Journal ArticleDOI
Damping Characteristics of Cylindrical Laminates with Viscoelastic Layer Considering Temperature- and Frequency-Dependence
TLDR
In this article, the authors used a full layerwise shell finite element method to predict the vibration and damping properties of cylindrical hybrid panels with viscoelastic layers, which can accurately represent the zig-zag in-plane and out-of-plane displacements of multilayered hybrid structures and can fully consider the transverse shear and normal strains.Abstract:
The vibration and damping characteristics of the cylindrical hybrid panels with viscoelastic layers were investigated by using a full layerwise shell finite element method which can consider temperature and frequency dependent material properties. The present layerwise shell theory can accurately represent the zig-zag in-plane and out-of-plane displacements of multilayered hybrid structures and can fully consider the transverse shear and normal strains and the perfect cylindrical geometry. The remarkable differences of the frequency response functions of cylindrical hybrid panels including constrained layer damping and co-cured sandwiched models were observed. Present results show that the damping mechanics of hybrid panels with viscoelastic layers may be greatly affected by their temperature and frequency dependent material properties and that the present full layerwise theory can be used to accurately predict the vibration and damping characteristics of hybrid shells with viscoelastic layers.read more
Citations
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I and i
TL;DR: There is, I think, something ethereal about i —the square root of minus one, which seems an odd beast at that time—an intruder hovering on the edge of reality.
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
Sound radiation and transmission loss characteristics of a honeycomb sandwich panel with composite facings: Effect of inherent material damping
M.P. Arunkumar,M. Jagadeesh,Jeyaraj Pitchaimani,K. V. Gangadharan,Lenin Babu Mailan Chinnapandi +4 more
TL;DR: In this article, the results of numerical studies carried out on vibro-acoustic and sound transmission loss behaviour of aluminium honeycomb core sandwich panel with fibre reinforced plastic facings were presented.
Journal ArticleDOI
Generalized thermoviscoelastic interaction due to periodically varying heat source with three-phase-lag effect
TL;DR: In this paper, a three-phase-lag model, GN model II (TEWOED) and GN model III(TEWED) are employed to study the thermomechanical coupling, thermal and mechanical relaxation effects.
Journal ArticleDOI
Mixed integer multi-objective optimization of composite structures with frequency-dependent interleaved viscoelastic damping layers
TL;DR: In this paper, a multiobjective optimization is proposed to design laminate with viscoelastic layer to simultaneously maximize structural modal damping and frequency and minimize weight, and the results show that the approach is quite useful in integrally designing such kind of composite structures.
References
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Journal ArticleDOI
I and i
TL;DR: There is, I think, something ethereal about i —the square root of minus one, which seems an odd beast at that time—an intruder hovering on the edge of reality.
Book
Vibration of laminated shells and plates
TL;DR: In this paper, the authors present a method for analyzing the effect of different kinds of shells on the performance of different types of shells, such as: CURVED BEAMS, PLATES SHALLOW SHELLS, CYLINDRICAL SHELLs, SPHERICAL SHELS, etc.
Journal ArticleDOI
Postbuckling and vibration characteristics of piezolaminated composite plate subject to thermo-piezoelectric loads
Il-Kwon Oh,Jae-Hung Han,In Lee +2 more
TL;DR: In this article, postbuckling and vibration analysis considering large thermopiezoelastic deflections are performed for fully symmetric and partially eccentric piezolaminated composite plates.
Journal ArticleDOI
Free Vibrations of Multilayer Anisotropic Cylindrical Shells
TL;DR: A theoretical analysis for determining the free vibra tional characteristics of thin-walled, circular cylindrical shells with layers of anisotropic elastic material arbitrarily laminated.
Journal ArticleDOI
Control of the natural frequencies of nitinol-reinforced composite beams
TL;DR: In this article, the shape memory alloy (NITINOL) wires are embedded along the neutral axes of flexible fiberglass composite beams and the underlying phenomena influencing the behavior of this class of composite structural members are presented.