The influence of discontinuity of fracture-mechanics parameters on the failure manner of multi-material structures

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081723%3A_____%2F11%3A00370064" target="_blank" >RIV/68081723:_____/11:00370064 - 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
The influence of discontinuity of fracture-mechanics parameters on the failure manner of multi-material structures
Original language description
Within failure assessment of singular stress concentrators, the crack initiation and propagation direction is often gained from the criterion of the maximum tangential stress. But there are cases where the crack is initiated in a different direction thanthe direction corresponding to the global maximum of tangential stress. A case of this kind can occur during constrained crack initiation caused by discontinuity of fracture-mechanics parameters, namely the fracture toughness KIC or the threshold valueKIth. An example can be the crack initiation in a multi-material wedge, where the extreme value of tangential stress occurs in one of the materials, but the crack initiates in another material part. The maximum value of tangential stress is often oriented to the material with the highest elastic module. But due to different fracture-mechanics properties (KIC or KIth) of particular materials, the crack can initiate into a material with worse fracture-mechanics properties or into the bi-ma
Czech name
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Czech description
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Project
<a href="/en/project/GAP108%2F10%2F2049" target="_blank" >GAP108/10/2049: Crack initiation and propagation from interface-related singular stress concentrators</a><br>
Continuities
Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year
2011
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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