Detail publikace
Understanding the tensile strength of ceramics in the presence of small critical flaws
MARTIN, É. LEGUILLON, D. ŠEVEČEK, O. BERMEJO, R.
Anglický název
Understanding the tensile strength of ceramics in the presence of small critical flaws
Typ
článek v časopise ve Web of Science, Jimp
Jazyk
en
Originální abstrakt
The effect of small critical flaws on the strength of polycrystalline ceramic materials is analyzed with the help of an initiation criterion combining both a stress and an energy conditions. If the size of the defect is smaller than the characteristic material length, numerical predictions reveal that the defect (either sharp or blunt) has no effect on the strength. This result is in a good agreement with experimental results obtained from the strength measurements of ceramic materials with controlled flaws. Combining two fracture tests after introducing flaws with controlled sizes enables to identify the fracture parameters of the ceramic material.
Anglický abstrakt
The effect of small critical flaws on the strength of polycrystalline ceramic materials is analyzed with the help of an initiation criterion combining both a stress and an energy conditions. If the size of the defect is smaller than the characteristic material length, numerical predictions reveal that the defect (either sharp or blunt) has no effect on the strength. This result is in a good agreement with experimental results obtained from the strength measurements of ceramic materials with controlled flaws. Combining two fracture tests after introducing flaws with controlled sizes enables to identify the fracture parameters of the ceramic material.
Klíčová slova anglicky
Crack nucleation; Coupled criterion; Finite fracture mechanics; Tensile strength; Ceramics
Vydáno
19.09.2018
Nakladatel
Elsevier
Místo
Netherlands
ISSN
0013-7944
Ročník
201
Číslo
1
Strany od–do
167–175
Počet stran
9
BIBTEX
@article{BUT149056,
author="Éric {Martin} and Dominique {Leguillon} and Oldřich {Ševeček} and Raul {Bermejo},
title="Understanding the tensile strength of ceramics in the presence of small critical flaws",
year="2018",
volume="201",
number="1",
month="September",
pages="167--175",
publisher="Elsevier",
address="Netherlands",
issn="0013-7944"
}