Dynamic flexural properties of anisotropic fibrous composite beams

Adams, Robert D.; Maheri, M.R.

doi:10.1016/0266-3538(94)90058-2

Cited by 107 publications

(56 citation statements)

References 14 publications

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“…In that case, the shape of the hysteretic loop becomes elliptical [1,2], and c i become constant material properties. The orthotropic elastic and damping properties can be measured from tests on uni-directional beam specimens with 0 and 908 fibre orientation [4,8] (reference [15] gives an alternative method for determining the elastic properties from modal tests on orthotropic plates).…”

Section: Damping In Laminated Frp Materialsmentioning

confidence: 99%

Modal Vibration Damping of Anisotropic FRP Laminates Using the Rayleigh–ritz Energy Minimization Scheme

Maheri¹,

Adams²

2003

Journal of Sound and Vibration

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Section: Damping In Laminated Frp Materialsmentioning

confidence: 99%

Modal Vibration Damping of Anisotropic FRP Laminates Using the Rayleigh–ritz Energy Minimization Scheme

Maheri¹,

Adams²

2003

Journal of Sound and Vibration

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“…FRPs also allow tailoring of stiffness and damping properties. At macroscopic level, the effects of composite layup and ply thickness on stiffness and damping have been widely studied ( [1][2][3]) and at ply level, the effect of volume fraction and fibre distribution on viscoelastic properties has been also investigated [4].…”

Section: Introductionmentioning

confidence: 99%

Effect of fibre shape and interphase on the anisotropic viscoelastic response of fibre composites

Pathan

Tagarielli

Patsias

2017

Composite Structures

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We perform Monte Carlo analyses of the anisotropic viscoelastic response of random RVEs representing the microstructure of UD fibre composites. Both fibres and matrix are taken as isotropic viscoelastic solids; the fibres have different shapes including circular, elliptical, Reauleaux and star-shaped; they are separated from the matrix by interphase regions of different mechanical properties and thicknesses. The analyses allow determining the sensitivity of the transversely isotropic, viscoelastic response of UD composites to fibre volume fraction, fibre shape, interphase volume fraction and interphase properties.

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“…Adams R D [1] consider the basic elasticity relationships for unidirectional composites, together with the Adams-Bacon damping criterion, are utilised for prediction of moduli and flexural damping of anisotropic CFRP (Carbon fiber reinforced polymer) and GRP beams with respect to fibre orientation. Billups E K [2] works on several two-dimensional theories for investigating the SDC (Specific damping capacity) of composite materials and theories are compared with those of Adams and Bacon, Adams and Maheri, Ni and Adams [3] and Saravanos and Chamis.…”

Section: Passive Damping Characteristics Of Carbon Epoxy Composite Plmentioning

confidence: 99%

Passive Damping Characteristics of Carbon Epoxy Composite Plates

K¹,

Rao²

2016

JMSE-A

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Vibration damping is an important phenomenon in the field of engineering design while predicting the dynamic analysis of the most of the structures. It is one of the typical dynamic responses of structural members, which allows the members fail due to larger amplitudes. Composite materials are replacing conventional structural materials due to attractive, superior mechanical properties such as high strength to weight ratio, high modulus, high corrosion resistance and good fatigue resistance. Composite materials possess high degree of material damping compared with conventional materials. One of the advanced technique employed to safe guard against the severe intensity of vibrations by controlling the dynamics of the structures is the provision of enhancing energy dissipation by the design of a constrain layer. When a constrain layer is made of a non actuating stiff layer of material introduced in the structure, say a viscoelastic material called a PCLD (Passive constrained layer damping). In the present work, an analytical solution for damping of a FRP (Fiber reinforced polymer) plates with a single or double interleaved viscoelastic layers in is obtained. Ritz method is employed to predict the damping nature of the plate under several boundary conditions. Specific damping capacity and a loss factor are deduced from the method of energy formulation for viscoelastic layers interleaved in laminated fiber reinforced plate. The loss factor of constrain layered plate is calculated as a function of fiber orientation in its orthotropic layers. An isotropic constrain layers are configured at midplane, symmetric, asymmetric and outer positions across the thickness of the plate. A parametric study also carried out to observe the effect of position of a constant thickness viscoelastic layer on the damping characteristics of passively constrain orthotropic plate.

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Dynamic flexural properties of anisotropic fibrous composite beams

Cited by 107 publications

References 14 publications

Modal Vibration Damping of Anisotropic FRP Laminates Using the Rayleigh–ritz Energy Minimization Scheme

Modal Vibration Damping of Anisotropic FRP Laminates Using the Rayleigh–ritz Energy Minimization Scheme

Effect of fibre shape and interphase on the anisotropic viscoelastic response of fibre composites

Passive Damping Characteristics of Carbon Epoxy Composite Plates

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