Numerical Modelling of the Compressional Behaviour of Warp-knitted Spacer Fabrics

Vassiliadis, S; Kallivretaki, A; Psilla, N; Provatidis, C; Mecit, D; Roye, A

dc.contributor.author	Vassiliadis, S	en
dc.contributor.author	Kallivretaki, A	en
dc.contributor.author	Psilla, N	en
dc.contributor.author	Provatidis, C	en
dc.contributor.author	Mecit, D	en
dc.contributor.author	Roye, A	en
dc.date.accessioned	2014-03-01T01:58:56Z
dc.date.available	2014-03-01T01:58:56Z
dc.date.issued	2009	en
dc.identifier.issn	1230-3666	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/28784
dc.subject	spacer fabric	en
dc.subject	compression resistance	en
dc.subject	Finite Element Method	en
dc.subject.classification	Materials Science, Textiles	en
dc.title	Numerical Modelling of the Compressional Behaviour of Warp-knitted Spacer Fabrics	en
heal.type	journalArticle	en
heal.language	English	en
heal.publicationDate	2009	en
heal.abstract	Warp-knitted spacer fabrics are successfully introduced in building constructions as a thin sheet component reinforcement for wall panels, exterior siding, roofing tiles, flooring tiles, pressure pipes etc. Their structural advantages support an armature system of highly oriented yarns and easy cement embodiment for the production of a composite. The compression resistance of spacer fabric is a major advantage with respect to the performance and composite manufacturing process. The optimum compression performance of spacer fabrics varies according to the requirements of the application in question. This investigation focused on the prediction of the compression performance by two-scale (micro and macro) mechanical analysis using the Finite Element Method (FEM). Micromechanical analysis of the unit cell of the spacer layer was conducted for the calculation of its compression resistance. The apparent mechanical properties of the outer layers were also evaluated by micromechanical modelling. The respective properties of the outer and spacer layers are introduced in the macromechanical model of the sample for analysis of the complex deformation during simulation of the compression test, thus realising the second stage of modelling. The computational method proposed is evaluated by comparison of the load - displacement curves resulting from the simulation and experimental data of compression. Moreover, the effect of the structural and physical parameters of the sample on the compression resistance was investigated.	en
heal.publisher	INST CHEMICAL FIBRES	en
heal.journalName	FIBRES & TEXTILES IN EASTERN EUROPE	en
dc.identifier.isi	ISI:000272607500012	en
dc.identifier.volume	17	en
dc.identifier.issue	5	en
dc.identifier.spage	56	en
dc.identifier.epage	61	en