Size effects in concrete specimens under uniaxial tension: Computational modeling

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26110%2F10%3APU90462" target="_blank" >RIV/00216305:26110/10:PU90462 - 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
Size effects in concrete specimens under uniaxial tension: Computational modeling
Original language description
This paper presents a study of numerical modeling of sources of size effects in concrete structures. The major motivation is to identify and study interplay of several scaling length stemming from the material, boundary conditions and geometry. We compare our results with the well published results of direct tensile tests of dog-bone specimen with rotating boundary conditions. The specimens are modeled using microplane material and fracture-plastic material law to show that a portion of the dependence of nominal strength on structural size can be explained deterministically. We model individual sources of size effect. Namely, we model local material strength using an autocorrelated random field to identify a statistical part of size effect. Another size effect sources could be explained either by the presence of a weak surface layer of constant thickness (caused e.g. by drying, surface damage, or other irregularities) and three dimensional out-of-plane specimen flexure. The latter effe
Czech name
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Czech description
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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
2010
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection
8th fib International PhD Symposium in Civil Engineering
ISBN
978-87-7877-301-2
ISSN
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e-ISSN
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Number of pages
5
Pages from-to
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Publisher name
DTU Byg
Place of publication
Kodaň, Dánsko
Event location
Kodaň
Event date
Jun 20, 2010
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
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