caa a22 4500 463224272 CHVBK 20180405153222.0 cr unu---uuuuu 170326e20070501xx s 000 0 eng 10.1007/s10853-006-1357-0 doi (NATIONALLICENCE)springer-10.1007/s10853-006-1357-0 Properties of bonded-polypropylene-bead foams: data and modelling [Elektronische Daten] [N. Mills, A. Gilchrist] Various mechanical properties (uniaxial compression, Poisson's ratio, indentation resistance) were measured for both expanded polypropylene (EPP) foam and bonded-polypropylene-bead foam. Finite Element Analysis, used on Body Centred Cubic (BCC) lattice models of uniform sized beads, predicted that the compressive response of EPP was hardly affected by the small volume fraction of inter-bead channels, whereas the bonded-bead foam with 25% porosity should have a near-linear compressive impact response. The foam lateral expansion on compression was predicted to be less than 3.5%, which was confirmed by experiment. Computational Fluid Dynamics was used to predict the air permeability of the models. An overlapping sphere model confirmed an earlier analysis, whereas a wet Kelvin foam model gave slightly lower permeabilities. The permeability increases with the square of the bead diameter and with the 2.6th power of the porosity. Springer Science+Business Media, LLC, 2007 Mills N. Department of Metallurgy and Materials, University of Birmingham, B15 2TT, Birmingham, UK aut Gilchrist A. Department of Metallurgy and Materials, University of Birmingham, B15 2TT, Birmingham, UK aut Journal of Materials Science Kluwer Academic Publishers-Plenum Publishers; http://www.springer-ny.com 42/9(2007-05-01), 3177-3189 0022-2461 42:9<3177 2007 42 10853 https://doi.org/10.1007/s10853-006-1357-0 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10853-006-1357-0 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Mills N. Department of Metallurgy and Materials, University of Birmingham, B15 2TT, Birmingham, UK aut NATIONALLICENCE 700 1- Gilchrist A. Department of Metallurgy and Materials, University of Birmingham, B15 2TT, Birmingham, UK aut NATIONALLICENCE 773 0- Journal of Materials Science Kluwer Academic Publishers-Plenum Publishers; http://www.springer-ny.com 42/9(2007-05-01), 3177-3189 0022-2461 42:9<3177 2007 42 10853 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer