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1.
Model simulacije obremenitev in deformacij tkanin pri polaganju
Rozalija Blekač, Jelka Geršak, Ivan Gubenšek, 2003, original scientific article

Abstract: Med procesom polaganja materiala z avtomatskim polagalnim strojem deluje na tkanino določena vlečna sila, ki je odvisna od načina odvijanja tkanine s tekstilnega navitka in vodenja preko vodilno-napenjalnih valjev polagalnega stroja do področja polaganja. Pri tem delujejo na gibajoči del tkanine natezne, tlačne in torne sile, ki povzročijo v tkanini večje all manjše natezne deformacije. Natezne obremenitve so pogojene z uporabljeno strojno opremo in parametri polaganja ter mehanskimi in fizikalnimi lastnostmi in reološkimi parametri tkanine. Nastala deformacija je odvisna od velikosti delujočih obremenitev in upora tkanine proti vlečni sili, ki učinkuje na gibajoči del tkanine pri polaganju. Ker gre za kompleksno problematiko nateznih obremenitev, ki učinkujejo na gibajoči del tkanine, na eni strani in za zahtevne relaksacijske pojave v tkanini po polaganju v krojno plast, je v prispevku podana analiza nateznih obremenitev tkanine med polaganjem in predstavljen predlog modela za simulacijo obremenitve in deformacije tkanine pri polaganju. V ta namen je izvedena študija tehnološko pogojenih nateznih obremenitev tkanine med procesom polaganja, ki so posledica na gibajoči del tkanine delujočih vlečnih, tornih in tlačnih sil pri polaganju, ter odnosa med obremenitvijo in deformacijo. Na podlagi opredeljenega odnosa med obremenitvijo in deformacijo je predlog modela za simulacijo obremenitve in deformacije tkanine pri polaganju zasnovan na metodi končnih elementov.
Keywords: tkanina, mehanske lastnosti, fizikalne lastnosti, vlečna sila, natezna obremenitev, deformacije
Published: 31.08.2017; Views: 531; Downloads: 50
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2.
The advance engineering methods to plan the behaviour of fused panel
Simona Jevšnik, Jelka Geršak, Ivan Gubenšek, 2005, original scientific article

Abstract: The purpose of this paper is to analyse some mechanical properties and parameters of drapability using different methods from two different points of research area: knowledge bases and numerical modelling using the finite element method. The approach consists of analysing some mechanical properties and parameters of drapability using different methods from two different points of research areaČ knowledge bases and numerical modelling using the finite element method. The knowledge bases, named FP_B-1 and FPO_B-2, were used to analyse the bending rigidity of fused panels. The numerical model of fused panel NMFP is used to analyse parameters of drapability. Findings - Based on the analyses of bending rigidity and draping of fused panels the conclusions indicate the significance of interaction between mechanical properties and parameters of drapability of thefused panel to garment appearance. Furthermore, the methods used present a computer approach to the study of the fused panel properties important for thecomputer-based engineering and the presentation of real behaviour of all aspects of clothes. This numerical model of a fused panel enables a 3D observation of this aspect of clothes which is a behaviour, very important contribution to the computer planning of the behaviour of produced clothes. Originality is in a better understanding of how to construct fused panels in clothing.
Keywords: clothing engineering, fabric mechanics, fusible interlining, fused panels, drapability, knowledge base, FEM
Published: 01.06.2012; Views: 1178; Downloads: 87
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3.
Okoljsko naravoslovje II : gradivo za 1. letnik
Marija Beras Slana, Danilo Slana, 2011, higher education textbook

Published: 01.06.2012; Views: 1673; Downloads: 104
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4.
Analitična in numerična določitev faktorja intezitete napetosti za Griffithovo razpoko
1989, undergraduate thesis

Keywords: enačbe, izpeljava, Griffithova razpoka, MKE
Published: 26.07.2007; Views: 1587; Downloads: 0

5.
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