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Statements

Subject Item
n2:RIV%2F68407700%3A21110%2F13%3A00207785%21RIV14-MSM-21110___
rdf:type
n6:Vysledek skos:Concept
dcterms:description
Virtual testing of composite materials is, compared to a conventional experimental analysis, less time consuming, and it can very clearly reveal the failure mode. Therefore, it can be used for an optimization of the shape and amount of aggregates. Unlike the basic analytical homogenization methods, numerical modeling can predict the strength of the material and energy needed for the crack propagation. In our study three-point bending and splitting tests, by means of 2D plane-stress nonlinear finite element analysis utilizing isotropic damage model, were simulated. The results of the analysis indicate that angular aggregates of bigger size contribute to an increased fracture energy of the mortars, while the mortars containing fine round aggregates exhibit higher strength due to absence of stress concentrations around the grains. Virtual testing of composite materials is, compared to a conventional experimental analysis, less time consuming, and it can very clearly reveal the failure mode. Therefore, it can be used for an optimization of the shape and amount of aggregates. Unlike the basic analytical homogenization methods, numerical modeling can predict the strength of the material and energy needed for the crack propagation. In our study three-point bending and splitting tests, by means of 2D plane-stress nonlinear finite element analysis utilizing isotropic damage model, were simulated. The results of the analysis indicate that angular aggregates of bigger size contribute to an increased fracture energy of the mortars, while the mortars containing fine round aggregates exhibit higher strength due to absence of stress concentrations around the grains.
dcterms:title
2D FINITE ELEMENT ANALYSIS OF AGGREGATE INFLUENCE ON MECHANICAL PROPERTIES OF MORTAR SAMPLES 2D FINITE ELEMENT ANALYSIS OF AGGREGATE INFLUENCE ON MECHANICAL PROPERTIES OF MORTAR SAMPLES
skos:prefLabel
2D FINITE ELEMENT ANALYSIS OF AGGREGATE INFLUENCE ON MECHANICAL PROPERTIES OF MORTAR SAMPLES 2D FINITE ELEMENT ANALYSIS OF AGGREGATE INFLUENCE ON MECHANICAL PROPERTIES OF MORTAR SAMPLES
skos:notation
RIV/68407700:21110/13:00207785!RIV14-MSM-21110___
n6:predkladatel
n7:orjk%3A21110
n3:aktivita
n21:S
n3:aktivity
S
n3:dodaniDat
n11:2014
n3:domaciTvurceVysledku
n4:8441804 n4:5882028 n4:4695046
n3:druhVysledku
n18:D
n3:duvernostUdaju
n12:S
n3:entitaPredkladatele
n9:predkladatel
n3:idSjednocenehoVysledku
119687
n3:idVysledku
RIV/68407700:21110/13:00207785
n3:jazykVysledku
n17:eng
n3:klicovaSlova
FEM; damage model; mortar; influence of aggregates
n3:klicoveSlovo
n8:influence%20of%20aggregates n8:damage%20model n8:mortar n8:FEM
n3:kontrolniKodProRIV
[DC58FA25FEB7]
n3:mistoKonaniAkce
Svratka
n3:mistoVydani
Praha
n3:nazevZdroje
Engineering Mechanics 2013
n3:obor
n20:JI
n3:pocetDomacichTvurcuVysledku
3
n3:pocetTvurcuVysledku
3
n3:rokUplatneniVysledku
n11:2013
n3:tvurceVysledku
Nežerka, Václav Vorel, Jan Zeman, Jan
n3:typAkce
n14:EUR
n3:zahajeniAkce
2013-05-13+02:00
s:issn
1805-8256
s:numberOfPages
7
n15:hasPublisher
Ústav termomechaniky AV ČR
n13:isbn
978-80-87012-47-5
n19:organizacniJednotka
21110