Size Effect on Fracture Energy Induced by Non-locality
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F04%3A01102087" target="_blank" >RIV/68407700:21110/04:01102087 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Alternative languages
Result language
angličtina
Original language name
Size Effect on Fracture Energy Induced by Non-locality
Original language description
Experimental results available in the literature indicate that the nominal fracture energy of concrete (defined as total work of fracture divided by the ligament area) depends on the size of the specimen. Theoretical modeling of the size effect on nominal fracture energy based on a nonlocal constitutive model is attempted in this paper. The influence of various details of the integral-type nonlocal formulation, e.g., of the specific form of nonlocal averaging in the vicinity of a physical boundary, is studied and a physical explanation is provided. The numerical results are compared to experimental data for notched compact tension specimens, and conclusions are drawn for individual formulations. It is shown that the best agreement with experimentally observed trends is achieved if the notch is modeled as a layer of completely damaged material. Fitting of the size effects on both strength and fracture energy permits a unique identification of the model parameters.
Czech name
Vliv velikosti vzorku na lomovou energii způsobený nelokalitou
Czech description
Experimentální výsledky v dostupné literatuře ukazují, že nominální lomová energie betonu (definovaná jako celková práce spotřebovaná na lom dělená plochou ligamentu) závisí na velikosti vzorku. Tento článek je pokusem o teoretické modelování vlivu velikosti vzorku na nominální lomovou energii založené na nelokálním konstitutivním modelu.
Classification
Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
JJ - Other materials
OECD FORD branch
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Result continuities
Project
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Continuities
Z - Vyzkumny zamer (s odkazem do CEZ)
Others
Publication year
2004
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
International Journal for Numerical and Analytical Methods in Geomechanics
ISSN
0363-9061
e-ISSN
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Volume of the periodical
28
Issue of the periodical within the volume
7-8
Country of publishing house
US - UNITED STATES
Number of pages
18
Pages from-to
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UT code for WoS article
000222532300006
EID of the result in the Scopus database
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