COMPARISON OF VIRTUAL FIELDS METHOD, PARALLEL NETWORK MATERIAL MODEL AND FINITE ELEMENT UPDATING FOR MATERIAL PARAMETER DETERMINATION

Authors

  • Florian Dirisamer Institute of Polymer Product Engineering, Johannes Kepler University Linz, Altenbergstrasse 69, 4040 Linz, Austria
  • Umut D. Çakmak Institute of Polymer Product Engineering, Johannes Kepler University Linz, Altenbergstrasse 69, 4040 Linz, Austria
  • Imre Kállai Institute of Polymer Product Engineering, Johannes Kepler University Linz, Altenbergstrasse 69, 4040 Linz, Austria
  • Martín Machado Institute of Polymer Product Engineering, Johannes Kepler University Linz, Altenbergstrasse 69, 4040 Linz, Austria
  • Zoltán Major Institute of Polymer Product Engineering, Johannes Kepler University Linz, Altenbergstrasse 69, 4040 Linz, Austria

DOI:

https://doi.org/10.14311/APP.2017.7.0007

Abstract

Extracting material parameters from test specimens is very intensive in terms of cost and time, especially for viscoelastic material models, where the parameters are dependent of time (frequency), temperature and environmental conditions. Therefore, three different methods for extracting these parameters were tested. Firstly, digital image correlation combined with virtual fields method, secondly, a parallel network material model and thirdly, finite element updating. These three methods are shown and the results are compared in terms of accuracy and experimental effort.

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Published

2016-12-09

Issue

Vol. 7 (2017): ExNum 2016

Section

Articles

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