The Mixed-Mode Fracture Resistance of C 50/60 and its Suitability for Use in Precast Elements as Determined by the Brazilian Disc Test and Three-Point Bending Specimens

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26110%2F18%3APU128609" target="_blank" >RIV/00216305:26110/18:PU128609 - isvavai.cz</a>
Alternative codes found
RIV/68081723:_____/18:00495681 RIV/61989100:27120/18:10240808
Result on the web
<a href="https://www.sciencedirect.com/science/article/pii/S0167844218301356?via%3Dihub#" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0167844218301356?via%3Dihub#</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.tafmec.2018.08.003" target="_blank" >10.1016/j.tafmec.2018.08.003</a>

Result language
angličtina
Original language name
The Mixed-Mode Fracture Resistance of C 50/60 and its Suitability for Use in Precast Elements as Determined by the Brazilian Disc Test and Three-Point Bending Specimens
Original language description
The mixed mode fracture behaviour of C 50/60 concrete was studied both experimentally and theoretically using two different test configurations (three-point bending and Brazilian disc tests with various crack lengths). Different fracture behaviour in mode I was observed for the tested specimens. The level of crack tip constraint in the test-specimens (which relates to the stress intensity factors (SIF or K) and the T-stress) was used as the main parameter for predicting the mixed mode fracture results based on a two parameter (K-T) linear elastic fracture theory. To predict the crack initiation angles and fracture resistances, the generalized maximum tangential stress (GMTS) criterion was employed. The GMTS simultaneously involves the effects of the mixed mode SIFs, the T-stress and a critical distance rC. For each test configuration, a fracture initiation direction, a fracture toughness and mixed mode fracture resistance curves were obtained throughout the entire range of the mixed mode I/II loading conditions. It was observed that for all specimens the loss of the crack tip constraint increases the mixed mode fracture resistance and decreases the fracture initiation direction and vice versa.
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
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OECD FORD branch
20101 - Civil engineering

Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2018
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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