Detail publikace
Estimation of Apparent Fracture Toughness of Alumina Based Ceramic Laminate
MÁŠA, B. NÁHLÍK, L. HUTAŘ, P.
Anglický název
Estimation of Apparent Fracture Toughness of Alumina Based Ceramic Laminate
Typ
Článek WoS
Jazyk
en
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.
Klíčová slova anglicky
apparent fracture toughness, ceramic laminate, residual stress, crack front shape
Vydáno
2014-01-06
ISSN
1013-9826
Časopis
Key Engineering Materials (print)
Ročník
2014
Číslo
592-593
Strany od–do
405–408
Počet stran
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"
}