On-line monitoring of multi-component strain development in a tufting needle using optical fibre Bragg grating sensors

Chehura, Edmon; Dell’Anno, Giuseppe; Huet, Tristan; Staines, Stephen E.; James, Stephen W.; Partridge, Ivana K.; Tatam, Ralph P.

doi:10.1088/0964-1726/23/7/075001

Cited by 11 publications

(9 citation statements)

References 18 publications

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“…Broadly speaking, the tip wears out after a few working hours if the preform is particularly thick or the fabric particularly tight. A quantitative analysis of the stress and strain to which the needle is subjected while tufting is available in [44].…”

Section: Thread Insertionmentioning

confidence: 99%

Manufacturing of composite parts reinforced through-thickness by tufting

Dell’Anno

Treiber

Partridge

2016

Robotics and Computer-Integrated Manufacturing

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a b s t r a c tThe paper aims at providing practical guidelines for the manufacture of composite parts reinforced by tufting. The need for through-thickness reinforcement of high performance carbon fibre composite structures is reviewed and various options are presented. The tufting process is described in detail and relevant aspects of the technology are analysed such as: equipment configuration and setup, latest advances in tooling, thread selection, preform supporting systems and choice of ancillary materials. Effects of the process parameters on the preform fibre architecture and on the meso-structure of the reinforced component are discussed. Special emphasis is given to the different options available in terms of tuft insertion and loops management.Potential fields of application of the technology are investigated as well as the limitations of its applicability in relation to preform nature and geometry. Critical issues which may arise during the manufacturing process concerning thread insertion, loops formation, alteration to the fabric fibres layout or local volume fraction are identified.Crown

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Section: Thread Insertionmentioning

confidence: 99%

Manufacturing of composite parts reinforced through-thickness by tufting

Dell’Anno

Treiber

Partridge

2016

Robotics and Computer-Integrated Manufacturing

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“…Currently, the development of the tufting device represents a major topic for several studies [23, 24, 30]. The first devices (e.g.…”

Section: Reinforcement Technologiesmentioning

confidence: 99%

“…Few results concern tufted 3D-fibre composites and their mechanical properties which are essentially published in [23–33]. Recent studies presented by Pappas et al.…”

Section: Introductionmentioning

confidence: 99%

Through-the-thickness reinforcement for composite structures: A review

Gnaba

Legrand

Wang

et al. 2018

Journal of Industrial Textiles

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Three-dimensional preforms have been developed in order to remedy and minimize the out-of-plane damage caused by 2D structures. Several researches have been done on more complex structures which have more interesting mechanical characteristics through-the-thickness. A wide spectrum of 3D textile technologies encompassing weaving, knitting, stitching, z-pinning, tufting, etc. is used to manufacture through-the-thickness reinforced materials. This kind of reinforcement aims to achieve a balance between the in-plane and out-of-plane properties. Recently, tufting shows more opportunities to develop through-the-thickness reinforcements especially with the advances in devices from manual to fully automatic. In literature, the mechanical behaviour of tufted composites has been one of the main subjects, however, few studies outline the mechanical behaviour of dry tufted fabrics. Dry stage is an essential step to understand the influence of through-the-thickness reinforcement and the formability of multilayer preforms. In this context, the present paper reviews the various technologies of through-the-thickness reinforcement as well as the microstructural defects related to both the impregnation and the kind of reinforcement. Also, this work highlights the mechanical performance of tufted 3D structures at dry and composite scales.

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“…It was realised by the authors after making a thorough literature review that there are few results related to the degree to which through-thickness reinforcement degrades in-plane mechanical properties of tufted bre reinforced composites [ [37], and even fewer related to in-plane mechanical properties of tufted green biocomposites. Natural bre based green biocomposites are the material of future in structural, automotive and aerospace industry due to due to their environmental merits, low density, high speci c strength, stiffness, low energy consumption in fabrication, CO 2 neutrality and sound proo ng characteristics [38].…”

Section: Introductionmentioning

confidence: 99%

Investigation of the Effect of Tufts Contribution on the In-Plane Mechanical Properties of Flax Fibre Reinforced Green Biocomposite

Rashid

Hanus

Chetehouna

et al. 2020

Preprint

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Traditional laminated composites have fibres oriented only in the in-plane of the laminate due to their manufacturing process, and are therefore very susceptible to transverse cracking and delamination from out-of-plane actions. Delamination can considerably reduce the load bearing capacity of a structure hence several reinforcement solutions, based on the principle to add out-of-plane reinforcement to the 2D fabric, have been explored to enhance the delamination resistance. However, the usual textile technologies for Z-reinforcement such as weaving, knitting, stitching, z-pinning, and tufting generates perturbations that may alter the in-plane mechanical properties. Although tufting is a single needle and single thread based one side stitching (OSS) technique which can incorporate almost tension free through the thickness reinforcement in a material, various types of microstructural defects may be created during the manufacturing process and lead to a degradation of the in-plane properties of the composite. Moreover, due to awareness in environmental concerns, the development and use of eco-friendly biocomposites to replace synthetic ones has been increasing. This research work investigates the effect on in plane mechanical properties of adding through the thickness reinforcement (TTR) by tufting in a flax based composite laminate to improve the transversal strength. The glass fibre tufted laminates of 550 g/m2 flax fibre were moulded using a 38% biobased thermoset resin by vacuum bag resin transfer moulding (VBRTM). The tufted and un-tufted in-plane mechanical properties of green biocomposite were determined in tension, compression and shear in accordance with ASTM 3039, ASTM D7137 and EN ISO 14130, using universal INSTRON 1186 and MTS 20M testing machines. The quantification of the in-plane mechanical properties results established a reduction of the in plane tensile mechanical properties, due to tufting, whereas the reduction effects are marginal in compression. As expected, the glass tufts strength the connection between core and skin of the composite so that the interlaminar shear strength, deduced from flexural tests with small span-to-thickness ratio, is increased, Thanks to Digital Image Correlation (DIC) performed during shear tests an increase in interlaminar shear modulus is highlighted.

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On-line monitoring of multi-component strain development in a tufting needle using optical fibre Bragg grating sensors

Cited by 11 publications

References 18 publications

Manufacturing of composite parts reinforced through-thickness by tufting

Manufacturing of composite parts reinforced through-thickness by tufting

Through-the-thickness reinforcement for composite structures: A review

Investigation of the Effect of Tufts Contribution on the In-Plane Mechanical Properties of Flax Fibre Reinforced Green Biocomposite

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