Shear behavior of a shear thickening fluid-impregnated aramid fabrics at high shear rate

Na, W., Ahn, H., Han, S., Harrison, P., Park, J. K., Jeong, E. and Yu, W.-R. (2016) Shear behavior of a shear thickening fluid-impregnated aramid fabrics at high shear rate. Composites Part B: Engineering, 97, pp. 162-175. (doi:10.1016/j.compositesb.2016.05.017)

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Abstract

Shear-thickening fluid-impregnated aramid (STF-im-AR) fabrics have been manufactured for advanced soft body armor applications for which they provide improved ballistic and stab resistances. It is not yet clear whether or not such improvements can be attributed solely to the STF. In this study, the rate-dependent behavior of an STF-im-AR fabric was investigated at the fabric level, using uniaxial tensile, bias-extension, and picture-frame tests. Rate-dependent behavior of the STF-im-AR fabric was observed during uniaxial tensile testing; however, the effect of the STF treatment was slight and consistent with only the inherent effect of the polymeric nature of its constituent fibers. The shear rigidity of the STF-im-AR fabric increased, due to the presence of the STF and the sensitivity of the fabric's shear stiffness to changes in the shear strain rate also increased slightly. This rate-sensitive shear stiffness of STF-im-AR fabrics may contribute to improved ballistic and stab resistances.

Item Type:Articles
Additional Information:This work was supported by Defense Acquisition Program Administration and Agency for Defense Development under the contract UE135099GD.
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Harrison, Dr Philip
Authors: Na, W., Ahn, H., Han, S., Harrison, P., Park, J. K., Jeong, E., and Yu, W.-R.
College/School:College of Science and Engineering > School of Engineering > Systems Power and Energy
Journal Name:Composites Part B: Engineering
Publisher:Elsevier
ISSN:1359-8368
Published Online:10 May 2016
Copyright Holders:Copyright © 2016 Elsevier Ltd.
First Published:First published in Composites Part B: Engineering 97: 162-175
Publisher Policy:Reproduced in accordance with the publisher copyright policy

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