On the vibration behavior of functionally graded electrorheological sandwich beams

Allahverdizadeh, A.; Mahjoob, M. J.; Eshraghi, Iman; Nasrollahzadeh, Naser

doi:10.1016/j.ijmecsci.2013.02.011

Cited by 44 publications

(24 citation statements)

References 23 publications

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“…On the other hand, increasing the electric field strength causes a slight increase in the critical free stream static pressure and natural frequency values (i.e., panel flutter will be postponed to slightly higher static pressures). The latter observation may be justified by the outcome of recent research on dynamics characteristics of the ERF-based structures [3,5,[19][20][21][22]53], indicating the small effect of electric field strength on the computed free vibrational eigen-frequencies despite the notable change in the rheological properties of the electro-rheological material. Consequently, keeping in mind that the supersonic flutter boundary is mainly characterized by frequency coalescence Table 3 Effect of core ERF layer thickness on the critical free stream static pressure of the sandwich panel for selected geometric parameters, electric field strengths, and air- Table 3 displays at lower electric field strengths.…”

Section: Numerical Resultsmentioning

confidence: 87%

Aeroelastic analysis and active flutter suppression of an electro-rheological sandwich cylindrical panel under yawed supersonic flow

Hasheminejad

Motaaleghi

2015

Aerospace Science and Technology

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Section: Numerical Resultsmentioning

confidence: 87%

Aeroelastic analysis and active flutter suppression of an electro-rheological sandwich cylindrical panel under yawed supersonic flow

Hasheminejad

Motaaleghi

2015

Aerospace Science and Technology

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“…They related this anomalous behavior to deviation of beam deformation from the assumptions considered in the American Society for Testing and Materials (ASTM) equations. Allahverdizadeh et al (2013aAllahverdizadeh et al ( , 2013c also employed this technique to characterize ER fluid in the pre-yield region. They reported that the standardized ASTM E756-05:2002 method provides a rough estimation of the storage and loss moduli of the fluid and is not accurate, which is in part attributed to neglecting contribution due to the sealant.…”

Section: Methods Of Characterizing Mr/er Fluids In the Pre-yield Regionmentioning

confidence: 99%

Dynamic characteristics and control of magnetorheological/electrorheological sandwich structures: A state-of-the-art review

Eshaghi

Sedaghati

Rakheja

2016

Journal of Intelligent Material Systems and Structures

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During past four decades, applications of magnetorheological and electrorheological fluids in adaptive sandwich structures have been widely studied, primarily for the purpose of vibration control. The rapid response time of controllable magnetorheological/electrorheological fluids to an applied magnetic/electric field and reversible variations in their stiffness and damping properties have been the key motivations for adaptive structures applications. This article presents a comprehensive review of the reported studies on applications of magnetorheological/electrorheological fluids for realizing active and semi-active vibration suppression in sandwich structures. The review focuses on methods of characterizing the magnetorheological/electrorheological fluids in the pre-yield region, magnetic/electric field-dependent phenomenological models describing the storage and loss moduli of fluids, experimental and analytical methods developed for vibration analysis of sandwich structures with magnetorheological/electrorheological fluid treatments, analysis of structures with partial magnetorheological/electrorheological fluid treatments and optimal treatment locations, and developments in control strategies for vibration suppression of magnetorheological/electrorheological sandwich structures. The studies on dynamic responses of fully and partially treated magnetorheological/electrorheological-based sandwich beams, plates, shells, and panels are also discussed, including the mathematical modeling methods and associated assumptions, methods of solutions, and experimental methods.

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“…In this study it was concluded that the natural frequencies increased by increasing the intensity of the magnetic field irrespective to the boundary conditions. Allahverdizadeh et al [5] was studied the dynamic behaviour of adaptive sandwich beams, where the middle layer as electro-rheological fluid (ERF) and constraining layers were fabricated by functionally graded materials (FGM). This study shows that the resonant frequencies and the amplitude of peak values have been decreased by increasing the thickness FGM at constant electric filed.…”

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confidence: 99%

Vibration Analysis of Carbon Fiber Reinforced Laminated Composite Skin with Glass Honeycomb Sandwich Beam Using HSDT

Subramani

Arumugam

Ramamoorthy

2017

Period. Polytech. Mech. Eng.

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In this paper, the vibration analysis of uniform laminated composite sandwich beam with a viscoelastic core was studied. The governing equation of motion of the laminated composite sandwich beam has been derived based on higher order shear deformation theory (HSDT) in finite element model (FEM IntroductionNowadays the demand for the sandwich structure is getting increased because of its high stiffness to the low weight ratio. It is also paved the attention of the researchers and scientist towards the sandwich structures. A Sandwich structure finds its place in wide range of applications because of its high stiffness and flexural rigidity especially in marine, aerospace and astronautics. Ibrahim Ozkol and AytacArikoglu [1] were made an investigation on vibration analysis of the uniform laminated composite sandwich beams with viscoelastic core using differential transform method. The governing equation of motion of sandwich beamwas formulated by Hamilton's principle and it was solved by differential transform method (DTM), Eigen value analysis method was used to generate and evaluate frequencies. Banerjee et al. [3] investigated the vibration characteristics of the viscoelastic material based asymmetric sandwich beam by using the dynamic stiffness model which was developed from the Timoshenko beam theory. Manoharan et al. [4] presented the finite element formulation of the magnetorheological (MR) fluid based sandwich beam. The governing equation of motion sandwich beam was formulated using finite element method. In this study it was concluded that the natural frequencies increased by increasing the intensity of the magnetic field irrespective to the boundary conditions. Allahverdizadeh et al. [5] was studied the dynamic behaviour of adaptive sandwich beams, where the middle layer as electro-rheological fluid (ERF) and constraining layers were fabricated by functionally graded materials (FGM). This study shows that the resonant frequencies and the amplitude of peak values have been decreased by increasing the thickness FGM at constant electric filed. From the results it was indicated that at a definite applied electric field, the Clamped-Clamped beam showed the higher resonant frequencies and the cantilever beam showed the least value among all end conditions. Xu and Qiu [6] studied the free vibration analysis and optimization method of composite lattice truss core sandwich beams. The partial differential governing equation of motion was developed by adopting the Hamilton principle which was based on Thimosenko and bernoullis beam theory and then the natural frequencies of the

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On the vibration behavior of functionally graded electrorheological sandwich beams

Cited by 44 publications

References 23 publications

Aeroelastic analysis and active flutter suppression of an electro-rheological sandwich cylindrical panel under yawed supersonic flow

Aeroelastic analysis and active flutter suppression of an electro-rheological sandwich cylindrical panel under yawed supersonic flow

Dynamic characteristics and control of magnetorheological/electrorheological sandwich structures: A state-of-the-art review

Vibration Analysis of Carbon Fiber Reinforced Laminated Composite Skin with Glass Honeycomb Sandwich Beam Using HSDT

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