Detail publikace

Detailed Determination of Mechanical Fracture Parameters of Concrete after Fire Experiments

ŠIMONOVÁ, H. TRČKA, T. BEJČEK, M. ROZSYPALOVÁ, I. DANĚK, P. KERŠNER, Z.

Originální název

Detailed Determination of Mechanical Fracture Parameters of Concrete after Fire Experiments

Typ

článek ve sborníku ve WoS nebo Scopus

Jazyk

angličtina

Originální abstrakt

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 [–].

Klíčová slova

Concrete, high temperature, fracture test, 2D laser profile scanner.

Autoři

ŠIMONOVÁ, H.; TRČKA, T.; BEJČEK, M.; ROZSYPALOVÁ, I.; DANĚK, P.; KERŠNER, Z.

Vydáno

28. 2. 2018

Nakladatel

Trans Tech Publications

Místo

Switzerland

ISBN

978-3-0357-1284-1

Kniha

Solid State Phenomena: 24th Concrete Days

ISSN

1012-0394

Periodikum

Solid State Phenomena

Ročník

272

Stát

Švýcarská konfederace

Strany od

220

Strany do

225

Strany počet

6

BibTex

@inproceedings{BUT146230,
  author="Hana {Šimonová} and Tomáš {Trčka} and Michal {Bejček} and Iva {Čairović} and Petr {Daněk} and Zbyněk {Keršner}",
  title="Detailed Determination of Mechanical Fracture Parameters of Concrete after Fire Experiments",
  booktitle="Solid State Phenomena: 24th Concrete Days",
  year="2018",
  journal="Solid State Phenomena",
  volume="272",
  pages="220--225",
  publisher="Trans Tech Publications",
  address="Switzerland",
  doi="10.4028/www.scientific.net/SPP.272.220",
  isbn="978-3-0357-1284-1",
  issn="1012-0394"
}