Spatial modelling of 3D-woven textiles
2012 (English)In: Composite structures, ISSN 0263-8223, Vol. 94, no 5, 1495-1502 p.Article in journal (Refereed) Published
When analysing for instance permeability and mechanical behaviour of advanced textiles, a representative description of the textiles' architecture is desired. Realistic geometric representations of textiles are however often either difficult to obtain due to limitations in modelling tools, or judged unfeasible to generate due to unreasonable modelling efforts. In this paper a scheme is presented that enables modelling of the internal strand geometry including details of the strand path and smoothly varying cross-section size and shape, on a meso-scale. The main modelling artifice is to initially model the strand perimeters as inflatable tubes in an explicit finite element simulation. The tubes are initially made slender to avoid strand inter-penetration, and then expanded under general contact conditions until the desired volume fraction of strand is reached. For validation a model is compared with pictures from a computer tomography scan of a 3-dimensionally woven carbon fibre preform. The correlation between the simulated geometry and the real sample is striking. The results also indicate that the approach is relatively robust in terms of sensitiveness to variations of input data and starting conditions.
Place, publisher, year, edition, pages
2012. Vol. 94, no 5, 1495-1502 p.
3D weave, 3D textile, Composites, Geometric model, Crimp, Preform
Textile, Rubber and Polymeric Materials Applied Mechanics
IdentifiersURN: urn:nbn:se:kth:diva-70399DOI: 10.1016/j.compstruct.2011.12.003ISI: 000302980400002ScopusID: 2-s2.0-84858699039OAI: oai:DiVA.org:kth-70399DiVA: diva2:486226
FunderTrenOp, Transport Research Environment with Novel Perspectives
QC 201201312012-01-302012-01-302013-04-10Bibliographically approved