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

Avgoulas, Evangelos I.; Mulvihill, Daniel M.; Endruweit, Andreas; Sutcliffe, Michael P.F.; Warrior, Nicholas A.; De Focatiis, Davide S.A.; Long, Andrew C.

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.

Citation

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

• Journal Article Type: Article
• Acceptance Date: Jan 11, 2018
• Online Publication Date: Feb 3, 2018
• Publication Date: May 30, 2018
• Deposit Date: Dec 19, 2018
• Publicly Available Date: Dec 20, 2018
• Journal: Tribology International
• Print ISSN: 0301-679X
• Publisher: Elsevier
• Peer Reviewed: Peer Reviewed
• Volume: 121
• Pages: 71-77
• DOI: https://doi.org/10.1016/j.triboint.2018.01.026
• Keywords: Mechanical Engineering; Mechanics of Materials; Surfaces, Coatings and Films; Surfaces and Interfaces
• Public URL: https://nottingham-repository.worktribe.com/output/1429097
• Publisher URL: https://www.sciencedirect.com/science/article/pii/S0301679X18300264?via%3Dihub