Detail publikace

Identification of mechanical fracture parameters for estimation of statistical properties of geopolymer mortars

ŠIMONOVÁ, H. LIPOWCZAN, M. LEHKÝ, D. KUCHARCZYKOVÁ, B. KERŠNER, Z.

Originální název

Identification of mechanical fracture parameters for estimation of statistical properties of geopolymer mortars

Typ

článek ve sborníku mimo WoS a Scopus

Jazyk

angličtina

Originální abstrakt

The aim of this paper is to identify statistics of mechanical fracture parameters based on evaluation of fracture tests records. The prism specimens made from fine-grained composite based on alkali activated fly ash matrix with nominal dimension 40 × 40 × 160 mm and initial central edge notch were subjected to fracture tests in three-point bending configuration. The dependence of load F on displacement d (deflection in the middle of the span length) was recorded during the fracture tests. The obtained F−d diagrams and specimen dimensions were used as input data for parameters identification via inverse analysis based on artificial neural network, which aim is to transfer the fracture test response data to the desired material parameters. In this paper, the modu-lus of elasticity, tensile strength and fracture energy values were identified and subsequently compared with values obtained based on fracture test evaluation using effective crack model and work-of-fracture method.

Klíčová slova

mechanical fracture parameters, identification, geopolymer mortar

Autoři

ŠIMONOVÁ, H.; LIPOWCZAN, M.; LEHKÝ, D.; KUCHARCZYKOVÁ, B.; KERŠNER, Z.

Vydáno

12. 9. 2018

Nakladatel

Wilhelm Ernst & Sohn

Místo

Berlin

ISSN

1437-1006

Periodikum

Beton- und Stahlbetonbau

Ročník

113

Číslo

S2

Stát

Spolková republika Německo

Strany od

1

Strany do

5

Strany počet

5

URL

https://onlinelibrary.wiley.com/action/downloadSupplement?doi=10.1002%2Fbest.201800059&file=best201800059-sup-0001-suppinfo.pdf

BibTex

@inproceedings{BUT149934,
  author="Hana {Šimonová} and Martin {Lipowczan} and David {Lehký} and Barbara {Kucharczyková} and Zbyněk {Keršner}",
  title="Identification of mechanical fracture parameters for estimation of statistical properties of geopolymer mortars",
  booktitle="16th International Probabilistic Workshop",
  year="2018",
  journal="Beton- und Stahlbetonbau",
  volume="113",
  number="S2",
  pages="1--5",
  publisher="Wilhelm Ernst & Sohn",
  address="Berlin",
  issn="1437-1006",
  url="https://onlinelibrary.wiley.com/action/downloadSupplement?doi=10.1002%2Fbest.201800059&file=best201800059-sup-0001-suppinfo.pdf"
}