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دانلود رایگان مقاله Prediction of the Permeability of Woven Fabricsthe equation expressing the relationship between permeability of interyarn intersticesand fabric structures. Validation with experimental data shows that interyarnporosity has a very strong influence on fabric permeability. The stepwise regressionmethod has been used to explore the permeability of interfiber interstices.The prediction equation has been developed focusing on the permeability of interyarnpores and the overall fabric cover factor. One set of worsted fabrics is used tovalidate the equation. It shows that except for fabrics with z/z twist yarns or twistlessfilaments, the predicted equation gives a good accuracy with an average error of13%.


woven fabrics


permeability


interyarn interstices


Hagen


Poiseuille


formula


interfiber interstices


stepwise regression


prediction



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فایل فلش


کارآموزی


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اقدام پژوهی


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خلاصه


Through-thickness permeability modelling of

When a woven fabric is subject to a normal uniform loading, its properties such as tightness and through-thickness permeability are both altered, which relates to the fabric out-of-plane deformation (OPD) and dynamic permeability (DP). In this article, fabric OPD is analytically modelled through an energy minimisation method, and corresponding fabric DP is established as the function of ...

Numerical Prediction for Permeability of Woven Fabrics

NUMERICAL PREDICTION FOR PERMEABILITY OF WOVEN FABRICS GG. Specht (Intern)(Intern), S Advani P SimacekS. Advani, P. Simacek University of Delaware . Center for Composite Materials . Department of Mechanical Engineering GOGOAL SO O GSOLID MODELING FLUENT • V Systems Composites sends multiple files • The purpose of this research is to predict the The purpose of this research is to predict ...

Prediction of one-layer woven fabrics air …

36 woven fabric samples were produced using nine frequently implemented weave types together with two warp densities (29.3 and 22 ends/cm) and two weft densities (15 and 20 picks/cm), resulting in four different densities of woven fabrics. The yarns had the same linear density and material in warp and weft directions. Air permeability measurements were performed with the Air Permeability ...

Prediction of the in-plane and through-plane …

The permeability property of fabric is a desired performance property of textile structure used in different areas. In this study, the relationship between in-plane and through-plane permeability behaviors and the structural properties of woven fabrics having numerous usage areas, such as clothing and technical textiles, were investigated with the help of data obtained from a group of test ...

Prediction of one-layer woven fabrics air …

36 woven fabric samples were produced using nine frequently implemented weave types together with two warp densities (29.3 and 22 ends/cm) and two weft densities (15 and 20 picks/cm), resulting in four different densities of woven fabrics. The yarns had the same linear density and material in warp and weft directions. Air permeability measurements were performed with the Air Permeability ...

Prediction of the air permeability of woven

The permeability of the woven fabrics has been modelled using ANNs as well (Tokarska, 2004; Çay et al., 2007). Further on, the impact permeability has been studied (Tokarska & Gniotek, 2009) and ...

Through-thickness permeability modelling of

When a woven fabric is subject to a normal uniform loading, its properties such as tightness and through-thickness permeability are both altered, which relates to the fabric out-of-plane deformation (OPD) and dynamic permeability (DP). In this article, fabric OPD is analytically modelled through an energy minimisation method, and corresponding fabric DP is established as the function of ...

PERMEABILITY OF WOVEN FABRICS: ANALYTICAL AND …

PERMEABILITY OF WOVEN FABRICS: ANALYTICAL AND NUMERICAL PREDICTIONS B. Laine 1, P. Beauchêne 1, Ph. Boisse 2, G. Hivet 3, S.V. Lomov 4, M. Hirsekorn 1, P. Badel 2 1 ONERA / DMSC, France [email protected] 2 LAMCOS, INSA de Lyon, France [email protected] 3 PRISME, Université d’Orléans, France [email protected] 4 K.U.Leuven, Dept. MTM, …

A Prediction Method for In-Plane Permeability and ...

in-plane permeability of woven fabrics and proposed a predictive model. Wu [14] and Nedanov [15] researched the trans-plane permeability by theory and experiments to describe 3D permeability of fiber laminates. Some researchers have described the flow using equivalent

مقاله Havlová M. Air Permeability and Costructional ...

The main aim of this paper is to look into the relationship between the structure and air permeability of a woven fabric, and discuss the possibility of the prediction of fabric air permeability. With respect to the relationship between the air perدانلود مقاله ...

Total porosity, theoretical analysis, and prediction …

06.07.2015 · In this study, we attempted to establish a theoretical model for the porosity and predicted the air permeability of woven fabrics. A theoretical model was created to predict the total porosity and the air permeability of a fabric structure depending on the geometrical parameters such as pore size, warp density, weft density, fabric thickness, number of yarn, diameter of yarn, and fiber density. For the …

(PDF) Predicting the Air Permeability of …

Noman Haleem et al., [3] has studied "Predicting the Air Permeability of Polyester/Cotton Blended Woven Fabrics", results shows that, Air permeability of the polyester/cotton blended woven fabrics ...

