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Press forming of commingled yarn based composites: The preform contribution
Chalmers University of Technology, Sweden.
2007 (English)In: Composites Science And Technology, ISSN 0266-3538, Vol. 67, no 3-4, 515-524 p.Article in journal (Refereed) Published
Abstract [en]

The process of press forming commingled yarn composites is studied and modelled based on the theory of porous media. Two sub processes are considered: (1) the wetting and compaction of individual bundles and (2) the overall preform deformation. An experimental method is introduced, to study these two sub processes separately. The experiment suppresses the fluid pressure build-up, and thus the process of wetting and bundle compaction, by draining the resin into a porous wall. In consequence, the measured response consists only of the preform contribution. Finally, the total response is simulated and tested against independent consolidation experiments. It was demonstrated that the present approach gives better predictions compared to models based on the bundle response only.

Place, publisher, year, edition, pages
2007. Vol. 67, no 3-4, 515-524 p.
Keyword [en]
B. Non-linear behaviour, C. Anelasticity, C. Computational simulation, Porous media theory, Compaction, Composite materials, Computer simulation, Mathematical models, Porous materials, Wetting, Bundle response, Commingled yarn based composites, Fluid pressure build-up, Preforming, deformation, elasticity, fiber reinforced composite, preform
National Category
Applied Mechanics
URN: urn:nbn:se:kth:diva-80034DOI: 10.1016/j.compscitech.2006.08.016ISI: 000244140500020ScopusID: 2-s2.0-33845910398OAI: diva2:496062

QC 20150624

Available from: 2012-02-09 Created: 2012-02-09 Last updated: 2015-06-24Bibliographically approved

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Toll, Staffan
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