Publication detail
The Influence of Loading Ratio on Fatigue Crack Propagation Through a Bi-material Interface
NÁHLÍK, L. HUTAŘ, P. KNÉSL, Z.
Czech title
Vliv parametru asymetrie cyklu na šíření trhliny přes bi-materiálové rozhraní
English title
The Influence of Loading Ratio on Fatigue Crack Propagation Through a Bi-material Interface
Type
journal article - other
Language
en
Original abstract
The paper is devoted to fatigue crack propagation in layered materials. The influence of plasticity induced crack closure on threshold values for fatigue crack propagation through interfaces between different materials layers is studied. The main aim was to estimate the influence of the loading ratio R on threshold values for crack propagation through a bi-material interface as a function of the elastic mismatch of both materials. The finite element method (FEM) is used for numerical calculations. Results obtained for different loading ratios, materials, boundary conditions and magnitude of applied loading can be generalized and used for the design of composite bodies with different material layers.
Czech abstract
Práce se zabývá šířením únavových trhlin ve vrstevnatých materiálech. Je studován vliv plasticky indukovaného zavírání trhliny na prahové hodnoty pro šíření trhliny přes rozhraní dvou materiálů. Hlavním cílem je odhadnout vliv velikosti parametru asymetrie cyklu R na prahové hodnoty pro šíření trhliny přes rozhraní dvou materiálů.
English abstract
The paper is devoted to fatigue crack propagation in layered materials. The influence of plasticity induced crack closure on threshold values for fatigue crack propagation through interfaces between different materials layers is studied. The main aim was to estimate the influence of the loading ratio R on threshold values for crack propagation through a bi-material interface as a function of the elastic mismatch of both materials. The finite element method (FEM) is used for numerical calculations. Results obtained for different loading ratios, materials, boundary conditions and magnitude of applied loading can be generalized and used for the design of composite bodies with different material layers.
Keywords in Czech
bi-materiálové rozhraní, parametr asymetrie cyklu, plasticity-induced crack closure, kritické napětí
Keywords in English
bi-material interface, loading ratio, plasticity-induced crack closure, critical stress
RIV year
2007
Released
15.09.2007
Publisher
Trans Tech Publications
Location
Švýcarsko
ISSN
1013-9826
Journal
Key Engineering Materials
Volume
348-349
Number
348-349
Pages from–to
317–320
Pages count
4
BIBTEX
@article{BUT45340,
author="Luboš {Náhlík} and Pavel {Hutař} and Zdeněk {Knésl},
title="The Influence of Loading Ratio on Fatigue Crack Propagation Through a Bi-material Interface",
journal="Key Engineering Materials",
year="2007",
volume="348-349",
number="348-349 ",
month="September",
pages="317--320",
publisher="Trans Tech Publications",
address="Švýcarsko",
issn="1013-9826"
}