Characterization of the dynamic friction of woven fabrics: Experimental methods and benchmark results

Characterisation of the mesoscopic and macroscopic friction behaviours of glass plain weave reinforcement

“…Consequently, understanding the friction behaviour between reinforcements is necessary so as to understand, master and optimize the first forming step in LCM processes. A growing number of studies have therefore been conducted on the friction behaviour between fibrous reinforcements or on the relationship between friction and formability [1,2,[4][5][6][7][8]. However, since it is a complex issue due to the multi-scale fibrous nature of the reinforcements, considerable research remains to be done in order to fully understand e this phenomenon.…”

“…These materials have many similarities with the textile family but also differences such as material constitution, unit cell size and some of the mechanisms involved during their frictional behaviour. A recent benchmark compared results obtained with different devices developed by teams working on this topic [6]. Experimental tests on fabric/metal friction performed by the different teams on Twintex reinforcement exhibited an effect of pressure and velocity on the dynamic friction coefficient.…”

Towards comprehensive characterisation and modelling of the forming and wrinkling mechanics of engineering fabrics

“…• the tensile stiffness in each of the two fibre directions (Boisse et al, 2001;Potluri and Thammandra, 2007) • the fabric shear stiffness (resistance to trellis shear) (Boisse et al, 2016;Cao et al, 2008;Harrison et al, 2012Harrison et al, , 2008 • the out-of-plane bending stiffness in each of the two fibre directions (Cooper, 1960;de Bilbao et al, 2010;Harrison, 2016;Hu, 2004;ISO, 1998;Lammens et al, 2014;Lomov et al, 2003;Peirce, 1930;Plaut, 2015) • the in-plane bending stiffness in each of the two fibre directions (D'Agostino et al, 2015;Dell'Isola and Steigmann, 2014;Ferretti et al, 2014;Giorgio, 2016;Giorgio et al, 2016;Harrison, 2016;Scerrato et al, 2016;Steigmann and Dell'Isola, 2015;Turco et al, 2016) • the torsional stiffness in each of the two fibre directions (Cooper, 1960;D'Agostino et al, 2015;Giorgio, 2016;Giorgio et al, 2016;Lomov and Verpoest, 2006;Steigmann and Dell'Isola, 2015) • inter-ply and tool-ply friction (Sachs et al, 2014) • the thickness of the sheet (Chen and Ye, 2006;Pazmino et al, 2014) In this investigation, experimental identification of the shear stiffness, out-of-plane bending, in-plane bending and torsional stiffness is demonstrated using just two simple tests; a cantilever bending test (Cooper, 1960;Harrison, 2016;…”

Reibverhalten von trockenen Faserstrukturen aus einem direkten Faserablageprozess

“…In den meisten Fällen sind dabei flächi-ge Textilien wie Gewebe oder Gelege Gegenstand der Versuche, häufig in Verbindung mit einem Matrixsystem als Prepreg (thermoplastisch oder duromer) [13,14,[24][25][26][27][28][29][30][31]. Die untersuchten Reibpaarungen sind in erster Linie Faser bzw.…”

“…Dieses bei thermoplastischen Schmelzen übliche Verhalten lässt sich allerdings nicht nur bei der Paarung P/P und P/M [25,29] beobachten, sondern wurde auch für F/F und F/M nachgewiesen [13,28,30]. Die wohl wichtigste Einflussgröße auf den Koeffizienten der Reibung ist allerdings die Faserorientierung in Relation zu der Abzugsrichtung.…”