Detail publikačního výsledku

Estimation of Apparent Fracture Toughness of Alumina Based Ceramic Laminate

MÁŠA, B.; NÁHLÍK, L.; HUTAŘ, P.

Originální název

Estimation of Apparent Fracture Toughness of Alumina Based Ceramic Laminate

Anglický název

Estimation of Apparent Fracture Toughness of Alumina Based Ceramic Laminate

Druh

Článek WoS

Originální abstrakt

The main aim of this contribution is the fracture behavior of layered ceramic composite with residual stresses. The influence of laminate composition on crack propagation (influence of material interfaces on crack shielding, effect of residual stresses, etc.) was investigated. The crack behavior was described by procedures based on linear elastic fracture mechanics (LEFM) and generalized LEFM. Computations were performed in 2D geometry under plain strain assumptions. For determination of the real crack front shape during the crack propagation the three dimensional FEM models were developed. Both (2D/3D) approaches were compared and differences were closely discussed. The influence of laminate composition with residual stresses on critical values for crack propagation through laminate interfaces was also determined. The results obtained can be used for a design of new layered composites with improved resistance against propagation of cracks.

Anglický abstrakt

The main aim of this contribution is the fracture behavior of layered ceramic composite with residual stresses. The influence of laminate composition on crack propagation (influence of material interfaces on crack shielding, effect of residual stresses, etc.) was investigated. The crack behavior was described by procedures based on linear elastic fracture mechanics (LEFM) and generalized LEFM. Computations were performed in 2D geometry under plain strain assumptions. For determination of the real crack front shape during the crack propagation the three dimensional FEM models were developed. Both (2D/3D) approaches were compared and differences were closely discussed. The influence of laminate composition with residual stresses on critical values for crack propagation through laminate interfaces was also determined. The results obtained can be used for a design of new layered composites with improved resistance against propagation of cracks.

Klíčová slova

apparent fracture toughness, ceramic laminate, residual stress, crack front shape

Klíčová slova v angličtině

apparent fracture toughness, ceramic laminate, residual stress, crack front shape

Autoři

MÁŠA, B.; NÁHLÍK, L.; HUTAŘ, P.

Rok RIV

2017

Vydáno

06.01.2014

ISSN

1013-9826

Periodikum

Key Engineering Materials (print)

Svazek

2014

Číslo

592-593

Stát

Švýcarská konfederace

Strany od

405

Strany do

408

Strany počet

4

BibTex

@article{BUT100931,
  author="Bohuslav {Máša} and Luboš {Náhlík} and Pavel {Hutař}",
  title="Estimation of Apparent Fracture Toughness of Alumina Based Ceramic Laminate",
  journal="Key Engineering Materials (print)",
  year="2014",
  volume="2014",
  number="592-593",
  pages="405--408",
  doi="10.4028/www.scientific.net/KEM.592-593.405",
  issn="1013-9826"
}