Publication detail

Effect of Particles Size and Density on Fracture Toughness of Polypropylene Particulate Composite

NEZBEDOVÁ, E. KNÉSL, Z. HUTAŘ, P. MAJER, Z. VESELÝ, P.

Czech title

Efekt velikosti částice na lomové chování polypropylenového částicového kompozitu

English title

Effect of Particles Size and Density on Fracture Toughness of Polypropylene Particulate Composite

Type

conference paper

Language

en

Original abstract

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. The adhesion between the particles and the matrix essentially contributes to the ability of the matrix to transfer macro-load and plays a deciding role in evaluation of the driving force of micro-cracks. 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 particle-reinforced composite was modelled as a three-phase material with homogeneously distributed coated particles and numerically simulated using the finite element program ANSYS.

Czech abstract

V práci je studován především vliv velikosti plniva přidávaného do matrice na celkové lomové chování kompozitu.

English abstract

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. The adhesion between the particles and the matrix essentially contributes to the ability of the matrix to transfer macro-load and plays a deciding role in evaluation of the driving force of micro-cracks. 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 particle-reinforced composite was modelled as a three-phase material with homogeneously distributed coated particles and numerically simulated using the finite element program ANSYS.

Keywords in Czech

částicový kompozit, lomová houževnatost, mezivrstva

Keywords in English

particulate composite, fracture toughness, interphase, finite element model

RIV year

2008

Released

02.09.2008

Location

Brno

ISBN

9781617823190

Book

European Conference on Fracture, ECF17

Pages from–to

1576–1583

Pages count

8

BIBTEX


@inproceedings{BUT31961,
  author="Eva {Nezbedová} and Zdeněk {Knésl} and Pavel {Hutař} and Zdeněk {Majer} and Petr {Veselý},
  title="Effect of Particles Size and Density on Fracture Toughness of Polypropylene Particulate Composite",
  booktitle="European Conference on Fracture, ECF17",
  year="2008",
  month="September",
  pages="1576--1583",
  address="Brno",
  isbn="9781617823190"
}