In-plane permeability prediction model for non-crimp and 3D orthogonal fabrics

Karaki, Mohamad; Hallal, Ali; Younès, Rafic; Trochu, F.; Lafon, Pascal

doi:10.1080/00405000.2017.1409327

Cited by 8 publications

(8 citation statements)

References 24 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Based on the finite element model of this literature [17,18,20], the 2.5D woven preform was regarded as a porous material with a definite geometry. The flow of resin in the fabric unit cell consisted of the micro-flow of resin in the interior of yarn and the meso-flow between the yarns, as depicted in Figure 6a.…”

Section: Resultsmentioning

confidence: 99%

“…Chen [14] used a dual-scale model to predict the fabric permeability, and the results showed that the permeabilities of fabrics with the same fiber volume fractions were not necessarily the same. Investigators [15,16,17,18] have established theoretical models to predict the permeabilities of three-dimensional orthogonal and angle-interlock woven fabrics and provided experimental validation of these models. However, the effect of shear deformation on the fabric permeability was not considered in the studies mentioned above.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

The Effect of Shear Deformation on Permeability of 2.5D Woven Preform

et al. 2019

View full text Add to dashboard Cite

The accurate prediction of the permeability is the key to optimizing the molding process of fiber reinforced composites, thus to improve the composite quality, and reduce the material and labor costs in the manufacturing process. In this paper, the permeability of 2.5D woven preform with shear deformation was studied by experiments and numerical simulations. The permeabilities of the samples under various shear angles were measured by the radial flow method. An RVE (representative volume element) model based on the fabric microstructure and shear deformation is developed to predict the permeability of preform and the simulation results are compared with experiments value to verify the effectiveness of this model. Using this model, the effect of the fiber volume fraction on the permeability of the 2.5D woven preform was determined. Based on the structural characteristics, experimental and simulation results of the 2.5D woven preform, an empirical equation for predicting its permeability under shear deformation was formulated. The prediction accuracy of the equation was evaluated, and the equation was used to determine the change of permeability with shear deformation for the 2.5D woven preform.

show abstract

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

The Effect of Shear Deformation on Permeability of 2.5D Woven Preform

et al. 2019

View full text Add to dashboard Cite

show abstract

“…In order to predict the permeability of 2.5 D interlock fabrics , Vernet and Trochu [71,72] developed an analytical model that calculates the pressure drop inside the fabric after predicting the size and distribution of the mesopores. Good agreement was observed at a selected fiber volume fraction for each fabric.…”

Section: Developed Analytical Modelmentioning

confidence: 99%

“…Finite element methods are used in a large number of articles [68][69][70][71][72][73][74][75][76][77][78][79]. The approach consists of discretizing the unit cell into elements, inside which reference elements are defined.…”

Section: Review Of Fabric Permeability Prediction: Numerical Simulationsmentioning

confidence: 99%

See 1 more Smart Citation

Progress in Experimental and Theoretical Evaluation Methods for Textile Permeability

et al. 2019

View full text Add to dashboard Cite

A great amount of attention has been given to the evaluation of the permeability tensor and several methods have been implemented for this purpose: experimental methods, as well as numerical and analytical methods. Numerical simulation tools are being seriously developed to cover the evaluation of permeability. However, the results are still far from matching reality. On the other hand, many problems still intervene in the experimental measurement of permeability, since it depends on several parameters including personal performance, preparation of specimens, equipment accuracy, and measurement techniques. Errors encountered in these parameters may explain why inconsistent measurements are obtained which result in unreliable experimental evaluation of permeability. However, good progress was done in the second international Benchmark, wherein a method to measure the in-plane permeability was agreed on by 12 institutes and universities. Critical researchers’ work was done in the field of analytical methods, and thus different empirical and analytical models have emerged, but most of those models need to be improved. Some of which are based on Cozeny-Karman equation. Others depend on numerical simulation or experiment to predict the macroscopic permeability. Also, the modeling of permeability of unidirectional fiber beds have taken the greater load of concern, whereas that of fiber bundle permeability prediction remain limited. This paper presents a review on available methods for evaluating unidirectional fiber bundles and engineering fabric permeability. The progress of each method is shown in order to clear things up.

show abstract