Calculation of fracture parameters for the cracked bodies strengthened by circular patches.

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081723%3A_____%2F01%3A07013193" target="_blank" >RIV/68081723:_____/01:07013193 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Calculation of fracture parameters for the cracked bodies strengthened by circular patches.
Original language description
The present article yields a quantitative characterization of the influence of geometry and material properties on the values of fracture parameters. Both the cracked sheets with single and double circular patches are used for the analysis. The desired value of elastic T stress is obtained using the conservation M integral resulting from the Eshelby integral concept. For the SIF calculation, the indirect method of J integral is used and the general concept for the SIF separation in case of a mixed modeof loading is discussed here. The reduction effect is specified by the ratios of SIF and T stress. The method of stiffening the region surrounding the crack tip can be used as an alternative method of the lifetime prolongation, but cannot be used in allcases. Sometimes the usual method of the crack tip singularity cancellation is the only one to repair the structure.
Czech name
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Czech description
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Project
<a href="/en/project/GA106%2F99%2F1173" target="_blank" >GA106/99/1173: A two-parameter approach to the behaviour of fatigue cracks</a><br>
Continuities
Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year
2001
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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