Simulation of fatigue crack growth by crack tip blunting
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081723%3A_____%2F06%3A00044942" target="_blank" >RIV/68081723:_____/06:00044942 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Alternative languages
Result language
angličtina
Original language name
Simulation of fatigue crack growth by crack tip blunting
Original language description
A study of fatigue crack growth due to blunting and re-sharpening of a crack tip is proposed in this article. The numerical modeling is based on elastic-plastic finite element analysis using the CASTEM code. On the model of the long cracks, in a semi-infinite plate, the possibility of reasonable prediction of fatigue crack growth due to crack tip blunting mechanism was studied. A parametric study of the influence of the yield stress of material on fatigue crack growth was made. The crack propagation rate was found to be proportional to the amplitude of the crack tip opening displacement in the usual range of the stress intensity factor (corresponding to small scale yielding conditions). Two different experimentally obtained sets of fatigue crack growthdata (316LN and P91 steel) were used for comparison with the numerical predictions.
Czech name
Simulace šíření únavových trhlin vlivem plasticity
Czech description
V práci jsou uvedeny možnosti numerické simulace šíření únavových trhlin pomocí plastického otupení na čele trhliny. Modelování bylo provedeno v konečnoprvkovém systému CASTEM. Výsledky byly porovnány s experimentálními výsledky získanými na ocelích užívaných v jaderné energetice 316LN a P91.
Classification
Type
D - Article in proceedings
CEP classification
JL - Fatigue and fracture mechanics
OECD FORD branch
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Result continuities
Project
<a href="/en/project/GP106%2F06%2FP239" target="_blank" >GP106/06/P239: The effect of free surface on fatigue crack growth</a><br>
Continuities
Z - Vyzkumny zamer (s odkazem do CEZ)
Others
Publication year
2006
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Article name in the collection
Fracture of Nano and Engineering Materials and Structures : proceedings
ISBN
1-4020-4971-4
ISSN
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e-ISSN
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Number of pages
8
Pages from-to
1-8
Publisher name
Springer
Place of publication
Dordrecht
Event location
Alexandroupolis
Event date
Jul 3, 2006
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
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