Experimental study of dynamic air permeability for woven fabrics
Article
Article Title | Experimental study of dynamic air permeability for woven fabrics |
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ERA Journal ID | 3629 |
Article Category | Article |
Authors | Xiao, Xueliang (Author), Zeng, Xuesen (Author), Bandara, Palitha (Author) and Long, Andrew (Author) |
Journal Title | Textile Research Journal |
Journal Citation | 82 (9), pp. 920-930 |
Number of Pages | 11 |
Year | 2012 |
Place of Publication | United Kingdom |
ISSN | 0040-5175 |
1746-7748 | |
Digital Object Identifier (DOI) | https://doi.org/10.1177/0040517511429605 |
Web Address (URL) | http://journals.sagepub.com/doi/abs/10.1177/0040517511429605 |
Abstract | Dynamic permeability is relevant to textile applications subjected to fluid/gas flow under high pressure, such as automotive airbags, wearable airbags and parachute fabrics. Dynamic permeability can be determined when a porous medium is tested under transient pressure conditions. This paper utilizes a reliable approach to measure and characterize dynamic permeability for woven fabrics. The experimental principle is based on the ideal gas law and the non-linear Forchheimer equation. Compared with static permeability measured under a constant low pressure, the dynamic permeability is an intrinsic property determined by change of fabric geometry and structure due to a high-pressure load. The pressure-induced deformation is identified, including effects on fiber and yarn arrangement, yarn porosity and fabric thickness. The level of deformation is a function of the number of fabric layers and initial pressure drop. The experimental results show that the dynamic permeability is higher than the static permeability for loose fabric, while it is lower for tight fabrics. For tight fabric, more fabric layers and a lower initial pressure can reduce the difference between the static and the dynamic permeability. Analytical models are used to explain and predict both static and dynamic permeability. |
Keywords | analytical prediction; deformation; dynamic permeability; woven fabric; analytical predictions; fabric thickness; Forchheimer equation; high pressure; Ideal gas law; initial pressure; pow pressures; porous medium; textile applications; transient pressures; mechanical Properties; synthetic and natural fibers; textile technology; accidents and accident prevention; materials science |
Contains Sensitive Content | Does not contain sensitive content |
ANZSRC Field of Research 2020 | 401413. Textile technology |
400204. Automotive safety engineering | |
Public Notes | Files associated with this item cannot be displayed due to copyright restrictions. |
Byline Affiliations | University of Nottingham, United Kingdom |
University of Leeds, United Kingdom | |
Institution of Origin | University of Southern Queensland |
https://research.usq.edu.au/item/q40x2/experimental-study-of-dynamic-air-permeability-for-woven-fabrics
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