Publication result detail

COMPARISON OF CRACK PATHS BY USING SELECTED CRITERIA IN BRAZILIAN DISC SPECIMEN

FURGIERI, G.; MIARKA, P.; SEITL, S.; KLUSÁK, J.

Original Title

COMPARISON OF CRACK PATHS BY USING SELECTED CRITERIA IN BRAZILIAN DISC SPECIMEN

English Title

COMPARISON OF CRACK PATHS BY USING SELECTED CRITERIA IN BRAZILIAN DISC SPECIMEN

Type

Paper in proceedings (conference paper)

Original Abstract

A numerical parametric study of the crack propagation under various level of mixed-mode conditions is evaluated. By focusing of the Linear Elastic Fracture Mechanics (LEFM), the model of concrete Brazilian Disc Test (BDCN) with a central notch is considered and its analysis with defined radius R, force P and material properties is performed. The results are obtained by varying the length a of the central notch and its angle of inclination α with respect to the horizontal axis. The crack growth direction is estimated through three different criteria: the maximum tangential stress (MTS) criterion, the strain energy density (SED) criterion and the crack tip displacement (CTD) criterion. This study involves the classical single-parameter fracture mechanics concept, in which the stress distribution in a cracked specimen is described by the stress intensity factors (SIFs). The Williams solution of the crack-tip stress and displacement fields is taken into account. As a comparison, the solution is also provided with J-Integral. The model is created with the finite element method software ANSYS. Lastly, the crack paths obtained are compared with experimental data.

English abstract

A numerical parametric study of the crack propagation under various level of mixed-mode conditions is evaluated. By focusing of the Linear Elastic Fracture Mechanics (LEFM), the model of concrete Brazilian Disc Test (BDCN) with a central notch is considered and its analysis with defined radius R, force P and material properties is performed. The results are obtained by varying the length a of the central notch and its angle of inclination α with respect to the horizontal axis. The crack growth direction is estimated through three different criteria: the maximum tangential stress (MTS) criterion, the strain energy density (SED) criterion and the crack tip displacement (CTD) criterion. This study involves the classical single-parameter fracture mechanics concept, in which the stress distribution in a cracked specimen is described by the stress intensity factors (SIFs). The Williams solution of the crack-tip stress and displacement fields is taken into account. As a comparison, the solution is also provided with J-Integral. The model is created with the finite element method software ANSYS. Lastly, the crack paths obtained are compared with experimental data.

Keywords

Crack propagation direction, Mixed-mode, Crack-tip field, Single-parameter MTS/SED/CTD criteria, JIntegral

Key words in English

Crack propagation direction, Mixed-mode, Crack-tip field, Single-parameter MTS/SED/CTD criteria, JIntegral

Authors

FURGIERI, G.; MIARKA, P.; SEITL, S.; KLUSÁK, J.

RIV year

2019

Released

03.04.2019

Publisher

Grupo Espanol de Fratura

Location

Sevilla

Book

ANALES DE MECÁNICA DE LA FRACTURA

ISBN

0213-3725

Periodical

Anales de Mecánica de la Fractura

Volume

36

Number

1

State

Kingdom of Spain

Pages from

466

Pages to

467

Pages count

2

BibTex

@inproceedings{BUT156542,
  author="Guido {Furgieri} and Petr {Miarka} and Stanislav {Seitl} and Jan {Klusák}",
  title="COMPARISON OF CRACK PATHS BY USING SELECTED CRITERIA IN BRAZILIAN DISC SPECIMEN",
  booktitle="ANALES DE MECÁNICA DE LA FRACTURA",
  year="2019",
  journal="Anales de Mecánica de la Fractura",
  volume="36",
  number="1",
  pages="466--467",
  publisher="Grupo Espanol de Fratura",
  address="Sevilla",
  issn="0213-3725"
}