Measurement of meso-scale shear deformations for modelling textile composites

Potluri, Prasad; Ciurezu, D.A. Perez; Ramgulam, R. B.

doi:10.1016/j.compositesa.2005.03.032

Cited by 94 publications

(62 citation statements)

References 20 publications

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“…Optical full-field stain measurements start to being used in textile deformability research quite recently, in the work of the present authors [10][11][12][13][14][15][16][17][18][19] and others [20][21][22]. The paper systematises these studies together with the latest results, aiming at demonstrating that state-of-the-art fullfield optical measurements are ''a must'' for any laboratory doing research in deformability of textile reinforcements.…”

Section: Measurement Of the Local Deformation State Of A 3d-mentioning

confidence: 99%

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Full-field strain measurements in textile deformability studies

Lomov¹,

Boisse²,

Deluycker³

et al. 2008

Composites Part A: Applied Science and Manufacturing

191

118

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Full-field strain measurements are applied in studies of textile deformability during composite processing: (1) in testing of shear and tensile deformations of textiles (picture frame, bias and biaxial extension test) as an ''optical extensometer'', allowing accurate assessment of the sample deformation, which may differ significantly from the deformation applied by the testing device; (2) to study mechanisms of the textile deformation on the scale of the textile unit cell and of the individual yarns (meso-and micro-scale full-field strain measurements); (3) to measure the 3D-deformed shape and the distribution of local deformations (e.g., shear angles) of a textile reinforcement after draping, providing input data for the validation of material drape models and for the prediction of the consolidated part performance via structural finite element analysis. This paper discusses these three applications of the full-field strain measurements, providing examples of studies of deformability of woven (glass, glass/PP) and non-crimp (carbon) textile reinforcements. The authors conclude that optical full-field strain techniques are the preferable (sometimes the only) way of assuring correct deformation measurements during tensile or shear tests of textile.

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Section: Measurement Of the Local Deformation State Of A 3d-mentioning

confidence: 99%

“…In this experiment, a tensile test is performed on a rectangular specimen in which the warp and weft directions of the tows are orientated initially at ±45°to the direction of the applied tensile load (Fig. 4) [21,[35][36][37][38][39]. When the specimen is stretched from L to L + d (see Fig.…”

Section: Bias Extension Testmentioning

confidence: 99%

Full-field strain measurements in textile deformability studies

Lomov¹,

Boisse²,

Deluycker³

et al. 2008

Composites Part A: Applied Science and Manufacturing

191

118

View full text Add to dashboard Cite

show abstract

“…The bias test is a traction test on a sample oriented at 45°. It is much used and analyzed for the determination of composite reinforcement mechanical behaviour [17,[43][44][45][46][47][48]. At the beginning of the test, yarns make a 45°angle with the deformation direction.…”

Section: Bias Testmentioning

confidence: 99%

Simulation of 3D interlock composite preforming

Luycker

Morestin

Boisse

et al. 2009

Composite Structures

110

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“…Macro-scale DIC (i.e. strain gauge length > RUC) is used in the picture frame test [9,19,20], in the bias test [21] and in the biaxial test [19,22]. [9] report shear deviations between the frame and the fabric (dry weaves) of 5 to 10 • at 60 • frame shear (or 8-16.7% error), [20] in the order of 2-4 • at 30 • frame shear.…”

Section: Accepted Manuscriptmentioning

confidence: 99%