Subsized Specimens for Fracture Resistance Characterization Including Transferability Issues

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081723%3A_____%2F16%3A00468064" target="_blank" >RIV/68081723:_____/16:00468064 - 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
Subsized Specimens for Fracture Resistance Characterization Including Transferability Issues
Original language description
The fracture mechnics parameters characterise the stress singularity in front of the crack tip. At the existence of a small plastic zone at the crack tip (Small Scale Yielding (SSY)) conditions the fracture mechnics parameter characterises the crak tip conditions. The single parameter (e.g. K, J or CTOD) can be applied as a geometry-independent fracture criterion. Any surpassing of the SSY conditions causing decrease of the level of the stressses in the vicinity of the crack tip. The single-parameter fracture mechanics then breaks down and fracture toughness depends on the size and geometry of the test specimen. Small Specimen Test Technique has been solved for two miniature specimen types. The test results are discusssed from the point of view of validity of fracture toughness characteristics. The quantification of the constraint at the crack tip using FEA, T-stress and Q-parameter is performed. Correcrion of fracture toughness values corresponding to the SSY conditions is given.
Czech name
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Czech description
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Project
<a href="/en/project/GJ15-21292Y" target="_blank" >GJ15-21292Y: Fracture behaviour of fine oxide dispersion strengthened Fe based alloys at high temperatures</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2016
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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