2D FINITE ELEMENT ANALYSIS OF AGGREGATE INFLUENCE ON MECHANICAL PROPERTIES OF MORTAR SAMPLES

Kód výsledku v IS VaVaI

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Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

2D FINITE ELEMENT ANALYSIS OF AGGREGATE INFLUENCE ON MECHANICAL PROPERTIES OF MORTAR SAMPLES

Popis výsledku v původním jazyce

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. Unlikethe 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.

Název v anglickém jazyce

2D FINITE ELEMENT ANALYSIS OF AGGREGATE INFLUENCE ON MECHANICAL PROPERTIES OF MORTAR SAMPLES

Popis výsledku anglicky

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. Unlikethe 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.

Druh

D - Stať ve sborníku

CEP obor

JI - Kompositní materiály

OECD FORD obor

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Projekt

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Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2013

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

Engineering Mechanics 2013

ISBN

978-80-87012-47-5

ISSN

1805-8256

e-ISSN

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Počet stran výsledku

7

Strana od-do

405-411

Název nakladatele

Ústav termomechaniky AV ČR

Místo vydání

Praha

Místo konání akce

Svratka

Datum konání akce

13. 5. 2013

Typ akce podle státní příslušnosti

EUR - Evropská akce

Kód UT WoS článku

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