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"
}