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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" }