[직/편성물] A Micromechanical Model for Slit-damaged Braided Fabric Air-beams 출판일 : 2005.07.01 저자 : John N. Rossettos, Thomas A. Godfrey 서지사항 : Textile Research Journal, Volume75, No.7(2005), 562페이지 등록일 : 2012.01.25 I 조회수 : 734 작성자 : admin |
A micromechanical model has been developed that will allow the study of a slit-damaged
braided fabric air-beam structure. As such, the relevant system of non-dimensional ordinary
differential equations is derived and solutions are given for the stress concentration near
the broken yarns. This knowledge will contribute to the prediction of damage growth and the
ability to compare different fabric materials for their damage tolerance. A simplification of the
analysis has been shown to be possible when a parameter, e, the ratio of yarn tensions
due to inflation to the yarn stiffness is small, approaching zero. In such a case, the
equations for the braided fabric can be reduced to those of the plain weave fabric, so that
the stress concentrations are the same as those for woven fabrics. As it turns out, an
important result of the present analysis is that the stress concentration factor is, in fact,
independent of the parameter, e, and the helix angle of the braided fabrics. This means that
much of what has been learned in the study of damage in woven fabrics can be used for
braided fabrics.
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