Publication detail
INFLUENCE OF BI-MATERIAL INTERFACE AND PLASTICITY INDUCED CRACK CLOSURE ON THRESHOLD VALUES
NÁHLÍK, L. HUTAŘ, P.
Czech title
Vliv plasticky indukovaného zavírání trhliny a bi-materiálového rozhraní na prahové hodnoty
English title
INFLUENCE OF BI-MATERIAL INTERFACE AND PLASTICITY INDUCED CRACK CLOSURE ON THRESHOLD VALUES
Type
conference paper
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
plasticky indukované zavírání trhliny, prahové hodnoty, bi-materiálové rozhraní
Keywords in English
plasticity induced crack closure, bi-material interface, threshold value
RIV year
2007
Released
14.05.2007
Publisher
ÚT AV ČR
Location
Praha
ISBN
978-80-87012-06-2
Book
Engineering mechanics 2007
Pages from–to
1–8
Pages count
8
BIBTEX
@inproceedings{BUT27910,
author="Luboš {Náhlík} and Pavel {Hutař},
title="INFLUENCE OF BI-MATERIAL INTERFACE AND PLASTICITY INDUCED CRACK CLOSURE ON THRESHOLD VALUES",
booktitle="Engineering mechanics 2007",
year="2007",
month="May",
pages="1--8",
publisher="ÚT AV ČR",
address="Praha",
isbn="978-80-87012-06-2"
}