About: Size Effect on Fracture Energy Induced by Non-locality

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An Entity of Type : http://linked.opendata.cz/ontology/domain/vavai/Vysledek, within Data Space : linked.opendata.cz associated with source document(s)

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
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. 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. (en) 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. (cs)
Title	Vliv velikosti vzorku na lomovou energii způsobený nelokalitou (cs) Size Effect on Fracture Energy Induced by Non-locality Size Effect on Fracture Energy Induced by Non-locality (en)
skos:prefLabel	Vliv velikosti vzorku na lomovou energii způsobený nelokalitou (cs) Size Effect on Fracture Energy Induced by Non-locality Size Effect on Fracture Energy Induced by Non-locality (en)
skos:notation	RIV/68407700:21110/04:01102087!RIV09-MSM-21110___
http://linked.open...avai/riv/aktivita	Z
http://linked.open...avai/riv/aktivity	Z(MSM 210000003)
http://linked.open...iv/cisloPeriodika	7-8
http://linked.open...vai/riv/dodaniDat	2009
http://linked.open...aciTvurceVysledku	Jirásek, Milan
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	České vysoké učení technické v Praze / Fakulta stavební
http://linked.open...dnocenehoVysledku	586423
http://linked.open...ai/riv/idVysledku	RIV/68407700:21110/04:01102087
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	compact tension test; fracture energy; non-local damage; parameter identification; quasibrittle materials; scaling (en)
http://linked.open.../riv/klicoveSlovo	compact tension test parameter identification scaling quasibrittle materials non-local damage fracture energy
http://linked.open...odStatuVydavatele	US - Spojené státy americké
http://linked.open...ontrolniKodProRIV	[E151FC6D982B]
http://linked.open...i/riv/nazevZdroje	International Journal for Numerical and Analytical Methods in Geomechanics
http://linked.open...in/vavai/riv/obor	JJ
http://linked.open...ichTvurcuVysledku	1 (xsd:int)
http://linked.open...cetTvurcuVysledku	3 (xsd:int)
http://linked.open...UplatneniVysledku	2004
http://linked.open...v/svazekPeriodika	28
http://linked.open...iv/tvurceVysledku	Jirásek, Milan Grassl, P. Rolshoven, S.
http://linked.open...ain/vavai/riv/wos	000222532300006
http://linked.open...n/vavai/riv/zamer	http://linked.opendata.cz/resource/domain/vavai/zamer/MSM%20210000003
issn	0363-9061
number of pages	18 (xsd:int)
http://localhost/t...ganizacniJednotka	21110

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