FEM modelling of fibre-concrete in development of blast resistant elements

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F26232511%3A_____%2F18%3AN0000079" target="_blank" >RIV/26232511:_____/18:N0000079 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/15548180:_____/18:N0000008

Výsledek na webu

<a href="http://dx.doi.org/10.1063/1.5044114" target="_blank" >http://dx.doi.org/10.1063/1.5044114</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1063/1.5044114" target="_blank" >10.1063/1.5044114</a>

Jazyk výsledku

angličtina

Název v původním jazyce

FEM modelling of fibre-concrete in development of blast resistant elements

Popis výsledku v původním jazyce

The paper summarizes the results of the development of fibre reinforced concrete intended for explosion resistant applications. Blast resistance of slurry infiltrated fibre concrete (SIFCON) with different amount and shape of fibres was investigated both experimentally and numerically. Test specimens with 2 types of steel fibres with different shape parameters in four volume fractions (2.5;5;7.5 and 10.0 vol. %) were investigated. Quasistatic mechanical properties have been determined and real blast test on the selected slab specimens were performed. The Finite Element (FE) method was used to predict the response of the slabs upon blast impact. New approach based on creation of the automatic scripts designed for generating of the FE network of fibre elements has been proposed and used. This approach enables creation of the FE model with various shape types and amounts of fibres. Calculations were performed in LS-Dyna solver. Using this concept, good agreement was concluded between the results of the real blast experiments and numerical simulations of slab specimens. The material characteristics and explosion test data have been used for numerical investigation, which defined the optimal wall composition and dimensions of the concrete element which should resist the explosion defined by type, size, weight and placement of the blast.

Název v anglickém jazyce

FEM modelling of fibre-concrete in development of blast resistant elements

Popis výsledku anglicky

The paper summarizes the results of the development of fibre reinforced concrete intended for explosion resistant applications. Blast resistance of slurry infiltrated fibre concrete (SIFCON) with different amount and shape of fibres was investigated both experimentally and numerically. Test specimens with 2 types of steel fibres with different shape parameters in four volume fractions (2.5;5;7.5 and 10.0 vol. %) were investigated. Quasistatic mechanical properties have been determined and real blast test on the selected slab specimens were performed. The Finite Element (FE) method was used to predict the response of the slabs upon blast impact. New approach based on creation of the automatic scripts designed for generating of the FE network of fibre elements has been proposed and used. This approach enables creation of the FE model with various shape types and amounts of fibres. Calculations were performed in LS-Dyna solver. Using this concept, good agreement was concluded between the results of the real blast experiments and numerical simulations of slab specimens. The material characteristics and explosion test data have been used for numerical investigation, which defined the optimal wall composition and dimensions of the concrete element which should resist the explosion defined by type, size, weight and placement of the blast.

Druh

D - Stať ve sborníku

CEP obor

—

OECD FORD obor

20100 - Civil engineering

Projekt

<a href="/cs/project/FV10120" target="_blank" >FV10120: Konstrukce na bázi dřeva a dřevních aglomerátů pro dopravní infrastrukturu</a><br>

Návaznosti

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

Rok uplatnění

2018

Kód důvěrnosti údajů

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

Název statě ve sborníku

AIP Conference Proceedings

ISBN

978-073541690-1

ISSN

—

e-ISSN

—

Počet stran výsledku

5

Strana od-do

—

Název nakladatele

—

Místo vydání

—

Místo konání akce

Thessaloniki, Greece

Datum konání akce

25. 9. 2017

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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