Detail publikace

Effect of thermal expansion mismatches of matrix and fibres on microcracking of brittle matrix composites

PROFANT, T. KOTOUL, M.

Originální název

Effect of thermal expansion mismatches of matrix and fibres on microcracking of brittle matrix composites

Typ

článek ve sborníku ve WoS nebo Scopus

Jazyk

angličtina

Originální abstrakt

There is investigated a crack problem for an array of collinear microcracks in composite matrix. Inclusions are situated in between the neighbouring microcracks tips and exhibit different elastic properties than matrix. The problem is solved using the technique of distributed dislocations. Stress intensity factor is calculated for various cracks/inclusions geometries and elastic moduli mismatches. The process by which a fibre-reinforced cross-ply ceramic composite is damaged and eventually fails under tension is very complex. After an initial elastic response, the damage starts with matrix cracking in 90 plies. These microcracks spread as 3D tunnelling cracks from small flaws located in the matrix of the 90 plies. Driving force for steady-state tunnelling, Gss, can be calculated using plane-strain elasticity solutions for the energy release rate G at the edge of plane-strain crack.

Klíčová slova

particle composites; continuously distributed dislocations; cracks-inclusions interactions, thermal expansion; crack tunnelling

Autoři

PROFANT, T.; KOTOUL, M.

Rok RIV

2005

Vydáno

29. 3. 2005

Nakladatel

ÚMTMB FSI v Brně

Místo

Brno

ISBN

80-214-2373-0

Kniha

Aplikovaná mechanika 2005

Strany od

85

Strany do

86

Strany počet

2

BibTex

@inproceedings{BUT20703,
  author="Tomáš {Profant} and Michal {Kotoul}",
  title="Effect of thermal expansion mismatches of matrix and fibres on microcracking of brittle matrix composites",
  booktitle="Aplikovaná mechanika 2005",
  year="2005",
  pages="85--86",
  publisher="ÚMTMB FSI v Brně",
  address="Brno",
  isbn="80-214-2373-0"
}