Hygrothermal viscoelastic material characterisation of unidirectional continuous carbon-fibre reinforced polyamide 6
Y. L.M. van Dijk (Student TU Delft)
Thomas Grätzl (BMW Group)
Morteza Abouhamzeh (TU Delft - Structural Integrity & Composites)
L. Kroll (Technische Universität Chemnitz)
S. Shroff (TU Delft - Aerospace Structures & Computational Mechanics)
More Info
expand_more
Other than for strictly personal use, it is not permitted to download, forward or distribute the text or part of it, without the consent of the author(s) and/or copyright holder(s), unless the work is under an open content license such as Creative Commons.
Abstract
This paper presents results of material characterisation experiments on the hygrothermal viscoelastic behaviour of unidirectional laminates of continuous carbon-fibre reinforced polyamide 6. The material behaviour when subjected to the automotive painting process is of interest. Coefficients of thermal- and -moisture expansion were determined from dilatometer experiments and micrometer measurements together with weighing, respectively. Diffusion coefficients were generated from thermogravimetric analysis and fitted with the Arrhenius equation. Dynamic mechanical analysis and digital image correlation of quasi-static tensile tests were performed to obtain a relaxation curve and a major Poisson's ratio, respectively. The Williams-Landel-Ferry equation was fitted to the time shift factors.