Fracture process zone extent and energy dissipation in silicate composites with different cohesive behaviour

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

Fracture process zone extent and energy dissipation in silicate composites with different cohesive behaviour

Popis výsledku v původním jazyce

This paper deals with estimation of the size and shape of the zone of material failure evolving around the crack tip during fracture of silicate-based composites. A technique developed for the task by the authors is briefly sketched and then verified vianumerical simulations utilizing several modelling approaches. The study is performed on numerically simulated responces of three-point bending tests on notched beams of two considerably different sizes made of silicate-based materials with three different compositions resulting in significantly dissimilar cohesive behaviour (from quasi-brittle to quasi-ductile/strain hardening). Numerical simulations by means of physical discretization of continuum (a spring network/lattice-particle type model), fictitious crack model (specialized FEM code), and crack band model (commercial FEM software) are compared with results of the developing technique for estimation of the extent of the fracture process zone (FPZ). The conducted analysis provides

Název v anglickém jazyce

Fracture process zone extent and energy dissipation in silicate composites with different cohesive behaviour

Popis výsledku anglicky

This paper deals with estimation of the size and shape of the zone of material failure evolving around the crack tip during fracture of silicate-based composites. A technique developed for the task by the authors is briefly sketched and then verified vianumerical simulations utilizing several modelling approaches. The study is performed on numerically simulated responces of three-point bending tests on notched beams of two considerably different sizes made of silicate-based materials with three different compositions resulting in significantly dissimilar cohesive behaviour (from quasi-brittle to quasi-ductile/strain hardening). Numerical simulations by means of physical discretization of continuum (a spring network/lattice-particle type model), fictitious crack model (specialized FEM code), and crack band model (commercial FEM software) are compared with results of the developing technique for estimation of the extent of the fracture process zone (FPZ). The conducted analysis provides

Druh

D - Stať ve sborníku

CEP obor

JM - Inženýrské stavitelství

OECD FORD obor

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Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2011

Kód důvěrnosti údajů

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

Název statě ve sborníku

Proceedings of the 2nd International RILEM Conference Strain Hardening Cementitious Composites

ISBN

978-2-35158-120-9

ISSN

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e-ISSN

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Počet stran výsledku

9

Strana od-do

259-267

Název nakladatele

Neuveden

Místo vydání

Rio de Janeiro

Místo konání akce

Rio de Janeiro

Datum konání akce

12. 12. 2011

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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