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Advances in Materials Science and Engineering
Volume 2013, Article ID 786769, 9 pages
http://dx.doi.org/10.1155/2013/786769
Research Article

Modelling the Shear-Tension Coupling of Woven Engineering Fabrics

1School of Engineering, University of Glasgow, Glasgow G12 8QQ, UK
2Department of Materials Science and Engineering, Seoul National University, Seoul 151-742, Republic of Korea

Received 2 January 2013; Accepted 10 February 2013

Academic Editor: Abbas Milani

Copyright © 2013 F. Abdiwi et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

An approach to incorporate the coupling between the shear compliance and in-plane tension of woven engineering fabrics, in finite-element-based numerical simulations, is described. The method involves the use of multiple input curves that are selectively fed into a hypoelastic constitutive model that has been developed previously for engineering fabrics. The selection process is controlled by the current value of the in-plane strain along the two fibre directions using a simple algorithm. Model parameters are determined from actual experimental data, measured using the Biaxial Bias Extension test. An iterative process involving finite element simulations of the experimental test is used to normalise the test data for use in the code. Finally, the effectiveness of the method is evaluated and shown to provide qualitatively good predictions.