Measuring and Modelling the In-Plane Bending Stiffness and Wrinkling Behaviour of Engineering Fabrics

Harrison, P. , Anderson, D., Alvarez, M. F., Bali, E. and Mateos, Y. (2016) Measuring and Modelling the In-Plane Bending Stiffness and Wrinkling Behaviour of Engineering Fabrics. In: EUROMECH Colloquium 569: Multiscale Modeling of Fibrous and Textile Materials, Chatenay-Malabry, France, 5-7 April 2016,

Abstract

In this investigation two simple tests are conducted to characterise the shear, out-of-plane bending stiffness and in-plane bending stiffness of engineering fabrics and to investigate their wrinkling response during shear. A cantilever bending test [1] is first used to measure the out-of-plane bending stiffness while a modified version of the uniaxial bias extension (UBE) test is used to explore both the in-plane shear and the in-plane bending stiffness of the fabric (see Figure 1a). An estimate of the shear resistance of the fabric is obtained using normalisation theory [2]. In [3] it was shown that, for a given tensile stiffness in the two fibre directions, the in-plane deformation kinematics of the specimen are determined by the ratio between the fabric’s in-plane shear stiffness and in-plane bending stiffness. Thus, by measuring the fabric kinematics together with the shear stiffness of the fabric, the in-plane bending stiffness of the fabric is inferred using an inverse modelling approach. This is the first occasion that the in-plane bending stiffness of an engineering fabric has been estimated based on experimental data.

• Item Type: Conference Proceedings
• Status: Published
• Refereed: Yes
• Glasgow Author(s) Enlighten ID: Harrison, Dr Philip
• Authors: Harrison, P., Anderson, D., Alvarez, M. F., Bali, E., and Mateos, Y.
• College/School: College of Science and Engineering > School of Engineering > Systems Power and Energy

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