Evaluation of bias-extension and picture-frame test methods for the measurement of intraply shear properties of PP/glass commingled fabrics

Lebrun, Gilbert; Bureau, Martin; Denault, J.

doi:10.1016/s0263-8223(03)00057-6

Cited by 212 publications

(147 citation statements)

References 4 publications

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“…Several key entry parameters for the simulation models need to be determined. The mechanical properties of a fabric ply have been widely studied [10][11][12][13][14][15][16][17][18][19][20], and many teams are still working on this topic to refine the knowledge of the composite community. However, in addition to the ply properties, the fabric/tool contacts and, when dealing with multi-ply forming, the fabric/fabric contact have to be studied and modelled.…”

Section: Processes Of the Lcm (Liquid Composite Moulding) Family Sucmentioning

confidence: 99%

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Design and Potentiality of an Apparatus for Measuring Yarn/Yarn and Fabric/Fabric Friction

et al. 2011

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Section: Processes Of the Lcm (Liquid Composite Moulding) Family Sucmentioning

confidence: 99%

“…In addition, very different unit cell sizes and anisotropy also have to be dealt with. This suggests that specific experimental equipment should be considered to take into account these specifications [10][11][12][13][14][15][16][17][18][19].…”

Section: Device Principlesmentioning

confidence: 99%

Design and Potentiality of an Apparatus for Measuring Yarn/Yarn and Fabric/Fabric Friction

et al. 2011

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“…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

196

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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“…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%