Frictional behaviour of non-crimp fabrics (NCFs) in contact with a forming tool

Avgoulas, E.I., Mulvihill, D.M. , Endruweit, A., Sutcliffe, M.P.F., Warrior, N.A., De Focatiis, D.S.A. and Long, A.C. (2018) Frictional behaviour of non-crimp fabrics (NCFs) in contact with a forming tool. Tribology International, 121, pp. 71-77. (doi:10.1016/j.triboint.2018.01.026)

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Abstract

Microscopic observation and analysis are used to examine the role that contact conditions play in determining the frictional behaviour of non-crimp fabrics (NCFs). The true fibre contact length is measured over a range of normal pressures. For the NCF considered, the contact length is 67% lower than for a corresponding unidirectional tow-on-tool contact at a pressure of 240 kPa. The difference in contact behaviour is associated with the fabric architecture, specifically stitching and gaps between tows. These microscopic observations are used to predict friction using a constant interface shear strength model. These predictions are found to compare well with macroscopic friction measurements taken using a sliding sled arrangement, once the roughness of the sled tool is taken into account.

Item Type:Articles (Letter)
Additional Information:The authors acknowledge the financial support provided by the Engineering and Physical Sciences Research Council (EPSRC, grant references EP/K032798/1 and EP/K03264X/1). We would also like to acknowledge the contribution of our industrial collaborators at Hexcel, Jaguar Land Rover and Granta Design Ltd.
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Mulvihill, Dr Daniel
Authors: Avgoulas, E.I., Mulvihill, D.M., Endruweit, A., Sutcliffe, M.P.F., Warrior, N.A., De Focatiis, D.S.A., and Long, A.C.
Subjects:T Technology > TJ Mechanical engineering and machinery
T Technology > TS Manufactures
College/School:College of Science and Engineering > School of Engineering > Systems Power and Energy
Journal Name:Tribology International
Publisher:Elsevier
ISSN:0301-679X
ISSN (Online):1879-2464
Published Online:03 February 2018
Copyright Holders:Copyright © 2018 The Authors
First Published:First published in Tribology International 121:71-77
Publisher Policy:Reproduced under a Creative Commons License

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