Characterization of the biaxial response of a thermoplastic ABS Sheet using DIC-instrumented bubble inflation technique

Characterization of the biaxial response of a thermoplastic ABS Sheet using DIC-instrumented bubble inflation technique


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Abstract. During the forming of a product with the thermo-vacuum forming process, a heated thermoplastic sheet is subjected to a complex and dynamic multi-axial deformation mode. In order to measure the relevant mechanical response of the material during processing, an experimental method that applies the relevant modes of deformation during forming is required. The bubble inflation technique combined with digital image correlation (DIC) allows having a complete data set regarding displacement, principal strains as well as local thickness reduction for material characterization. Bubble formation as a function of temperature would be investigated to determine the nonlinear terms of a material constitutive model for numerical simulation.

Vacuum Forming Process, Large Rapid Deformation, Nonlinear Behavior, DIC

Published online 4/19/2023, 10 pages
Copyright © 2023 by the author(s)
Published under license by Materials Research Forum LLC., Millersville PA, USA

Citation: VAREDI Rasoul, BUFFEL Bart, DESPLENTERE Frederik, Characterization of the biaxial response of a thermoplastic ABS Sheet using DIC-instrumented bubble inflation technique, Materials Research Proceedings, Vol. 28, pp 1887-1896, 2023


The article was published as article 204 of the book Material Forming

Content from this work may be used under the terms of the Creative Commons Attribution 3.0 license. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.

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