Free vibration analysis of laminated composite hybrid and GFRP shells based on higher order zigzag theory with experimental validation

Roy, Soumen; Thakur, Sandipan Nath; Ray, Chaitali

doi:10.1016/j.euromechsol.2021.104261

Cited by 16 publications

(3 citation statements)

References 37 publications

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“…In recent years, a large number of models for predicting dynamic responses of hybrid composite structures have been proposed. Roy et al [39] proposed a modified higher-order zigzag theory for the free vibration response behaviour of laminated composite hybrid and GFRP shells. Li et al [23] investigated the free vibration characteristics of carbon/ glass hybrid composite plates through first-order and higher-order deformation theories.…”

Section: Introductionmentioning

confidence: 99%

Free and Forced Vibration Analysis of Carbon/Glass Hybrid Composite Laminated Plates Under Arbitrary Boundary Conditions

Li,

Guedes Soares,

Liu

et al. 2024

Appl Compos Mater

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This paper presents the theoretical investigations on the free and forced vibration behaviours of carbon/glass hybrid composite laminated plates with arbitrary boundary conditions. The unknown allowable displacement functions of the physical middle surface are expressed in terms of standard cosine Fourier series and sinusoidal auxiliary functions to ensure the continuity of the displacement functions and their derivatives at the structural boundaries. Arbitrary boundary conditions are achieved through the introduction of an artificial spring technique. The first shear deformation theory and Lagrange equations are utilized to derive the energy expression, and the eigenvalue equations associated with free and forced vibration are obtained by Rayleigh-Ritz variational operations. Subsequently, these equations are then solved to determine the natural frequency, mode of vibration, and the steady-state displacement response under forced excitation. The new results are compared with those from references and finite element methods to verify the convergence, accuracy and efficiency of the analytical method. The effects of hybrid ratios, stacking sequences, lamination schemes, fibre orientation, boundary conditions and excitation force on the free and forced vibration behaviours of the carbon/glass hybrid composite laminated plates are analyzed in detail.

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Section: Introductionmentioning

confidence: 99%

Free and Forced Vibration Analysis of Carbon/Glass Hybrid Composite Laminated Plates Under Arbitrary Boundary Conditions

Li,

Guedes Soares,

Liu

et al. 2024

Appl Compos Mater

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show abstract

“…Glass fiber reinforced composites have a wide range of applications, including automotive and aerospace industries, boat building, wind turbine blades, sporting goods, and construction materials. They are valued for their lightweight, high strength, robustness, and their ability to resist to corrosion and environmental degradation [2,3]. Currently, plates made of laminated composite material are been progressively used in numerous civil engineering structures, aerospace and automotive parts as they offer superior stiffness, impact resistance, and durability when compared with rest of the materials.…”

Section: Introductionmentioning

confidence: 99%

Experimental and Numerical Investigation on Effect of Cut-Outs on Modal Parameters of FRP Composite Plates

Shashank,

Shraddha

et al. 2024

MSF

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Modal analysis of a quasi-isotropic Fiber Reinforced Polymer (FRP) composite plates having different cut-outs is numerically investigated under free-clamped boundary conditions using ANSYS 2023 R1. First six natural frequencies & corresponding mode shapes are extracted from the simulation. To verify the numerical results, experimental modal analysis is carried out on a sample specimen made of epoxy/glass composite with traditional ‘strike method ‘to determine the frequency response functions and to measure the natural frequencies. Investigation was continued to understand the effect of fiber orientation and systematically altered length to breadth ratio (size ratio - a/b) on the natural frequencies and the respective mode shapes. Obtained results exhibited that the correctly chosen fiber orientation contributes to improved dynamic performance, which delivers greater flexibility in designing structures to meet the application requirements. Furthermore, optimization of cut-outs was performed to demonstrate that variation in cut-outs is a key parameter and can be used to attain essential vibration mode shapes and definite frequencies. It was found from the investigation that circular cut-out acts a vital role for attaining desired free modal characteristics.

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“…Low-velocity impact analysis of sandwich nanocomposite truncated conical shells reinforced by Graphene platelets was presented by Al-Furjan et al [18] on the basis of higher order theory of shell. Roy et al [19] focused on the free vibration analysis of composite laminated hybrid shells on the basis of higher order modified zigzag theory.…”

Section: Introductionmentioning

confidence: 99%

Influences of fiber reinforced polymer layer on the dynamic deflection of concrete pipes containing nanoparticle subjected to earthquake load

et al. 2021

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A numerical solution for dynamic analysis induced by earthquake load in concrete pipes containing SiO 2 nanoparticles warped by fiber reinforced polymer (FRP) layer is utilized in the present paper on the basis of Mori-Tanaka model.The FRP layer is used as reinforcement for the concrete pipe. Utilizing the cylindrical higher order shell theory, the concrete pipe is mathematically simulated and the related governing relations are derived based on. Utilizing numerical methods of Newmark and Galerkin, the dynamic displacement of the concrete pipe is obtained. The influence of FRP layer and its thickness, volume fraction and agglomeration of nanoparticle, boundary conditions and length to radius ratio of the concrete pipe is studied on the dynamic deflection of the concrete pipe. Numerical outcomes illustrate that the FRP layer can reduces the dynamic deflection significantly.

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Free vibration analysis of laminated composite hybrid and GFRP shells based on higher order zigzag theory with experimental validation

Cited by 16 publications

References 37 publications

Free and Forced Vibration Analysis of Carbon/Glass Hybrid Composite Laminated Plates Under Arbitrary Boundary Conditions

Free and Forced Vibration Analysis of Carbon/Glass Hybrid Composite Laminated Plates Under Arbitrary Boundary Conditions

Experimental and Numerical Investigation on Effect of Cut-Outs on Modal Parameters of FRP Composite Plates

Influences of fiber reinforced polymer layer on the dynamic deflection of concrete pipes containing nanoparticle subjected to earthquake load

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