Detail publikace
Odhad kritické konfigurace trhliny na rozhraní dvou materiálů.
ŠEVČÍK, M. HUTAŘ, P. KNÉSL, Z. NÁHLÍK, L. ZOUHAR, M.
Český název
Odhad kritické konfigurace trhliny na rozhraní dvou materiálů.
Anglický název
Estimation of the critical configuration of a crack arrested at the interface between two materials
Typ
článek v časopise - ostatní, Jost
Jazyk
en
Originální abstrakt
Surface crack propagation in a thin soft protective layer on a massive stiffer substrate is analysed using generalised linear elastic fracture mechanics. The growth of the initial crack is considered in both forward and sideways directions and the influence of the interface between the protective layer and massive substrate on the final crack configuration is investigated. It is shown that, depending on the elastic mismatch, the part of the crack front can be arrested at the interface protective layer/substrate and the rest of the crack grows continuously sideways only. The effective value of a stress intensity factor is used in order to predict the conditions under which the crack will propagate through the interface into the second material. Corresponding calculations have been made by finite elements
Český abstrakt
V práci je uvažována trhlina v nacházející se v tenké vrstvě dotýkající se rozhraní dvou materiálů. Za pomoci 3D výpočtů metodou konečných prvků je stanoven reálný tvar trhliny a efektivní součinitel intenzity napětí pro její další šíření.
Anglický abstrakt
Surface crack propagation in a thin soft protective layer on a massive stiffer substrate is analysed using generalised linear elastic fracture mechanics. The growth of the initial crack is considered in both forward and sideways directions and the influence of the interface between the protective layer and massive substrate on the final crack configuration is investigated. It is shown that, depending on the elastic mismatch, the part of the crack front can be arrested at the interface protective layer/substrate and the rest of the crack grows continuously sideways only. The effective value of a stress intensity factor is used in order to predict the conditions under which the crack will propagate through the interface into the second material. Corresponding calculations have been made by finite elements
Klíčová slova česky
bimateriál, lomová mechanika rozhraní materiálů, zobecněný součinitel intenzity napětí
Klíčová slova anglicky
Bimaterial, fracture mechanics of an interface, generalised stress intensity factor
Rok RIV
2012
Vydáno
27.05.2012
Nakladatel
Elsevier
Místo
Nizozemí
ISSN
0927-0256
Ročník
64
Číslo
5
Strany od–do
225–228
Počet stran
4
BIBTEX
@article{BUT93564,
author="Martin {Ševčík} and Pavel {Hutař} and Zdeněk {Knésl} and Luboš {Náhlík} and Michal {Zouhar},
title="Estimation of the critical configuration of a crack arrested at the interface between two materials",
year="2012",
volume="64",
number="5",
month="May",
pages="225--228",
publisher="Elsevier",
address="Nizozemí",
issn="0927-0256"
}