Browsing by Author "Das, Dipayan"

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    Computational methodology for determination of yarn twist and diameter
    (2019-05-09) Neckář, Bohuslav; Das, Dipayan
    In this article, a set of theoretical relations among yarn count, twist, and diameter is derived based on a simplified mechanics of fibre compression. It is found that the basic quantity that determines these relations in yarns is the fiber packing density. The theoretical results are found to be in good agreement with the experimental data. Also, how to use these relations for industrial production of yarns is demonstrated with the help of practical examples.
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    Mechanics of parallel fibre bundles
    (Technická Univerzita v Liberci, 2006-01-01) Neckář, Bohuslav; Das, Dipayan
    This theoretical work deals with the mechanics of parallel fibre bundles, on the basis of the fact that each fibre in the bundle possesses different tensile behaviour. As a consequence of this, the tensile behaviour of a blended fibre bundle is found to be a different than that obtained from Hamburger's theory [3]. It is also observed that the average force per fibre in the bundle, the breaking force utilisation coefficient, and the breaking strain utilisation coefficient depend only on the coefficient of variation of the fibre breaking strain.
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    Yarn strength as a stochastic process
    (Technická Univerzita v Liberci, 2005-01-01) Das, Dipayan