Predicting the longitudinal elastic modulus of braided tubular composites using a curved unit-cell geometry

Ayranci, Cagri; Carey, Jason P.

doi:10.1016/j.compositesb.2009.10.006

Cited by 71 publications

(64 citation statements)

References 14 publications

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“…All of these models make assumptions regarding the braid geometry such as the yarn cross-sectional shape; yarn major and minor diameters; fiber undulation period; as well as, matrix and fiber volume fractions. Key parameters like braid angle have been measured by wrapping transparent paper on the specimens and manually measuring the angle using a protractor [5]. Similarly, assumptions regarding yarn shape and size have been made based on two dimensional micrographs of yarns [31]; however this method does not capture variations in yarn shape and size throughout the braid sample.…”

Section: Braid Strand Analysismentioning

confidence: 99%

“…To simplify and automate the braid strand identification and measurement process, a cylinder unwrapping algorithm has been developed to convert the original tubular braid lCT images into a flattened braid structure. This study will provide a new method for accurately assessing braid strand path geometry and voids content measurements that are necessary for accurate prediction of tubular composite braid material properties and modeling [5,6].…”

Section: Introductionmentioning

confidence: 99%

“…Similar to composite laminates, the mechanical properties of tubular braided composites can be predicted using the braid geometry and with the mechanical properties of the composite constituents [5,6]. Accurate knowledge of the matrix and fiber volume fractions is required for these mechanical models.…”

Section: Introductionmentioning

confidence: 99%

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Micro-computed tomography analysis of tubular braided composites

Melenka

Lepp

Cheung

et al. 2015

Composite Structures

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Section: Braid Strand Analysismentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Micro-computed tomography analysis of tubular braided composites

Melenka

Lepp

Cheung

et al. 2015

Composite Structures

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“…In this process a braiding loom deposits continuous, intertwined fibre tows to create a desired reinforcing braid architecture [6] and offers several advantages like control over the fibre deposition angle and fast fibre deposition rate [7][8][9][10][11][12][13]. At a minimal level, a braid (denoted biaxial braid) is constituted with two groups of yarns intertwined.…”

Section: Introductionmentioning

confidence: 99%

The tensile behaviour of biaxial and triaxial braided fabrics

Duchamp

Legrand

Soulat

2016

Journal of Industrial Textiles

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The tensile behaviour of braid reinforcement is classically described by the behaviour of composite elaborated from these reinforcements. Few studies concern the tensile behaviour of braided fabrics. In this paper biaxial and triaxial braids are manufactured on a braiding loom. The evolution of key parameters as linear mass and braiding angle in function of process parameters is presented. Braid reinforcements are characterized in uniaxial tensile. The mechanical behaviour is analysed and compared in function of the braiding angle, but also different kinds of braid are considered. A specific behaviour called ''double-peak'' is identified for triaxial braids which have a higher braiding angle. The evolution of the braiding angle measured during tensile tests gives a comprehension on the mechanical behaviour of dry braids. Associated with this experimental study, an analytical model is also proposed, to predict mechanical properties of braid reinforcements.

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“…As a new type of textile materials, Three-dimensional (3D) braided composites can overcome traditional lamination composites' defect of weak interlamination properties and impact resistance, which have been widely used in aerospace and civilian fields for their excellent properties, like integrity, lightweight and design ability [1][2][3][4][5]. The 3D braided composites can be divided into three-dimensional four-direction (3D4D) braided composites, three-dimensional five-direction (3D5D) braided composites and three-dimensional full five-direction (3D-full-5D) braided composites.…”

Section: Introductionmentioning

confidence: 99%

Influence of Braided Angles on Mechanical Properties of Three-Dimensional Full Five-Direction Braided Composites

Cao¹,

Chen²

2017

JTEFT

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E-Glass fibers (1200tex) were used as raw materials in the paper to prepare three-dimensional five-direction (3D5D) and three-dimensional full fivedirection (3D-full-5D) braided fabrics by using 3DB-J100-8 modular braided machine. Resin system composed of epoxy resin E51 and polyethenoxyamines H023 were combined with above three-dimensional braided fabrics to prepare three-dimensional (3D) braided composites. Tensile and compressive properties of 3D braided composites were tested by using Instron 3385H universal testing machine, and tensile and compressive characteristics of 3D braided composites were observed. What's more, influence of braided angles on tensile and compressive properties was studied. The results show that tensile and compressive properties of 3D-full-5D braided composites were better than that of 3D5D braided composites. Tensile and compressive properties of 3D braided composites decreased with the increase of braided angles. The results will lay a foundation of further study on 3D braided composite's designing optimization and property analysis.

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Predicting the longitudinal elastic modulus of braided tubular composites using a curved unit-cell geometry

Cited by 71 publications

References 14 publications

Micro-computed tomography analysis of tubular braided composites

Micro-computed tomography analysis of tubular braided composites

The tensile behaviour of biaxial and triaxial braided fabrics

Influence of Braided Angles on Mechanical Properties of Three-Dimensional Full Five-Direction Braided Composites

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