CUED Publications database

Experimental measurement of wrinkle formation during draping of non-crimp fabric

Arnold, SE and Sutcliffe, MPF and Oram, WLA (2016) Experimental measurement of wrinkle formation during draping of non-crimp fabric. Composites Part A: Applied Science and Manufacturing, 82. pp. 159-169. ISSN 1359-835X

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© 2015 Elsevier Ltd. All rights reserved. A rig and image analysis methodology is described to characterise wrinkle formation during draping of non-crimp fabrics. The circular fabric blank is draped over a male hemispherical mould, partly constrained by a circular clamping ring around the periphery of the blank. The three-dimensional shape of the fabric is derived from a shape-from-focus analysis of a stack of photographs of the deformed blank. Wrinkles are identified from the deviation of the shape from a smoothed shape. Wrinkle formation is strongly dependent on the fabric architecture and increases progressively with increased punch displacement. Triaxial fabrics have the highest wrinkle amplitude, unidirectional and 0/90°biaxial fabrics the lowest amplitude. The clamping force reduces the wrinkling for some fabrics but, for the maximum force applied, is not effective at eliminating wrinkling.

Item Type: Article
Divisions: Div C > Biomechanics
Depositing User: Cron Job
Date Deposited: 17 Jul 2017 19:33
Last Modified: 22 May 2018 07:15