Estimation of anisotropic elastic properties of carbon fibers using nanoindentation

Thimmappa Shetty Guruprasad, Vincent Keryvin, Alain Bourmaud

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

1 Citation (Scopus)

Abstract

Understanding the mechanical behavior of carbon fiber reinforced polymers requires knowledge on the deformation behavior of carbon fibers, they are highly anisotropic and heterogeneous. Nanoindentation is an efficient method for determining the mechanical properties in small volumes of materials. For isotropic materials, a single nanoindentation test can evaluate an elastic properties of the material. But for anisotropic material, the difficulty increases since measured indentation modulus depends on five elastic parameters (El,Et,Glt, νlt,and νtt) of the material. Nanoindentation experiments are performed on carbon fibers orientated between 0 to 90 at ten different orientations to the fiber axis. From theoretical models given by Vlassak et al. and Delafargue and Ulm, the elastic constants are predicted numerically by comparing the results of indentation modulus versus orientation angle with the experiments.

Original languageEnglish
Title of host publicationProceedings of the 14th International Conference on Local Mechanical Properties, LMP 2019
EditorsJiri Nemecek, Petr Hausild, Radim Ctvrtlik
PublisherCzech Technical University
Pages107-111
Number of pages5
ISBN (Electronic)9788001067352
DOIs
Publication statusPublished - 11-06-2020
Event14th International Conference on Local Mechanical Properties, LMP 2019 - Prague, Czech Republic
Duration: 06-11-201908-11-2019

Publication series

NameActa Polytechnica CTU Proceedings
Volume27
ISSN (Electronic)2336-5382

Conference

Conference14th International Conference on Local Mechanical Properties, LMP 2019
Country/TerritoryCzech Republic
CityPrague
Period06-11-1908-11-19

All Science Journal Classification (ASJC) codes

  • Engineering(all)
  • Physics and Astronomy(all)
  • Applied Mathematics

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