Nonlinear forced vibration of hybrid fiber/graphene nanoplatelets/polymer composite sandwich cylindrical shells with hexagon honeycomb core

Dong, Bin; Li, Hui; Wang, Xiangping; Sun, Wei; Luo, Zhong; Ma, Hui; Qin, Zhaoye; Han, Qingkai

doi:10.1007/s11071-022-07811-x

Cited by 19 publications

(2 citation statements)

References 69 publications

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“…Gupta and Pradyumna [27] adopted the thirdorder shear deformation theory considering the Murakami zig-zag effects to analyze the geometric nonlinear dynamic behaviors of sandwich shell panels with an auxetic core and fiber reinforced skins, and the authors also examined the feasibility of the composite auxetic core with variable stiffness characteristics. Dong et al [28] proposed an advanced cylindrical shell with three phase hybrid composite material skins and a hexagon honeycomb core, and investigated the nonlinear forced vibration responses of the structure in hygrothermal environments using the material homogenization approach, FSDT combined with von Ka´rma´n nonlinearity terms, and the multiple scale method. According to RHSDT incorporating von Karman's nonlinear theory, Karimiasl and Alibeigloo [29] employed the differential quadrature method and homotopy technique to solve the nonlinear free vibration properties of sandwich shell panels with a double U auxetic core and FG skins.…”

Section: Introductionmentioning

confidence: 99%

Nonlinear dynamic modeling and experimental study of full-composite cylindrical shells with a foam-filled cavity lattice core

Dong,

Li,

et al. 2023

Nonlinear Dyn

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A new full-composite cylindrical shell (FCCS) with a foam-filled cavity lattice core (FFCLC) is developed and prepared, and a nonlinear dynamic model considering the amplitude-dependent property of composite materials is proposed. Compared to traditional linear dynamic models, the lower frequencies and higher resonant responses of structures subjected to base harmonic excitations can be obtained in the proposed nonlinear dynamic model. The nonlinear dynamic behaviors of FFCLC-FCCSs are investigated theoretically and experimentally, in which the fabrication and assembly procedures of FFCLC-FCCS specimens are first provided, and vibration measurements are performed on those specimens subjected to different excitation amplitudes, wherein the soft nonlinear vibration phenomenon characterized by the amplitude-dependent property is discovered. Subsequently, in the framework of the first-order shear deformation theory based on the layerwise principle, the mode superposition approach and the Rayleigh-Ritz method are utilized to obtain the nonlinear frequencies, mode shapes, and resonant responses of the structure subjected to different excitation amplitudes. Therein, the equivalent material parameters of the core part are determined using the modified cross and fill equivalent principle, and the nonlinear elastic modulus with amplitude-dependent fitting coefficients of the skins and core are assumed by the Jones-Nelson nonlinear theory, and those coefficients are determined by using an inverse parameter identification and fitting technique based on experimental test data. Then, the validation work on the developed model is performed by comparing the calculated results of the model with those of the tests. Finally, the impacts of several critical parameters on the nonlinear dynamic behaviors of the structure are estimated, with some suggestions in favor of reducing the nonlinear resonant responses of FFCLC-FCCSs being clarified.

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Section: Introductionmentioning

confidence: 99%

Nonlinear dynamic modeling and experimental study of full-composite cylindrical shells with a foam-filled cavity lattice core

Dong,

Li,

et al. 2023

Nonlinear Dyn

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“…Some scholars utilized Ritz method and Gram-Schmidt polynomials to form approximate functions and analyzed the free vibration of RCS [19]. Furthermore, some scholars studied the nonlinear vibration of cylindrical shells of composite materials [20][21][22][23][24].…”

Section: Introductionmentioning

confidence: 99%

Investigation on Free Vibration of Rotating Cylindrical Shells with Variable Thickness

Xiangdong,

Xiaoli,

Bin

et al. 2023

Shock and Vibration

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In order to improve the performance and efficiency of the rotating cylindrical shell (RCS), one of the effective ways reduces the mass of the RCS. The scientific and effective method is to design the variable thickness of RCS (VTRCS) along the axial direction in response to this demand. Then, the vibration traveling wave characteristics of VTRCS are investigated by Chebyshev–Ritz method. The displacement field of the cylindrical shell is expanded in the form of the product of the Chebyshev polynomial and the boundary function. The kinetic and potential energies of the VTRCS are calculated based on the Sanders shell theory considering the effects of Coriolis forces and centrifugal forces. Also, the frequency equation of the VTRCS is obtained according to the Ritz method. The accuracy of the modeling method is verified by comparing the present results with literature that had done, and the convergence of the calculated results is studied. Finally, the free-vibration traveling wave characteristics of the VTRCS in different thickness variations are compared, and the parameters such as the rotational speed, thickness variation parameters, and aspect ratio on the free-vibration traveling wave characteristics of the VTRCS are discussed. The influence of thickness variation on the vibration characteristics is analyzed, which has significance for the lightweight design for VTRCS.

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Surface elastic-based MKM formulations for nonlinear three-dimensional vibrations of probabilistic inhomogeneous nanoshells

Sahmani,

Safaei

2023

Microsyst Technol

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Nonlinear forced vibration of hybrid fiber/graphene nanoplatelets/polymer composite sandwich cylindrical shells with hexagon honeycomb core

Cited by 19 publications

References 69 publications

Nonlinear dynamic modeling and experimental study of full-composite cylindrical shells with a foam-filled cavity lattice core

Nonlinear dynamic modeling and experimental study of full-composite cylindrical shells with a foam-filled cavity lattice core

Investigation on Free Vibration of Rotating Cylindrical Shells with Variable Thickness

Surface elastic-based MKM formulations for nonlinear three-dimensional vibrations of probabilistic inhomogeneous nanoshells

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