Multi-parameter fracture mechanics: crack path in a mixed-mode specimen

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081723%3A_____%2F19%3A00510647" target="_blank" >RIV/68081723:_____/19:00510647 - isvavai.cz</a>
Alternative codes found
RIV/00216305:26110/19:PU132505
Result on the web
<a href="https://www.fracturae.com/index.php/fis/article/view/2491/2632" target="_blank" >https://www.fracturae.com/index.php/fis/article/view/2491/2632</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.3221/IGF-ESIS.49.07" target="_blank" >10.3221/IGF-ESIS.49.07</a>

Result language
angličtina
Original language name
Multi-parameter fracture mechanics: crack path in a mixed-mode specimen
Original language description
A mixed-mode geometry has been chosen to investigate a crack propagation using the multi-parameter fracture mechanics concept. The so-called Williams' series expansion is used for the crack-tip stress field approximation. It has been shown that application of the generalized fracture mechanics concept can be crucial for materials with specific fracture behaviour, such as elastic-plastic or quasi-brittle one, when fracture occurs not only in the very vicinity of the crack tip, but also in a more distant surrounding. Then, considering the higher-order terms of the Williams' expansion in fracture criteria (describing the crack stability and/or crack propagation direction) can bring more precise results. The coefficients of the Williams' expansion must be calculated numerically (for instance by means of the over-deterministic method in this work) for each cracked configuration, which is very time-consuming, and the analysis is very extensive even for a few basic cracked specimen configurations. On the other hand, a suitable choice of the geometrical configuration of the cracked disc enables performing experiments only on the specimens that could prove the theory about the importance of using the higher-order terms.
Czech name
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Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
—
OECD FORD branch
20101 - Civil engineering

Project
<a href="/en/project/GJ18-12289Y" target="_blank" >GJ18-12289Y: Advanced characterization of cracks propagation in composites based on alkali activated matrix</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2019
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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