Mechanical behavior and deformation micromechanisms of polypropylene nonwoven fabrics as a function of temperature and strain rate

Deformation and energy dissipation mechanisms of needle-punched nonwoven fabrics: A multiscale experimental analysis

“…Detailed analyses of the micromechanisms of deformation have been mainly carried out in nonwovens with brittle interfiber bonds generated by chemical or thermal bridges. This is the case of paper, made up of random network of cellulose fibers hold together by hydrogen bonds (Cox, 1952;Bronkhorst, 2003;Isaksson et al, 2006;Schmied et al, 2013), glass fiber felts, in which fiber bundles are joined by means of a polymeric binder (Ridruejo et al, 2010), and polypropylene nonwovens, where interfiber bonds are created by local thermal fusion at the fiber contacts (Rawal et al, 2007;Ridruejo et al, 2011;Jubera et al, 2014). In all these cases, brittle interfiber bond fracture is the first damage mechanism, that takes place at very low strains and spreads rapidly throughout the network.…”

Influence of fiber orientation on the ballistic performance of needlepunched nonwoven fabrics

“…The initial studies of the structural performance of nonwoven fabrics were focused on paper (Bronkhorst, 2003;Hägglund and Isaksson, 2006;Isaksson et al, 2006Isaksson et al, , 2004 but more recent analyses have dealt with glass (Ridruejo et al, 2010), polyamide (Silberstein et al, 2012), polypropylene (Farukh et al, 2013;Jubera et al, 2014;Ridruejo et al, 2011Ridruejo et al, , 2015 and polyethylene (Martínez-Hergueta et al, 2015;Raina and Linder, 2014;Raval et al, 2013) nonwoven fabrics. These investigations found that the micromechanisms of deformation and fracture depend on the interaction of a number of factors including fiber uncurling, bond failure and fiber reorientation as well as fiber sliding and fracture.…”

A multiscale micromechanical model of needlepunched nonwoven fabrics

“…The sequence of activation of these processes and their interaction depend on a number of factors, such as the nature of the fibers and of the interfiber bonds ( Jubera et al, 2014;Kulachenko and Uesaka, 2012;Ridruejo et al, 2010;. The analysis of the failure mechanisms is further complicated by the disordered microstructure of the nonwoven and by the development in some cases of non-affine deformation i.e.…”

“…Experimental studies to analyze the dominant deformation and failure micromechanisms were initially focused on paper ( Bronkhorst, 2003;Hägglund and Isaksson, 2006;Isaksson et al, 20 06;20 04 ) and have been recently extended to other nonwoven fabrics with brittle interfiber bonds created by chemical forces, polymeric binders or local fusion ( Farukh et al, 2013;Jubera et al, 2014;Ridruejo et al, 2010;Silberstein et al, 2012 ). These investigations were fundamental to establish the relationship between the microstructure and the mechanical properties and also to develop microstructure-based constitutive equations, as http://dx.doi.org/10.1016/j.ijsolstr.2016.06.020 0020-7683/© 2016 Elsevier Ltd. All rights reserved.…”