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SUMMARY:Multiscale Modelling of Nonwoven Fabrics - Dr Emrah Demirci\, Loug
 hborough University
DTSTART:20131011T130000Z
DTEND:20131011T140000Z
UID:TALK47871@talks.cam.ac.uk
CONTACT:Ms Helen Gardner
DESCRIPTION:Keywords: nonwoven\; bicomponent fibre\; finite element\; visc
 osity\; anisotropy\; polymer\n\nABSTRACT\nMultiscale numerical modelling o
 f advanced materials gained importance in the last decade with increasing 
 energy concerns related to weight and efficiency of the systems. Such mate
 rials have heterogeneous microstructure with direction-dependent mechanica
 l properties. Nonwovens\, bones\, fibre-reinforced composites are a few ex
 amples of advanced materials with complex mechanical behaviour at various 
 length scales. As an advanced material\, nonwovens are the focus of this s
 eminar in which two practical numerical modelling schemes are introduced t
 o simulate complex mechanical performance of these materials.\n  \nHaving 
 a unique microstructure composed of two distinct regions with dissimilar c
 haracteristics (bond points and a fibre matrix)\, polymer-based nonwovens 
 exhibit complex mechanical properties which are different from those of wo
 ven fabrics and composites [1]. This seminar aims to explain two finite el
 ement modelling approaches at different length scales to simulate anisotro
 pic viscous elastic-plastic mechanical behaviour of thermally bonded nonwo
 vens with core/sheath type bicomponent fibres. The algorithms and the nume
 rical models introduced in this seminar can be used in design and optimiza
 tion of nonwoven products.\n\nReferences\n[1] Demirci\, E.\, Acar\, M.\, P
 ourdeyhimi\, B. and Silberschmidt\, V.V. (2011)\, “Finite element modell
 ing of thermally bonded bicomponent fibre nonwovens: Tensile behaviour”\
 , Computational Materials Science\, 50 (4)\, pp 1286-1291\,\nhttp://dx.doi
 .org/10.1016/j.commatsci.2010.02.039
LOCATION:Oatley Seminar Room\, Department of Engineering
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