Publication detail

Influence of Interphase Imperfection on Micro-Crack Behavior in Polymer Composites Filled by Rigid Particles

MAJER, Z. NÁHLÍK, L.

Czech title

Vliv nedokonalosti mezivrstvy na lomové chování kompozitních materiálů

English title

Influence of Interphase Imperfection on Micro-Crack Behavior in Polymer Composites Filled by Rigid Particles

Type

conference paper

Language

en

Original abstract

In this paper a particulate composites with polypropylene matrix and rigid mineral fillers are studied. The polymer particulate composites are frequently used in many engineering applications. Due to the physical and chemical interaction between matrix and particles a third phase (generally called interphase) is formed. The composite is modeled as a three-phase continuum. The properties of particles and interphase have a significant effect on the global behavior of the composite. On the basis of fracture mechanics methodology the interaction of micro-crack propagation in the matrix filled by rigid particles covered by the very soft interphase is analyzed. The effect of the composite structure on their mechanical properties is studied here from the theoretical point of view. The properties of particles and matrix were determined experimentally. Conclusions of this paper can contribute to a better understanding of the behavior of micro-crack in polymer particulate composites with respect to interphase.

Czech abstract

V této práci jsou studovány částicové kompozity tvořené polypropylenovou matricí plněnou minerálními částicemi. Díky chemickým interakcím matrice s částicemi vzniká třetí fáze, která je obecně nazývaná mezivrstva. Kompozit je modelován jako třífázové kontinuum. Vlastnosti částic a mezivrstvy mají významný vliv na celkové chování kompozitu. Na základě principů lineárně-elastické lomové mechaniky je analyzována interakce šířících se mikro-trhlin v matrici s minerálními částicemi při uvažování mezivrstvy. Vlastnosti částic a matrice byly stanoveny experimentálně.

English abstract

In this paper a particulate composites with polypropylene matrix and rigid mineral fillers are studied. The polymer particulate composites are frequently used in many engineering applications. Due to the physical and chemical interaction between matrix and particles a third phase (generally called interphase) is formed. The composite is modeled as a three-phase continuum. The properties of particles and interphase have a significant effect on the global behavior of the composite. On the basis of fracture mechanics methodology the interaction of micro-crack propagation in the matrix filled by rigid particles covered by the very soft interphase is analyzed. The effect of the composite structure on their mechanical properties is studied here from the theoretical point of view. The properties of particles and matrix were determined experimentally. Conclusions of this paper can contribute to a better understanding of the behavior of micro-crack in polymer particulate composites with respect to interphase.

Keywords in Czech

částicový kompozit, mezivrstva, lomová mechanika, mikro-trhlina, MKP, nelineární matrice

Keywords in English

particulate composites, fracture mechanics, polymer matrix, FEM, shielding effect, interphase, non-linear behavior

RIV year

2014

Released

03.02.2014

Publisher

Trans Tech Publications

Location

Switzerland

ISBN

978-3-03785-876-9

ISSN

1013-9826

Book

Local Mechanical Properties IX

Volume

586

Number

1

Pages from–to

194–197

Pages count

4

BIBTEX


@inproceedings{BUT101736,
  author="Zdeněk {Majer} and Luboš {Náhlík},
  title="Influence of Interphase Imperfection on Micro-Crack Behavior in Polymer Composites Filled by Rigid Particles",
  booktitle="Local Mechanical Properties IX",
  year="2014",
  volume="586",
  number="1",
  month="February",
  pages="194--197",
  publisher="Trans Tech Publications",
  address="Switzerland",
  isbn="978-3-03785-876-9",
  issn="1013-9826"
}