Acoustic emission wave propagation in honeycomb sandwich panel structures

Abdulaziz, Ahmed H.; Hedaya, Mohammed; Elsabbagh, Adel; Holford, Karen Margaret; McCrory, John

doi:10.1016/j.compstruct.2021.114580

Cited by 13 publications

(5 citation statements)

References 26 publications

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“…Justin et al [ 37 ] infused shear thickening fluid using vacuum infusion process in the aluminum core in the hypervelocity impact analysis on honeycomb sandwich panel. Ahmed et al [ 38 ] created aluminum honeycomb sandwich panels through vacuum assisted resin infusion process for studying the acoustic emission wave propagation.…”

Section: Methodsmentioning

confidence: 99%

Fabrication of aluminum honeycomb cored carbon fabric/epoxy composite sandwich structures via vacuum assisted resin infusion technique

Arunachalam¹,

Kumar²

2021

Polymer Composites

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A detailed step‐by‐step fabrication procedural document of thin‐walled aluminum honeycomb sandwich composite structures, panels, and specimens using vacuum assisted resin infusion process was delivered in this paper. By and large, honeycomb sandwich structures are made by keeping the honeycomb core in between two face sheets, which are glued with the help of adhesives. In the present fabrication process, aluminum honeycomb core was glued in between the carbon fabric reinforced epoxy composite face sheets through vacuum assisted resin infusion technique. The present paper is aimed at fabricating two configurations of honeycomb sandwich composite panels namely, without considering any filler material inside the honeycomb cell, with considering the filler material inside the honeycomb cell. Plastic pellets made up of poly carbonate were considered as filler material for stiffening the aluminum honeycomb sandwich composite panels.

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Section: Methodsmentioning

confidence: 99%

Fabrication of aluminum honeycomb cored carbon fabric/epoxy composite sandwich structures via vacuum assisted resin infusion technique

Arunachalam¹,

Kumar²

2021

Polymer Composites

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“…The frequency range 160-196 kHz and 4 filters with 25 kHz bandwidth are selected for the investigation. The distance between two points is calculated by applying Equation (11). The distances ∆x A = 0.3 mm and ∆x S = 3 mm for the A 0 and S 0 modes are chosen respectively.…”

Section: Example Of the Polyvinyl Chloride Filmmentioning

confidence: 99%

“…At low frequencies, there are only two dispersion modes of propagating Lamb waves: asymmetric A 0 , and a symmetric S 0 mode that propagate at different velocities, and the identification of them is a simple task. Therefore, they are most commonly used in various applications [11]. With the frequency increase, the number of modes increases and separation and identification of these regimes is still a difficult task [12].…”

Section: Introductionmentioning

confidence: 99%

Reconstruction of Lamb Wave Dispersion Curves in Different Objects Using Signals Measured at Two Different Distances

2021

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The possibilities of an effective method of two adjacent signals are investigated for the evaluation of Lamb waves phase velocity dispersion in objects of different types, namely polyvinyl chloride (PVC) film and wind turbine blade (WTB). A new algorithm based on peaks of spectrum magnitude is presented and used for the comparison of the results. To use the presented method, the wavelength-dependent parameter is proposed to determine the optimal distance range, which is necessary in selecting two signals for analysis. It is determined that, in the range of 0.17–0.5 wavelength where δcph is not higher than 5%, it is appropriate to use in the case of an A0 mode in PVC film sample. The smallest error of 1.2%, in the distance greater than 1.5 wavelengths, is obtained in the case of the S0 mode. Using the method of two signals analysis for PVC sample, the phase velocity dispersion curve of the A0 mode is reconstructed using selected distances x1 = 70 mm and x2 = 70.5 mm between two spatial positions of a receiving transducer with a mean relative error δcph=2.8%, and for S0 mode, x1 = 61 mm and x2 = 79.7 mm with δcph=0.99%. In the case of the WTB sample, the range of 0.1–0.39 wavelength, where δcph is not higher than 3%, is determined as the optimal distance range between two adjacent signals. The phase velocity dispersion curve of the A0 mode is reconstructed in two frequency ranges: first, using selected distances x1 = 225 mm and x2 = 231 mm with mean relative error δcph=0.3%; and second, x1 = 225 mm and x2 = 237 mm with δcph=1.3%.

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“…Sandwich cores are commonly made from metallic and non-metallic materials such as balsa wood, truss core, and various type of synthetic foams such as Polyvinyl chloride (PVC) and Polyethylene terephthalate (PET), honeycomb cores made from metals such as Aluminium or nonmetals such as Nomex. [14][15][16][17] The mechanical characteristics of some of the commonly used cores in FRPSS are described in Table 2.…”

Section: Introductionmentioning

confidence: 99%

Mechanical behaviour of fabric-reinforced plastic sandwich structures: A state-of-the-art review

Osa-uwagboe

Silberschimdt

Aremi

et al. 2023

Jnl of Sandwich Structures & Materials

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The use of fibre-reinforced plastics (FRPs) in sandwich structures increased for various industrial applications thanks to their strength-to-weight ratio which provides designers with advanced options for modern structures. FRP Sandwich Structures (FRPSS) are often used in aerospace, biomedical, defence, and marine products, where their high structural performance is required to sustain complex in-service loads and withstand varying environmental conditions. Progressive degradation of FRPSS under such circumstances has been a subject of interest for researchers owing to safety requirements for products with FRP. This paper reviews the state-of-the-art of the mechanical behaviour of FRPSS subjected to various loading regimes. It highlights the variation in structural performance, viscoelastic properties, damage resistance, and sequence of environmental degradation of FRPSS. Numerical methods and damage algorithms used to predict failures are also presented to provide sufficient knowledge for the design of FRPSS. This review contributes to further research on characterizing the properties of FRPSS under quasi-static and dynamic loading conditions.

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Acoustic emission wave propagation in honeycomb sandwich panel structures

Cited by 13 publications

References 26 publications

Fabrication of aluminum honeycomb cored carbon fabric/epoxy composite sandwich structures via vacuum assisted resin infusion technique

Fabrication of aluminum honeycomb cored carbon fabric/epoxy composite sandwich structures via vacuum assisted resin infusion technique

Reconstruction of Lamb Wave Dispersion Curves in Different Objects Using Signals Measured at Two Different Distances

Mechanical behaviour of fabric-reinforced plastic sandwich structures: A state-of-the-art review

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