Original title: Effect of Particles Size and Density on Fracture Toughness of Polypropylene Particulate Composite
Translated title: Efekt velikosti částic na lomové chování polypropylenového kompozitu
Authors: Nezbedová, E. ; Knésl, Zdeněk ; Hutař, Pavel ; Majer, Zdeněk ; Veselý, P.
Document type: Papers
Conference/Event: ECF17 - European Conference on Fracture /17./, Brno (CZ), 2008-09-02 / 2008-09-05
Year: 2008
Language: eng
Abstract: [eng] [cze]
The addition of mineral fillers to polypropylene (PP) can profoundly change the mechanical properties of polymer system. The properties of the particles themselves (size, shape, and material properties) can have significant effect on the global behaviour of composite, particularly on its toughness and stiffness. This contribution is focused on effects of particles size and their density on fracture toughness of polyprophylen particulate composite. The effect was studied from the experimental as well as from the theoretical point of view. The change of fracture toughness was estimated with utilisation of linear elastic fracture mechanics approach. The composite was modelled as a three-phase material with homogeneously distributed coated particles and numerically simulated using the finite element program ANSYS. Přidáním tuhých částic do polypropylenové matrice se změní mechanické vlastnosti celého polymerního systému. Nejen velikost, ale i rozmístění, popřípadě hustota částic, má pochopitelně vliv na celkové lomové chování kompozitu. V tomto příspěvku je právě studován vliv těchto parametrů.
Keywords: finite element model; fracture toughness; interphase; particulate composite
Project no.: CEZ:AV0Z20410507 (CEP), GA106/07/1284 (CEP)
Funding provider: GA ČR
Host item entry: Proceedings of 17th European Conference on Fracture, ISBN 978-80-214-3692-3

Institution: Institute of Physics of Materials AS ČR (web)
Document availability information: Fulltext is available at the institute of the Academy of Sciences.
Original record: http://hdl.handle.net/11104/0168014

Permalink: http://www.nusl.cz/ntk/nusl-39695


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Research > Institutes ASCR > Institute of Physics of Materials
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