Effect of micro-cracks in nonhomogeneous stress field on fracture instability in structural components

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27690%2F16%3A86100339" target="_blank" >RIV/61989100:27690/16:86100339 - isvavai.cz</a>
Result on the web
<a href="http://www.aimspress.com/article/10.3934/matersci.2016.4.1534/fulltext.html" target="_blank" >http://www.aimspress.com/article/10.3934/matersci.2016.4.1534/fulltext.html</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.3934/matersci.2016.4.1534" target="_blank" >10.3934/matersci.2016.4.1534</a>

Result language
angličtina
Original language name
Effect of micro-cracks in nonhomogeneous stress field on fracture instability in structural components
Original language description
The paper analyses the effects of statistical distribution in sizes of micro-cracks on scatter of fracture toughness of steels under brittle conditions. The results are utilized for reliability assessment of selected functional parts. The reliability considered as a complementary probability of brittle fracture initiation is discussed in dependence on the character of statistical distribution of micro-crack sizes, mechanical properties of steel, mechanisms of energy dissipation during cracks propagation, variation of loading, stress state of functional part and its service life. This probability approach is compared with deterministic reliability access originating from computation of safety factor. Its rational evaluation as a function of acceptable probability of fracture instability provides high economical effects saving materials and energy.
Czech name
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Czech description
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Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
JG - Metallurgy, metal materials
OECD FORD branch
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Publication year
2016
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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