Detail publikace

Evaluation of Three-point Bending Fracture Tests of Selected Concrete: Mechanical Fracture Parameters

ŠIMONOVÁ, H. DANĚK, P. LEHKÝ, D. KERŠNER, Z. PAZDERA, L.

Originální název

Evaluation of Three-point Bending Fracture Tests of Selected Concrete: Mechanical Fracture Parameters

Typ

článek ve sborníku ve WoS nebo Scopus

Jazyk

angličtina

Originální abstrakt

In this paper, authors focus attention on mechanical fracture parameters obtained from records of three-point bending fracture tests on concrete specimens with initial notch. Total eight sets of specimens were tested. Three specimens at the age of 28 days were tested in each set. Concrete was different in dosage of Portland cement CEM I 42.5 R and amount of used superplasticizer. The Effective Crack Model (ECM) was used to evaluate the load vs deflection diagrams to obtain modulus of elasticity and effective fracture toughness; specific fracture energy was determined using work-of-fracture method. Modulus of elasticity, tensile strength and fracture energy were also subject of identification via inverse analysis based on artificial neural network, which aim is to transfer the input data obtained from the fracture test to the desired material parameters.

Klíčová slova

Concrete, fracture test, three-point bending, identification.

Autoři

ŠIMONOVÁ, H.; DANĚK, P.; LEHKÝ, D.; KERŠNER, Z.; PAZDERA, L.

Vydáno

19. 5. 2017

Nakladatel

Trans Tech Publications

Místo

Switzerland

ISBN

978-3-0357-1105-9

Kniha

Solid State Phenomena: 23rd Concrete Days

ISSN

1012-0394

Periodikum

Solid State Phenomena

Číslo

259

Stát

Švýcarská konfederace

Strany od

64

Strany do

69

Strany počet

6

BibTex

@inproceedings{BUT135871,
  author="Hana {Šimonová} and Petr {Daněk} and David {Lehký} and Zbyněk {Keršner} and Luboš {Pazdera}",
  title="Evaluation of Three-point Bending Fracture Tests of Selected Concrete: Mechanical Fracture Parameters",
  booktitle="Solid State Phenomena: 23rd Concrete Days",
  year="2017",
  journal="Solid State Phenomena",
  number="259",
  pages="64--69",
  publisher="Trans Tech Publications",
  address="Switzerland",
  doi="10.4028/www.scientific.net/SSP.259.64",
  isbn="978-3-0357-1105-9",
  issn="1012-0394"
}