Role of different fiber orientations and thicknesses of the skins and the core on the transverse shear damping of polypropylene honeycomb sandwich structures

Nagasankar, P.; Prabu, S. Balasivanandha; Velmurugan, R.

doi:10.1016/j.mechmat.2015.08.002

Cited by 18 publications

(6 citation statements)

References 25 publications

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“…Sandwich cores are also made up of composites like glass, Kevlar, carbon and Nomex aramid fiber. Efforts are also made to improve the performance by introducing multilayer [ 1 ] and fibre facesheets [ 2 ].…”

Section: Introductionmentioning

confidence: 99%

Investigation of Quasi-Static Indentation Response of Inkjet Printed Sandwich Structures under Various Indenter Geometries

et al. 2017

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The objective of this investigation was to determine the quasi-static indentation response and failure mode in three-dimensional (3D) printed trapezoidal core structures, and to characterize the energy absorbed by the structures. In this work, the trapezoidal sandwich structure was designed in the following two ways. Firstly, the trapezoidal core along with its facesheet was 3D printed as a single element comprising a single material for both core and facesheet (type A); Secondly, the trapezoidal core along with facesheet was 3D printed, but with variation in facesheet materials (type B). Quasi-static indentation was carried out using three different indenters, namely standard hemispherical, conical, and flat indenters. Acoustic emission (AE) technique was used to capture brittle cracking in the specimens during indentation. The major failure modes were found to be brittle failure and quasi-brittle fractures. The measured indentation energy was at a maximum when using a conical indenter at 9.40 J and 9.66 J and was at a minimum when using a hemispherical indenter at 6.87 J and 8.82 J for type A and type B series specimens respectively. The observed maximum indenter displacements at failure were the effect of material variations and composite configurations in the facesheet.

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Section: Introductionmentioning

confidence: 99%

Investigation of Quasi-Static Indentation Response of Inkjet Printed Sandwich Structures under Various Indenter Geometries

et al. 2017

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“…The process was as mentioned by the authors in their article. 32 Figure 2(a)-(c) gives the fabricated panels of varying nano-clay content of 0, 2, and 4 wt. % on the polyester resin, respectively.…”

Section: Methodsmentioning

confidence: 99%

Study of matrix modifications by nano-clay on the mechanical properties of AA3003 honeycomb sandwich panels

Prasanth

Raj

Jappes

et al. 2022

Proceedings of the Institution of Mechanical Engineers, Part C:

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Face/core debonding is one of the crucial problems of composite sandwich panels which consist of AA3003 aluminium honeycomb and glass fiber reinforced polymer face sheets. The panel was prepared by a hand-lay process at different nano-clay weight addition of 0%, 2%, 4%, and 6% with the objective of improving face/core adhesion. Interface bonding between face sheets and honeycomb core composite sandwiches and their mechanical behavior were investigated under in-plane compression and bending load. The flexural property of sandwich panels due to the influence of variation in strain rate is further determined. The morphologies of fractured samples were investigated by scanning electron microscope (SEM). The results revealed a significant improvement in mechanical characteristics when nano-clay was loaded to the composites at a concentration from 2 to 4 wt%, and the in-plane compression and flexural failure load values increased by 45% and 81%, respectively, when compared to a pristine sample. It was observed that increasing strain rate led to the increase in failure load of the sandwich panel. SEM images of fractured surfaces showed residual aluminium honeycomb was present in the face sheet, which indicates better adhesion between aluminium honeycomb core and face sheets.

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“…They proposed the result that using the pre-strained SMA wires the stiffness of the sandwich plate can be improved and therefore has a positive effect on the natural frequencies of the sandwich plate.P. Nagasankar et al [13] assayed the role of different fiber orientations and thicknesses of the skins and the core on the transverse shear damping of polypropylene honeycomb sandwich structures. They inferred that increasing the thickness of PPHC core increases the damping loss factor since it undergoes greater transverse shear deformation.…”

Section: 3other Sandwich Compositesmentioning

confidence: 99%

A Review Onsandwich and Natural Fiber Composites

Ramnath¹,

Elanchezhian²,

Shreyas³

et al. 2018

IOP Conf. Ser.: Mater. Sci. Eng.

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Abstract:Sandwich composite is a particular form of laminated composite in which a combination of two different and stiff materials is bonded together. In these composites, properties of the sandwich specimens are enhanced by its individual constituents. Sandwich composites usually consist of two thin, stiff materials separated by thick lightweight cores. The cores that are generally used are honeycomb and foam cores. In this paper research work is carried out on the sandwich composites. The various tests are performed on the fabricated models and major applicationsare also discussed below.

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Role of different fiber orientations and thicknesses of the skins and the core on the transverse shear damping of polypropylene honeycomb sandwich structures

Cited by 18 publications

References 25 publications

Investigation of Quasi-Static Indentation Response of Inkjet Printed Sandwich Structures under Various Indenter Geometries

Investigation of Quasi-Static Indentation Response of Inkjet Printed Sandwich Structures under Various Indenter Geometries

Study of matrix modifications by nano-clay on the mechanical properties of AA3003 honeycomb sandwich panels

A Review Onsandwich and Natural Fiber Composites

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