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Formability optimisation of fabric preforms by controlling material draw-in through in-plane constraints

Chen, S.; Harper, L.T.; Endruweit, A.; Warrior, N.A.


S. Chen

Associate Professor - Composites Manufacturing

Professor of Mechanical Engineering & Head of Research Division


A genetic algorithm is coupled with a finite element model to optimise the arrangement of constraints for a composite press-forming study. A series of springs are used to locally apply in-plane tension through clamps to the fibre preform to control material draw-in. The optimisation procedure seeks to minimise local in-plane shear angles by determining the optimum location and size of constraining clamps, and the stiffness of connected springs. Results are presented for a double-dome geometry, which are validated against data from the literature. Controlling material draw-in using in-plane constraints around the blank perimeter is an effective way of homogenising the global shear angle distribution and minimising the maximum value. The peak shear angle in the double-dome example was successfully reduced from 48.2 degrees to 37.2 degrees following a two-stage optimisation process.


Chen, S., Harper, L., Endruweit, A., & Warrior, N. (2015). Formability optimisation of fabric preforms by controlling material draw-in through in-plane constraints. Composites Part A: Applied Science and Manufacturing, 76,

Journal Article Type Article
Acceptance Date May 7, 2015
Online Publication Date May 14, 2015
Publication Date Sep 30, 2015
Deposit Date Aug 3, 2017
Publicly Available Date Aug 3, 2017
Journal Composites Part A: Applied Science and Manufacturing
Print ISSN 1359-835X
Electronic ISSN 1359-835X
Publisher Elsevier
Peer Reviewed Peer Reviewed
Volume 76
Keywords Fabrics/textiles, Finite element analysis (FEA), Forming
Public URL
Publisher URL


Final Accepted Text _ Blank Holder Optimisation.pdf (1.4 Mb)

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