Numerical Prediction for Permeability of Woven Fabrics

NUMERICAL PREDICTION FOR PERMEABILITY OF WOVEN FABRICS GG. Specht (Intern)(Intern), S Advani P SimacekS. Advani, P. Simacek University of Delaware . Center for Composite Materials . Department of Mechanical Engineering GOGOAL SO O GSOLID MODELING FLUENT • V Systems Composites sends multiple files • The purpose of this research is to predict the The purpose of this research is to predict ...

Prediction of the air permeability of woven

The permeability of the woven fabrics has been modelled using ANNs as well (Tokarska, 2004; Çay et al., 2007). Further on, the impact permeability has been studied (Tokarska & Gniotek, 2009) and ...

Air Permeability of Woven Fabrics

The void volume in woven textile fabrics causes air permeability. The air permeability of a textile fabric is determined by the rate of air flow through a material under a differential pressure between the two fabric surfaces [3]. The prescribed pressure differential is 10 mm of water [4,5]. The air permeability of a fabric is influenced

Prediction of one-layer woven fabrics air …

Prediction of one-layer woven fabrics air permeability using porosity parameters . Article (PDF Available) in Textile Research Journal 82(2):117-128 · January …

Prediction of the air permeability of woven

Although air permeability of the textile fabrics is a complex phenomenon, the nonlinear modeling becomes a useful tool for its prediction based on the structural data of the woven fabrics., – The air permeability and water content modeling support the prediction of the related physical properties of the fabric based on the design parameters only. The vacuum drying performance estimation ...

study on air permeability and porosity of fabric

The Effect of Weave Density on Fabric Handle and . study is worth executing Geometrical structure of woven fabrics is shown as follows [5] Air permeability of fabrics were measured by KES-F8-AP1 [9] A constant volume of air is passed through the fabric and the air resistance is measured with high resolution as 0 02 mm water height pressure Warm/cool feeling qmax [10] which is considered to be ...

study on air permeability and porosity of fabric

The Effect of Weave Density on Fabric Handle and . study is worth executing Geometrical structure of woven fabrics is shown as follows [5] Air permeability of fabrics were measured by KES-F8-AP1 [9] A constant volume of air is passed through the fabric and the air resistance is measured with high resolution as 0 02 mm water height pressure Warm/cool feeling qmax [10] which is considered to be ...

Through-thickness permeability modelling of

When a woven fabric is subject to a normal uniform loading, its properties such as tightness and through-thickness permeability are both altered, which relates to the fabric out-of-plane deformation (OPD) and dynamic permeability (DP). In this article, fabric OPD is analytically modelled through an energy minimisation method, and corresponding fabric DP is established as the function of ...

Numerical Prediction for Permeability of Woven Fabrics

NUMERICAL PREDICTION FOR PERMEABILITY OF WOVEN FABRICS GG. Specht (Intern)(Intern), S Advani P SimacekS. Advani, P. Simacek University of Delaware . Center for Composite Materials . Department of Mechanical Engineering GOGOAL SO O GSOLID MODELING FLUENT • V Systems Composites sends multiple files • The purpose of this research is to predict the The purpose of this research is to predict ...

Prediction and Correlation of Air Permeability and …

01.03.2017 · The aim of this study was to develop statistical models for predicting the air permeability and light transmission properties of woven cotton fabrics and determine the level of correlation between the two parameters. Plain woven fabrics were developed with different warp and weft linear densities, ends per inch and picks per inch. After desizing, scouring, bleaching, drying and conditioning, the air …

Prediction of one-layer woven fabrics air …

36 woven fabric samples were produced using nine frequently implemented weave types together with two warp densities (29.3 and 22 ends/cm) and two weft densities (15 and 20 picks/cm), resulting in four different densities of woven fabrics. The yarns had the same linear density and material in warp and weft directions. Air permeability measurements were performed with the Air Permeability ...

Geometrical Modelling of 3D Woven Reinforcements for ...

suggested that 3D orthogonal woven fabrics have significantly higher in-plane permeability than 2D fabrics (woven and knitted) at identical fibre volume fraction [13]. Numerical . 4 predictions of the permeability of an orthogonal weave by Ngo and Tamma [14] indicated that the in-plane permeability is high compared to the through-thickness permeability, and qualitative agreement with ...

(PDF) Predicting the Air Permeability of …

Noman Haleem et al., [3] has studied "Predicting the Air Permeability of Polyester/Cotton Blended Woven Fabrics", results shows that, Air permeability of the polyester/cotton blended woven fabrics ...

Prediction of the air permeability of woven

Although air permeability of the textile fabrics is a complex phenomenon, the nonlinear modeling becomes a useful tool for its prediction based on the structural data of the woven fabrics., – The air permeability and water content modeling support the prediction of the related physical properties of the fabric based on the design parameters only. The vacuum drying performance estimation ...

Prediction of the Permeability of Woven Fabrics ...

The prediction equation has been developed focusing on the permeability of inter-yarn pores and the overall fabric cover factor. One set of worsted fabrics is used to validate the equation. It shows that except for fabrics with z/z twist yarns or twistless filaments, the predicted equation gives a good accuracy with an average error of 13%.

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