Large plastic zones and extensive influence of notch under near-threshold mode II and mode III loading of fatigue cracks
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081723%3A_____%2F18%3A00498980" target="_blank" >RIV/68081723:_____/18:00498980 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1016/j.prostr.2018.12.235" target="_blank" >http://dx.doi.org/10.1016/j.prostr.2018.12.235</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.prostr.2018.12.235" target="_blank" >10.1016/j.prostr.2018.12.235</a>
Alternative languages
Result language
angličtina
Original language name
Large plastic zones and extensive influence of notch under near-threshold mode II and mode III loading of fatigue cracks
Original language description
Plastic zone shapes and sizes were determined for a cylindrical specimen for mode II and mode III crack testing made of ARMCO iron. Three methods of calculation were applied: Irwins approximate solution, HRR field and finite element method. The plastic zones were found to be very large under mode II and mode III loading even at the loading level corresponding to fatigue crack growth threshold. The difference between sizes of plastic zones under tensile-mode and shear-mode loading was explained by different stress gradients and corresponding stress concentration factors of notches under shear and tensile type loading. This is also the reason for a much further influence of notch on stress intensity factors for mode II and mode III cracks emanating from the notch than the influence under mode I loading. Preliminary results for reversed plastic zone size indicated that it is smaller than the theoretical size of 1/4 of the monotonic zone which explained the presence of large monotonic zone at threshold loading.
Czech name
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Czech description
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Classification
Type
D - Article in proceedings
CEP classification
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OECD FORD branch
20301 - Mechanical engineering
Result continuities
Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2018
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Article name in the collection
ECF22 - Loading and Environmental effects on Structural Integrity
ISBN
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ISSN
2452-3216
e-ISSN
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Number of pages
6
Pages from-to
1123-1128
Publisher name
Elsevier
Place of publication
Amsterdam
Event location
Belgrade
Event date
Aug 26, 2018
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
000459860900185