Modelling of damage mechanisms of short fibre reinforced polymers using X-ray CT

Dietmar Salaberger, Stefan Oberpeilsteiner, Johann Kastner, Thomas Koch, Martin Palmstingl

Research output: Chapter in Book/Report/Conference proceedingsConference contribution

Abstract

This work deals with the characterization and modeling of fibers in short fiber reinforced polymers by means of X-ray computed tomography (XCT). Taking into account the actual fiber network within a component it is possible to achieve exact results for stress analyses. Within the XCT device a tensile testing stage was mounted which was used to test the specimens up to different loads. Between the increases of load, XCT scans were performed to determine the actual damage of the fibers. From the fiber data, determined by XCT analyses, representative volume elements (RVE) were created. The main damage mechanisms that were identified are fiber breakage, fiber pullout and lateral detachment. The actual degree of damage was integrated into the RVE via fiber data from XCT analyses. The calculation of stresses of single fibers show high values for long fibers in tensile direction. The matrix around the fibers shows very inhomogeneous stress distribution with higher values at the end of the fibres.
Translated title of the contributionModelling of damage mechanisms of short fibre reinforced polymers using X-ray CT
Original languageGerman
Title of host publicationTagung Werkstoffprüfung 2013
PublisherStahleisen GmbH
Pages217-222
ISBN (Print)978-3-514-00806-9
Publication statusPublished - 2013
EventWerkstoffprüfung 2013 - Neu-Ulm, Germany
Duration: 28 Nov 201329 Nov 2013
http://www.dgm.de/dgm/werkstoffpruefung

Conference

ConferenceWerkstoffprüfung 2013
CountryGermany
CityNeu-Ulm
Period28.11.201329.11.2013
Internet address

Keywords

  • Computer Tomografie
  • Faserverstärkte Kunststoffe
  • Faserorientierung
  • Simulation

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