Buckling of symmetrical circular sandwich plates with variable mechanical properties of the core in the radial direction

Magnucka‐Blandzi, Ewa; Wiśniewska-Mleczko, Karolina; Smyczyński, Mikołaj J.

doi:10.1016/j.compstruct.2018.07.020

Cited by 10 publications

(3 citation statements)

References 31 publications

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“…The geometric and material parameters of the selected problem are given in Table 6. The frequencies and modal loss factors are determined by Equation (26).…”

Section: Examplementioning

confidence: 99%

“…Pai and Palazotto [25] conducted the impact analysis of a sandwich plate with an elastic foundation at a low velocity. Magnucki et al [26] investigated the buckling analysis of symmetrical circular sandwich plates with a radially variable foam core. In this study, the mechanical properties of the core varied along the radial direction, remaining constant in the face sheets.…”

Section: Introductionmentioning

confidence: 99%

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Differential Transform Method for Axisymmetric Vibration Analysis of Circular Sandwich Plates with Viscoelastic Core

Demir

2022

Symmetry

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The purpose of this paper is to study the axisymmetric vibrations of circular three-layered sandwich plates with a frequency-dependent fractional viscoelastic core and elastic face sheets. First, the equations of motion and related boundary conditions are derived using the Hamilton’s principle for the free vibrations. Then, the governing equations obtained for various boundary conditions are solved and parametric studies are carried out to examine the vibration behavior of circular sandwich plates with a viscoelastic core. The differential transform method (DTM), a well-known semi-analytical–numerical solution technique, is utilized for the eigenvalue analysis. In addition, the finite element (FE) solution obtained with the commercial code ANSYS is added to this comparison. The effect of face and core layer thicknesses and the location of the core layer and core material on the dynamic and damping characteristics of circular sandwich plates with a fractional derivative viscoelastic core is studied in detail.

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“…The geometric and material parameters of the selected problem are given in Table 6. The frequencies and modal loss factors are determined by Equation (26).…”

Section: Examplementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Differential Transform Method for Axisymmetric Vibration Analysis of Circular Sandwich Plates with Viscoelastic Core

Demir

2022

Symmetry

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“…In recent decades, composite sandwich structures because of their unique mechanical properties such as high bending stiffness, high strength to weight ratio, and excellent energy absorption have attracted research attentions [1–3]. Sandwich panels are widely used in marine, aerospace, automotive, and shipbuilding industries [4–9]. These structures have three main parts: face sheet, core, and bonding between the core and face sheets in which have a significant impact on the performance of the structures.…”

Section: Introductionmentioning

confidence: 99%

Experimental and numerical study of buckling behavior of foam-filled honeycomb core sandwich panels considering viscoelastic effects

Safarabadi

Haghighi‐Yazdi

Sorkhi

et al. 2020

Jnl of Sandwich Structures & Materials

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Honeycomb sandwich panels are widely used in marine, aerospace, automotive and shipbuilding industries. High strength to weight and excellent energy absorption are features that make these structures unique. Foam filling the honeycomb core enhances the mechanical properties of sandwich panels considerably. In the present study, the buckling behavior of Nomex honeycomb core/glass-epoxy face sheet sandwich panel for both bare and foam-filled honeycomb core is investigated numerically and experimentally, considering the viscoelastic properties of the sandwich panel. Indeed, the viscoelastic properties of the composite face sheet and foam are determined by relaxation test and are implemented in ABAQUS using VUmat code. The finite element method is also performed using ABAQUS to model the buckling behavior of the sandwich panel incorporating both elastic and viscoelastic material behaviour. The effects of composite face sheet lay-up, core thickness, core cell size, and foam filling are also evaluated. The experimental and numerical results show that the foam increases the critical buckling load and energy absorption.

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Free Flexural Axisymmetric Vibrations of Generalized Circular Sandwich Plate

Magnucki

Magnucka‐Blandzi²

2022

Mechanisms and Machine Science

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Buckling of symmetrical circular sandwich plates with variable mechanical properties of the core in the radial direction

Cited by 10 publications

References 31 publications

Differential Transform Method for Axisymmetric Vibration Analysis of Circular Sandwich Plates with Viscoelastic Core

Differential Transform Method for Axisymmetric Vibration Analysis of Circular Sandwich Plates with Viscoelastic Core

Experimental and numerical study of buckling behavior of foam-filled honeycomb core sandwich panels considering viscoelastic effects

Free Flexural Axisymmetric Vibrations of Generalized Circular Sandwich Plate

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