Publication detail

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

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

Original Title

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

Type

article in a collection out of WoS and Scopus

Language

English

Original Abstract

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.

Keywords

mechanical fracture parameters, identification, geopolymer mortar

Authors

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

Released

12. 9. 2018

Publisher

Wilhelm Ernst & Sohn

Location

Berlin

ISBN

1437-1006

Periodical

Beton- und Stahlbetonbau

Year of study

113

Number

S2

State

Federal Republic of Germany

Pages from

1

Pages to

5

Pages count

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"
}