Experimental Buckling Loads of Sandwich Panels with Carbon Fibre Faceplates

Pearce, T.R.A.; Webber, J. P. H.

doi:10.1017/s0001925900006703

Cited by 56 publications

(14 citation statements)

References 6 publications

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“…The failure is entirely due to the collapse of the face sheet. Analytical calculations were also carried out to compute the critical load using Equation (3). This was done only for the specimens without teflon implants.…”

Section: Resultsmentioning

confidence: 99%

“…They glued wooden strips 12.7 mm wide and 3.2 mm thick to the faces of each specimen at the upper and lower edges in order to prevent the crushing, and conducted in-plane compression tests. Pearce and Webber [2,3] experimentally determined the buckling and face plate wrinkling loads for simply supported sandwich panels, made from fiber reinforced laminated carbon fiber face plates and honey-comb cores. They also performed numerical calculations for overall buckling and faceplate wrinkling of simply supported sandwich panels.…”

Section: Introductionmentioning

confidence: 99%

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Buckling of Sandwich Composites; Effects of Core?Skin Debonding and Core Density

et al. 2005

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Foam-core sandwich composites have been fabricated using innovative co-injection resin infusion technique and tested under in-plane compression. The sandwich construction consisted of Klegcell foam as core materials and S2-glass/vinyl ester composites as face sheets. Tests were conducted with various foam densities and also with implanted delamination between the core and the face sheet. The intent was to investigate the effect of core density, and the effect of core-skin debonds on the overall buckling behavior of the sandwich. Analytical and finite element calculations were also performed to augment the experimental observations. It has been observed that core density has direct influence on the global buckling of the sandwich panel, while embedded delamination seem to have minimal effect on both global as well as local buckling. Detailed description of the experimental work, finite element modeling and analytical calculations are presented in this paper.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Buckling of Sandwich Composites; Effects of Core?Skin Debonding and Core Density

et al. 2005

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“…They used the model to calculate wrinkling and overall buckling of anisotropic sandwich panels due to compressive in-plane forces. The results were compared to experimental results by Pearce and Webber [8] and also Webber, et. al [9] and they are in good agreements.…”

Section: Introductionmentioning

confidence: 95%

Bending and Deformation of Sandwich Panels Due to Localized Pressure

Hadi¹,

Fajar²

2005

itbj.eng.sci.

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Bending and deformation of sandwich panels due to localized pressure were analyzed using both Rayleigh-Ritz and finite element methods. The faces were made of laminated composite plates, while the core was a honeycomb material. Carbon fiber and glass fiber reinforced plastics were used for composite plate faces. In the case of Rayleigh-Ritz method, first the total energy of the system was calculated and then taking the variations of the total energy, the sandwich panel deflections could be computed. The deflections were assumed by means of Fourier series. A finite element code NASTRAN was exploited extensively in the finite element method. 3-dimensional 8-node brick elements were used to model sandwich panels, for both the faces sheets and the core. The results were then compared to each other and in general they are in good agreements. Dimple phenomena were found in these cases. It shows that localized pressure on sandwich structures will produce dimple on the pressurize region with little effects on the rest of the structures.

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“…Panel (1) For this example, Pearce and Webber [34] have firstly presented experimental buckling loads for simply supported sandwich panels. Subsequently Dafedar et al [21] have proposed two sets of mixed models based on layerwise (LW) as well as higher order (ESL) theories to analyze these buckling problems.…”

Section: Numerical Examplesmentioning

confidence: 99%

Thermomechanical buckling of laminated composite and sandwich plates using global–local higher order theory

Wanji

2007

International Journal of Mechanical Sciences

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Experimental Buckling Loads of Sandwich Panels with Carbon Fibre Faceplates

Cited by 56 publications

References 6 publications

Buckling of Sandwich Composites; Effects of Core?Skin Debonding and Core Density

Buckling of Sandwich Composites; Effects of Core?Skin Debonding and Core Density

Bending and Deformation of Sandwich Panels Due to Localized Pressure

Thermomechanical buckling of laminated composite and sandwich plates using global–local higher order theory

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