Detail publikačního výsledku

Tentative Characterization of Old Structural Concrete through Mechanical Fracture Parameters

ŠIMONOVÁ, H.; DANĚK, P.; FRANTÍK, P.; KERŠNER, Z.; VESELÝ, V.

Originální název

Tentative Characterization of Old Structural Concrete through Mechanical Fracture Parameters

Anglický název

Tentative Characterization of Old Structural Concrete through Mechanical Fracture Parameters

Druh

Stať ve sborníku v databázi WoS či Scopus

Originální abstrakt

Structural concrete of the building of Vítkovice railway station from 1970s is characterized via mechanical fracture parameters. In this paper, six core-drilled cylindrical specimens with diameter of 75 mm were provided by a Chevron type notch of depth of 12 mm. Three-point bending fracture tests were conducted on these specimens supported as beams with the span of 170 mm. Load vs. deflection and load vs. crack mouth opening displacement diagrams were recorded from which modulus of elasticity (E), fracture toughness (KIc) and fracture energy (GF) were determined using linear elastic fracture mechanics approach and work-offracture method. Mean values of these parameters (with their coefficient of variability) were obtained as follows: E = 39.4 GPa (29.1 %), KIc = 0.90 MPa·m1/2 (18.5 %), GF = 174.0 J/m2 (26.0 %). These parameters can serve as first guess or indicative values for structural assessment and life-time predictions.

Anglický abstrakt

Structural concrete of the building of Vítkovice railway station from 1970s is characterized via mechanical fracture parameters. In this paper, six core-drilled cylindrical specimens with diameter of 75 mm were provided by a Chevron type notch of depth of 12 mm. Three-point bending fracture tests were conducted on these specimens supported as beams with the span of 170 mm. Load vs. deflection and load vs. crack mouth opening displacement diagrams were recorded from which modulus of elasticity (E), fracture toughness (KIc) and fracture energy (GF) were determined using linear elastic fracture mechanics approach and work-offracture method. Mean values of these parameters (with their coefficient of variability) were obtained as follows: E = 39.4 GPa (29.1 %), KIc = 0.90 MPa·m1/2 (18.5 %), GF = 174.0 J/m2 (26.0 %). These parameters can serve as first guess or indicative values for structural assessment and life-time predictions.

Klíčová slova

Structural concrete; core-drilled samples; cylindrical specimen; Chevron notch; fracture test; mechanical fracture parameter

Klíčová slova v angličtině

Structural concrete; core-drilled samples; cylindrical specimen; Chevron notch; fracture test; mechanical fracture parameter

Autoři

ŠIMONOVÁ, H.; DANĚK, P.; FRANTÍK, P.; KERŠNER, Z.; VESELÝ, V.

Rok RIV

2018

Vydáno

02.06.2017

Nakladatel

Elsevier

Místo

Netherlands

Kniha

Procedia Engineering: Structural and Physical Aspects of Construction Engineering

ISSN

1877-7058

Periodikum

Procedia Engineering

Svazek

109

Stát

Spojené království Velké Británie a Severního Irska

Strany od

414

Strany do

418

Strany počet

5

URL

http://www.sciencedirect.com/science/article/pii/S1877705817324979

Plný text v Digitální knihovně

http://hdl.handle.net/11012/69355

BibTex

@inproceedings{BUT136760,
  author="Hana {Šimonová} and Petr {Daněk} and Petr {Frantík} and Zbyněk {Keršner} and Václav {Veselý}",
  title="Tentative Characterization of Old Structural Concrete through Mechanical Fracture Parameters",
  booktitle="Procedia Engineering: Structural and Physical Aspects of Construction Engineering",
  year="2017",
  journal="Procedia Engineering",
  volume="109",
  pages="414--418",
  publisher="Elsevier",
  address="Netherlands",
  doi="10.1016/j.proeng.2017.05.357",
  url="http://www.sciencedirect.com/science/article/pii/S1877705817324979"
}

Dokumenty

1-s2.0-S1877705817324979-main