Publication detail

The Role of Residual Stresses in Particulate Composite with Glass Matrix

MAJER, Z. NÁHLÍK, L. HUTAŘ, P.

Czech title

Stanovení vlivu residuálních napětí v částicových kompozitních materiálech

English title

The Role of Residual Stresses in Particulate Composite with Glass Matrix

Type

journal article in Scopus

Language

en

Original abstract

The particulate composites with glass matrix are widely used in many engineering applications. The mismatch of coefficients of thermal expansion during the fabrication process usually causes the presence of the residual stresses around particles. The influence and the understanding of the effects of residual stresses on the material response is required. The main aim of the present paper was to create a two-dimensional finite element model to analyze the influence of residual stresses on micro-crack behavior of glass and ceramics-based particulate composites. The maximum tangential stress criterion (MTS) was used to predict the direction of the micro-crack propagation. The modelled material was a kind of Low Temperature Co-fired Ceramics (LTCC) containing alumina particles embedded in a glass matrix. The influence of the micro-crack length and magnitude of loading on the micro-crack propagation path were investigated. The finite element software ANSYS was used. Conclusions of this paper can contribute to a better understanding of the propagation of micro-cracks in particulate composites in the field of residual stresses.

Czech abstract

V příspěvku byl modelován částicový kompozit v konečno-prvkovém programu Ansys. V důsledku rozdílných koeficientů teplotní roztažnosti matrice a částic zde při výrobě vznikají residuální napětí. Tyto byly analyzovány a byl stanoven jejich vliv na chování trhliny v blízkosti rozhraní částice-matrice.

English abstract

The particulate composites with glass matrix are widely used in many engineering applications. The mismatch of coefficients of thermal expansion during the fabrication process usually causes the presence of the residual stresses around particles. The influence and the understanding of the effects of residual stresses on the material response is required. The main aim of the present paper was to create a two-dimensional finite element model to analyze the influence of residual stresses on micro-crack behavior of glass and ceramics-based particulate composites. The maximum tangential stress criterion (MTS) was used to predict the direction of the micro-crack propagation. The modelled material was a kind of Low Temperature Co-fired Ceramics (LTCC) containing alumina particles embedded in a glass matrix. The influence of the micro-crack length and magnitude of loading on the micro-crack propagation path were investigated. The finite element software ANSYS was used. Conclusions of this paper can contribute to a better understanding of the propagation of micro-cracks in particulate composites in the field of residual stresses.

Keywords in Czech

keramický materiál, šíření trhliny, částicový kompozit, residuální napětí

Keywords in English

Ceramic, Crack Propagation, Crack Retardation, Particulate Composite, Residual Stresses

Released

04.01.2016

Publisher

Trans Tech Publications Ltd

Location

Switzerland

ISSN

1013-9826

Volume

665

Number

1

Pages from–to

173–176

Pages count

4

BIBTEX


@article{BUT117311,
  author="Zdeněk {Majer} and Luboš {Náhlík} and Pavel {Hutař},
  title="The Role of Residual Stresses in Particulate Composite with Glass Matrix",
  year="2016",
  volume="665",
  number="1",
  month="January",
  pages="173--176",
  publisher="Trans Tech Publications Ltd",
  address="Switzerland",
  issn="1013-9826"
}