Publication detail

Micro-Crack Propagation in Particulate Composite with Different Types of Matrix

MAJER, Z. NÁHLÍK, L.

Czech title

Studium vlivu různých typů matrice na šíření mikro-trhlin v částicovém kompozitu

English title

Micro-Crack Propagation in Particulate Composite with Different Types of Matrix

Type

journal article - other

Language

en

Original abstract

Particulate composites with polymer matrix and solid fillers are one of important types of materials. Generally, these materials are usually used as construction materials, high-performance engineering materials or protective organic coatings. The main aim of a present paper is an estimation of the micro-crack behavior in the particulate composite with non-linear polymer matrix. The polymer matrix filled by magnesia-based mineral filler is investigated by means of the finite element method. A non-linear material behavior of the matrix was obtained from experiment as well as properties of mineral filler. Numerical model on the base of representative plane element (RPE) was developed. The results show that the presence of interphase between particle and matrix can improve fracture toughness of polymer particle composite through debonding process. The conclusions of this paper can contribute to a better understanding of the behavior of micro-crack in particulate composites with respect to interphase.

Czech abstract

Částicové kompozitní materiály s polymerní matricí jsou v současné době jedním z velice často používaných konstrukčních materiálů. Cílem předložené práce je odhad chování mikro-trhliny šířící se matricí, které je navíc uvažována s nelineárními vlastnostmi. Ty byly získány pomocí experimentu a použity při výpočtu v konečno-prvkovém modelu. Byl vytvořen a popsán numerický model, na kterém bylo studováno chování mikro-trhliny. Výsledky naznačují, že přítomnost další fáze, obecně známé jako mezivrstva, může významně ovlivnit chování kompozitu jako celku. Závěry práce mohou přispět k lepšímu pochopení polymerních kompozitních materiálů s tuhými částicemi.

English abstract

Particulate composites with polymer matrix and solid fillers are one of important types of materials. Generally, these materials are usually used as construction materials, high-performance engineering materials or protective organic coatings. The main aim of a present paper is an estimation of the micro-crack behavior in the particulate composite with non-linear polymer matrix. The polymer matrix filled by magnesia-based mineral filler is investigated by means of the finite element method. A non-linear material behavior of the matrix was obtained from experiment as well as properties of mineral filler. Numerical model on the base of representative plane element (RPE) was developed. The results show that the presence of interphase between particle and matrix can improve fracture toughness of polymer particle composite through debonding process. The conclusions of this paper can contribute to a better understanding of the behavior of micro-crack in particulate composites with respect to interphase.

Keywords in Czech

částicový kompozit, mezivrstva, lomová mechanika, mikro-trhlina, stínící efekt, nelineární matrice

Keywords in English

particulate composite, interphase, fracture mechanics, shielding effect, micro-crack, polymer non-linear matrix

RIV year

2012

Released

25.10.2012

Publisher

Trans Tech Publications

Location

Switzerland

ISSN

1660-9336

Volume

245

Number

1

Pages from–to

138–143

Pages count

6

BIBTEX


@article{BUT94609,
  author="Zdeněk {Majer} and Luboš {Náhlík},
  title="Micro-Crack Propagation in Particulate Composite with Different Types of Matrix",
  year="2012",
  volume="245",
  number="1",
  month="October",
  pages="138--143",
  publisher="Trans Tech Publications",
  address="Switzerland",
  issn="1660-9336"
}