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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.

Authors

S. Chen

LEE HARPER LEE.HARPER@NOTTINGHAM.AC.UK
Associate Professor - Composites Manufacturing

NICHOLAS WARRIOR nick.warrior@nottingham.ac.uk
Professor of Mechanical Engineering & Head of Research Division



Abstract

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.

Journal Article Type Article
Publication Date Sep 30, 2015
Journal Composites Part A: Applied Science and Manufacturing
Print ISSN 1359-835X
Electronic ISSN 1359-835X
Publisher Elsevier
Peer Reviewed Peer Reviewed
Volume 76
APA6 Citation 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, https://doi.org/10.1016/j.compositesa.2015.05.006
DOI https://doi.org/10.1016/j.compositesa.2015.05.006
Keywords Fabrics/textiles, Finite element analysis (FEA), Forming
Publisher URL http://www.sciencedirect.com/science/article/pii/S1359835X15001608?via%3Dihub
Copyright Statement Copyright information regarding this work can be found at the following address: http://creativecommons.org/licenses/by-nc-nd/4.0

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Final Accepted Text _ Blank Holder Optimisation.pdf (1.4 Mb)
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Copyright Statement
Copyright information regarding this work can be found at the following address: http://creativecommons.org/licenses/by-nc-nd/4.0





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