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Frequency domain modelling of transversely isotropic viscoelastic fibre-reinforced plastics

Liebig, Wilfried V. ORCID iD icon 1; Jackstadt, Alexander ORCID iD icon 1; Sessner, Vincent 2; Weidenmann, Kay A. 2; Kärger, Luise 1
1 Institut für Fahrzeugsystemtechnik (FAST), Karlsruher Institut für Technologie (KIT)
2 Karlsruher Institut für Technologie (KIT)

Abstract (englisch):

The subject of this work is the development of an approach describing the transversely isotropic viscoelastic material behaviour of carbon-fibre-reinforced plastics (CFRP) in the frequency domain. To identify the composite's macro-scopic transversely isotropic viscoelastic material behaviour, micro-scale numerical studies are performed on statistically representative volume elements (SRVE) under periodic boundary conditions to obtain master curves of five independent components of the homogenised complex stiffness tensor in the frequency domain. These homogenised properties are then depicted by a generalised and by a generalised fractional Maxwell model (GMM, GFMM) building the dataset for parametrising user-defined material models implemented in commercial finite element method (FEM) software. The material models are thus able to capture the material behaviour over multiple orders of magnitude in frequency with a single set of parameters each. Consequently, the conversion of time-dependent data is avoided. A comparison between experimental and numerical results is carried out and further studies on the influence of the fibre volume content are performed. ... mehr

DOI: 10.1016/j.compscitech.2019.04.019
Zitationen: 15
Web of Science
Zitationen: 13
Zitationen: 15
Zugehörige Institution(en) am KIT Institut für Fahrzeugsystemtechnik (FAST)
Institut für Angewandte Materialien – Werkstoffkunde (IAM-WK)
Publikationstyp Zeitschriftenaufsatz
Publikationsmonat/-jahr 08.2019
Sprache Englisch
Identifikator ISSN: 0266-3538
KITopen-ID: 1000095733
Erschienen in Composites science and technology
Verlag Elsevier
Band 180
Seiten 101–110
Nachgewiesen in Scopus
Web of Science
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