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Determination of the Elastic Constants of Plain Woven Fabrics by a Tensile Test in Various Directions

Research and development

Authors:

  • Penava Željko
    Department of Textile Design and Management, Faculty of Textile Technology, University of Zagreb, Zagreb, Croatia
  • Šimić Penava Diana
    Department of Engineering Mechanics, Faculty of Civil Engineering, University of Zagreb, Zagreb, Croatia
  • Knezic Željko
    Department of Textile Design and Management, Faculty of Textile Technology, University of Zagreb, Zagreb, Croatia

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Abstract:

In this paper the values of elastic constants of woven fabrics for different angles of extension direction were analysed. Four types of fabric samples of different raw material composition and the same type of weave were tested under tensile forces in seven directions oriented with a 15° increment with respect to the weft direction. The elasticity modulus and Poisson’s ratio of the woven fabrics were determined experimentally in a laboratory. Based on the experimentally obtained values, theoretically calculated elastic constants for arbitrarily chosen fabric directions were calculated. A good agreement between the experimental results and values of the elastic constants calculated was shown, hence the theoretical equations can be used with high accuracy to calculate the elastic constants of fabric in various directions. Therefore the measurements need to be undertaken when the tensile force is acting on the fabric only in the warp, weft and at an angle of 45°.

Tags:

woven fabric, anisotropic, modulus of elasticity, Poisson’s ratio, elastic constants.

Citation:

Penava Ž, Šimić Penava D, Knezić Ž. Determination of the Elastic Constants of Plain Woven Fabrics by a Tensile Test in Various Directions.
FIBRES & TEXTILES in Eastern Europe 2014, Vol. 22, No. 2(104): 57-63.

Published in issue no 2 (104) / 2014, pages 57–63.

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