalized imaginary part of the complex bending stiffness of the damped plate.
Journal ArticleDOI
Vibration and damping analysis of a three-layered composite plate with a viscoelastic mid-layer
P. Cupiał,J. Nizioł +1 more
TL;DR: In this paper, the natural frequencies and loss factors of a rectangular three-layered plate with a viscoelastic core layer and laminated face layers are derived for a non-symmetric plate with general anisotropy of the face layers.
Journal ArticleDOI
Loss factors and resonant frequencies of encastré damped sandwich beams
D.J. Mead,Š. Markuš +1 more
TL;DR: In this article, the authors used the differential equation for the damped normal modes of a three-layer encastre sandwich beam, in conjunction with appropriate boundary conditions, to determine the characteristic equation for resonant frequency, loss factor and modal roots.
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