A woven reinforcement forming simulation method. Influence of the shear stiffness

Zouari, Bassem; Daniel, Jean-Luc; Boisse, Philippe

doi:10.1016/j.compstruc.2005.09.031

Cited by 61 publications

(34 citation statements)

References 25 publications

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“…Optical measures of this compression would be interesting. Meso-scale analysis have been performed in the case of the picture frame tests and the conclusions are in agreement with those obtained above for the bias test [14,16,25].…”

Section: Meso-scale Strain Fields: Revealing Mechanisms Of Fabric Defsupporting

confidence: 74%

“…The yarn is no more in a rigid body motion, it is strained but its strain field is not a shear strain but a transverse compression field. The similar compression was noted for the picture frame test in [14,16,25].…”

Section: Meso-scale Strain Fields: Revealing Mechanisms Of Fabric Defsupporting

confidence: 53%

“…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%

“…It permits to show that the strain in the yarn may be different from the global macroscopic strain in the fabric. The case of an in-plane shear ''bias test'' will be considered here; mesoscopic deformation of yarns in shear test are analysed using DIC in [14,16,25]. Such analysis can also be done for other elementary tests such as tensile or bending tests.…”

Section: Meso-scale Strain Fields: Revealing Mechanisms Of Fabric Defmentioning

confidence: 99%

See 3 more Smart Citations

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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Section: Meso-scale Strain Fields: Revealing Mechanisms Of Fabric Defsupporting

confidence: 74%

Section: Meso-scale Strain Fields: Revealing Mechanisms Of Fabric Defsupporting

confidence: 53%

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

confidence: 99%

Section: Meso-scale Strain Fields: Revealing Mechanisms Of Fabric Defmentioning

confidence: 99%

See 2 more Smart Citations

Full-field strain measurements in textile deformability studies

Lomov¹,

Boisse²,

Deluycker³

et al. 2008

Composites Part A: Applied Science and Manufacturing

196

118

View full text Add to dashboard Cite

show abstract

“…Conversely, some discrete models are also developed for fabric in which each yarn is modeled and is assumed to be a straight or a curved beam or truss [5]. And other authors have proposed the semi-discrete element methods [6][7][8]. All those models have been proved to be efficient and fast in the suitable cases.…”

Section: Introductionmentioning

confidence: 99%

Woven thermoplastic composite forming simulation with solid-shell element method

Chen

Saouab

Boisse

et al. 2009

Int. J. Simul. Multidisci. Des. Optim.

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-Textile composites become more and more popular in aeronautic industries, due to their high performances. In this work, based on the model shown in the paper [9], a solid-shell element is used to simulate the woven composite forming. Comparing with other shell elements, a distinctive advantage of solid-shell elements is that the complication on handing finite rotations does not exist. Accounting the specific mechanical behaviors of woven composite material, the tensile, in-plane shear, bending and compressive energies are taken into account depending on the fiber direction, and then the total strain energy is computed to be the sum of those energies. The necessary material data for the simulation come from standard tensile, compressive and bias test experiments. Some forming simulations are performed with this method, and we can observe the wrinkles that exhibit the influence of bending stiffness. The results show the efficiency of the approach.

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Experimental and numerical investigations of a thermoplastic composite (carbon/PPS) thermoforming

Abbassi¹,

Elfaleh²,

Mistou

et al. 2011

Struct. Control Health Monit.

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SUMMARYFor lightweight structural components, continuous fibre-reinforced thermoplastic composites have demonstrated success in aerospace and defence applications. Their mechanical behaviour is a result of the possible sliding and interactions between the fibres, but the complex deformation mechanisms of this sheet are a main problem in the practical thermoforming process. In this context, a large experimental work was developed to analyse the behaviour of a 5-harness satin weave carbon-polyphenylenesulfide (PPS) composite. Firstly, we started this work with a microscope observation of the sheet cross section and a thermo-gravimetric analysis of carbon/PPS to understand the thermal condition in the forming process, the reinforcement (fibre and yarn) geometry and dimensions and the textile reinforcement architectures. Secondly, in high temperature conditions (at 320 C), static uniaxial and biaxial tensile tests were carried out. During these mechanical tests, we used a digital image stereo-correlation technique to get full field displacement measurements and an infrared camera to measure the temperature in the surface of sample.The results of the experimental investigation were used with the commercial software ABAQUS to develop a numerical model of stamp thermoforming operation. The stamp thermoforming part was developed using a hemispherical punch and compared with an experimental result. In the deformed part obtained by thermoforming of the carbon/PPS sheet, we analysed the instability phenomena such as wrinkling.

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A woven reinforcement forming simulation method. Influence of the shear stiffness

Cited by 61 publications

References 25 publications

Full-field strain measurements in textile deformability studies

Full-field strain measurements in textile deformability studies

Woven thermoplastic composite forming simulation with solid-shell element method

Experimental and numerical investigations of a thermoplastic composite (carbon/PPS) thermoforming

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