Detailed Determination of Mechanical Fracture Parameters of Concrete after Fire Experiments

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26110%2F18%3APU127247" target="_blank" >RIV/00216305:26110/18:PU127247 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.4028/www.scientific.net/SPP.272.220" target="_blank" >http://dx.doi.org/10.4028/www.scientific.net/SPP.272.220</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.4028/www.scientific.net/SPP.272.220" target="_blank" >10.4028/www.scientific.net/SPP.272.220</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Detailed Determination of Mechanical Fracture Parameters of Concrete after Fire Experiments

Popis výsledku v původním jazyce

Detailed Determination of Mechanical Fracture Parameters of Concrete after Fire ExperimentsThe aim of this paper is to describe the procedure of determining the mechanical fracture parameters of selected concrete specimens taken from panels after the fire experiments. The records (in form load vs displacement diagrams) of three-point bending fracture tests of these specimens with initial stress concentrators was first advanced corrected and subsequently evaluated using the Effective Crack Model and the work-of-fracture method. The increasing temperatures during the fire experiments ranging between 550 to 1000 °C led to a decrease of modulus of elasticity and fracture toughness values and to the increase of fracture energy value. The 2D laser profile scanner was used to estimate the degree of complexity of fracture surfaces; its statistical dependence on the mechanical fracture parameters proved to be moderate – the absolute value of the correlation coefficient was about 0.5 [–].

Název v anglickém jazyce

Detailed Determination of Mechanical Fracture Parameters of Concrete after Fire Experiments

Popis výsledku anglicky

Detailed Determination of Mechanical Fracture Parameters of Concrete after Fire ExperimentsThe aim of this paper is to describe the procedure of determining the mechanical fracture parameters of selected concrete specimens taken from panels after the fire experiments. The records (in form load vs displacement diagrams) of three-point bending fracture tests of these specimens with initial stress concentrators was first advanced corrected and subsequently evaluated using the Effective Crack Model and the work-of-fracture method. The increasing temperatures during the fire experiments ranging between 550 to 1000 °C led to a decrease of modulus of elasticity and fracture toughness values and to the increase of fracture energy value. The 2D laser profile scanner was used to estimate the degree of complexity of fracture surfaces; its statistical dependence on the mechanical fracture parameters proved to be moderate – the absolute value of the correlation coefficient was about 0.5 [–].

Druh

D - Stať ve sborníku

CEP obor

—

OECD FORD obor

20101 - Civil engineering

Projekt

—

Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2018

Kód důvěrnosti údajů

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

Název statě ve sborníku

Solid State Phenomena: 24th Concrete Days

ISBN

978-3-0357-1284-1

ISSN

1012-0394

e-ISSN

—

Počet stran výsledku

6

Strana od-do

220-225

Název nakladatele

Trans Tech Publications

Místo vydání

Switzerland

Místo konání akce

Litomyšl

Datum konání akce

22. 11. 2017

Typ akce podle státní příslušnosti

EUR - Evropská akce

Kód UT WoS článku

—