Effect of specimen history on structure and in-plane permeability of woven fabrics

Zeng, X. and Endruweit, A. and Long, A. C. (2015) Effect of specimen history on structure and in-plane permeability of woven fabrics. Journal of Composite Materials, 49 (13). pp. 1563-1578. ISSN 0021-9983

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Abstract

Before being processed into composites, reinforcement fabrics may undergo repeated involuntary deformation, the complete sequence of which is here referred to as specimen history. To mimic its effect, fabric specimens were subjected to sequences of defined shear operations. For single fabric layers with unconstrained thickness, quantitative evaluation of photographic image data indicated that repeated shear deformation results in a residual increase in inter-yarn gap width. This translates into an increase in measured fabric permeabilities in multi-layer lay-ups at given compaction levels. The extent of both interrelated effects increases with increasing yarn density in the fabric and with increasing maximum angle in the shear history. Additional numerical permeability predictions indicated that the increase in permeability may be partially reversed by through-thickness fabric compression. The observations suggest that the effect of involuntary deformation of the fabric structure can result in variations in the principal permeability values by factors of up to 2.


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Item Type: Article (Commonwealth Reporting Category C)
Refereed: Yes
Item Status: Live Archive
Additional Information: Access to submitted version in accordance with the copyright policy of the publisher.
Faculty / Department / School: No Faculty
Date Deposited: 12 Jul 2017 05:58
Last Modified: 17 Aug 2017 03:02
Uncontrolled Keywords: liquid composite moulding; textile fabric; permeability; reproducibility; shear
Fields of Research : 09 Engineering > 0912 Materials Engineering > 091202 Composite and Hybrid Materials
09 Engineering > 0913 Mechanical Engineering > 091307 Numerical Modelling and Mechanical Characterisation
Socio-Economic Objective: E Expanding Knowledge > 97 Expanding Knowledge > 970109 Expanding Knowledge in Engineering
Identification Number or DOI: 10.1177/0021998314536070
URI: http://eprints.usq.edu.au/id/eprint/32698

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