Publication detail

Dependence of Micro-Crack Propagation on Different Type of Non-Linear Matrix Used in Particulate Composite

MAJER, Z.

Czech title

Odhad vlivu nelineární matrice na šíření mikro-trhlin v polymerních částicových kompozitech

English title

Dependence of Micro-Crack Propagation on Different Type of Non-Linear Matrix Used in Particulate Composite

Type

journal article - other

Language

en

Original abstract

The role of rigid particles covered by interphase in fracture behavior of filled polymer was investigated with systems based on polypropylene (PP) matrix and rigid fillers. The connections of the influence of particle and interphase content on the micro-deformation mechanisms and fracture toughness of the composites were found. In this paper the composite was modeled as a three-phase continuum – the matrix, particles and interphase. The non-linear matrix properties were estimated from experiment and were used in numerical calculations. Computations were done for a variety of material properties of the matrix and the interphase using the finite element commercial code ANSYS. The results show that the presence of interphase between particle and matrix can improve fracture toughness of polymer particle composite through debonding process. This work contributes to better understanding of the connection between stiffness and fracture toughness.

Czech abstract

V tomto příspěvku byl studován vliv tuhých povrchově ošetřených částic na lomovou houževnatost kompozitního materiálů, konkrétně na směr šíření mikro-trhlin v polymerní matrici. Celý kompozit byl modelován jako tří-fázové kontinuum s elasto-plastickými vlastnostmi matrice. Celý příspěvek je koncipován jako parametrická studie, kdy jsou uvažovány různé materiálové vlastnosti matrice a mezivrstvy a vše je počítáno pro různé délky mikro-trhliny. Výpočty byly provedeny v konečno-prvkovém softwaru ANSYS.

English abstract

The role of rigid particles covered by interphase in fracture behavior of filled polymer was investigated with systems based on polypropylene (PP) matrix and rigid fillers. The connections of the influence of particle and interphase content on the micro-deformation mechanisms and fracture toughness of the composites were found. In this paper the composite was modeled as a three-phase continuum – the matrix, particles and interphase. The non-linear matrix properties were estimated from experiment and were used in numerical calculations. Computations were done for a variety of material properties of the matrix and the interphase using the finite element commercial code ANSYS. The results show that the presence of interphase between particle and matrix can improve fracture toughness of polymer particle composite through debonding process. This work contributes to better understanding of the connection between stiffness and fracture toughness.

Keywords in Czech

částicové kompozity, mezivrstva, lomová mechanika, nelineární vlastnosti

Keywords in English

particle composite, interphase, fracture mechanism, debonding, non-linear matrix properties

RIV year

2013

Released

01.02.2013

Publisher

American Scientific Publishers

Location

Valencia, California , USA

ISSN

1936-6612

Volume

19

Number

2

Pages from–to

626–629

Pages count

4

BIBTEX


@article{BUT95755,
  author="Zdeněk {Majer},
  title="Dependence of Micro-Crack Propagation on Different Type of Non-Linear Matrix Used in Particulate Composite",
  year="2013",
  volume="19",
  number="2",
  month="February",
  pages="626--629",
  publisher="American Scientific Publishers",
  address="Valencia, California , USA",
  issn="1936-6612"
}