TAILIEUCHUNG - Woven Fabric Engineering Part 6

Tham khảo tài liệu 'woven fabric engineering part 6', kỹ thuật - công nghệ, cơ khí - chế tạo máy phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | 7 Prediction of Elastic Properties of Plain Weave Fabric Using Geometrical Modeling Jeng-Jong Lin Department of Information management Vanung University Taiwan . 1. Introduction Fabrics are typical porous material and can be treated as mixtures of fibers and air. There is no clearly defined boundary and is different from a classical continuum for fabrics. It is complex to proceed with the theoretical analysis of fabric behavior. There are two main reasons Hearle et al. 1969 for developing the geometrical structures of fabrics. One is to be able to calculate the resistance of the cloth to mechanical deformation such as initial extension bending or shear in terms of the resistance to deformation of individual fibers. The other is that the geometrical relationships can provide direct information on the relative resistance of cloths to the passage of air or light and similarly it can provide a guide to the maximum density of packing that can be achieved in a cloth. The most elaborate and detailed account of earlier work is contained in a classical paper by Peirce Peirce 1937 . A purely geometrical model which involves no consideration of internal forces is set up by Peirce for the determination of the various parameters that were required. Beyond that the geometrical structures of knits are another hot research issue for instances for plain-knitted fabric structure Peirce Peirce 1947 Leaf and Glaskin Leaf Glaskin 1955 Munden Munden 1961 Postle Postle 1971 DemirOz and Dias Demiroz Dias 2000 Kurbak Kurbak 1998 Semnani Semnani et al. 2003 and Chamberlain Chamberlain 1949 et al. Lately Kurbak Alpyildiz propose a geometrical model for full Kurbak Alpyildiz 2009 and half Kurbak Alpyildiz 2009 cardigan structure. Both the knitted and woven fabrics are considered to be useful as a reinforcing material within composites. The geometrical structure of the plain woven fabric WF is considered in this study. Woven fabric is a two-dimension 2-D plane formation and represents the

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