Title: Consistency of strain fields and thickness reduction in thermoforming experiments through 3D DIC
Authors: Van Mieghem, Bart
Lava, Pascal
Debruyne, Dimitri
Ivens, Jan
Van Bael, Albert
Issue Date: 8-Jul-2014
Conference: International conference on experimental mechanics edition:16 location:Cambridge date:07-11 July 2014
Abstract: Thermoforming, i.e. a generic term that refers to many techniques for the production of plastic parts starting from a flat sheet that is softened by heat and draped into or onto a mould [1], is the third most used thermoplastic polymer processing technique next to injection moulding and extrusion. Digital image correlation (DIC), which is an optical noncontact technique to measure surface deformations and strains, has already proven to be a valuable technique [2] to assess the homogeneity of the wall thickness during the different thermoforming process steps (heating, blank transfer, forming and cooling). In this contribution it is verified whether the calculated wall thickness values are independent of
the adopted strain definitions, as they should.
Publication status: published
KU Leuven publication type: IMa
Appears in Collections:Materials Technology TC, Technology Campus Diepenbeek
Technologiecluster Materialentechnologie
Materials Technology TC, Technology Campuses Ghent and Aalst
Materials Technology TC, Technology Campus De Nayer Sint-Katelijne-Waver

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