Detail publikace

A comparison of crack paths growth in brazilian disc with a central notch using various criteria for crack initiation

MIARKA, P. FURGIERI, G. RŮŽIČKA, V. SEITL, S. MERTA, I.

Originální název

A comparison of crack paths growth in brazilian disc with a central notch using various criteria for crack initiation

Typ

článek v časopise - ostatní, Jost

Jazyk

angličtina

Originální abstrakt

A numerical parametric study of the crack propagation under various level of mixed-mode condtions is evaluated. By focusing of the Linear Elastic Fracture Mechanics, the model with concrete input data of Brazilian Disc Test 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 an 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 criterion, the strain energy density criterion and the crack tip displacement 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. The Williams solution of the crack-tip stress and displacement fields are 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 suggested crack paths obtained by criteria are compared with experimental data.

Klíčová slova

Crack propagation direction; Crack-tip field; Mixed-mode I/II; Single-parameter MTS/SED/CTD criteria; J-integral

Autoři

MIARKA, P.; FURGIERI, G.; RŮŽIČKA, V.; SEITL, S.; MERTA, I.

Vydáno

31. 12. 2019

Místo

Ostrava, Česká republika

ISSN

1213-1962

Periodikum

Sborník vědeckých prací Vysoké školy báňské – Technické univerzity Ostrava

Ročník

19

Číslo

2

Stát

Česká republika

Strany od

33

Strany do

38

Strany počet

6

URL

http://tces.vsb.cz/Home/CurrentIssue

BibTex

@article{BUT161336,
  author="Petr {Miarka} and Guido {Furgieri} and Vladimír {Růžička} and Stanislav {Seitl} and Ildiko {Merta}",
  title="A comparison of crack paths growth in brazilian disc with a central notch using various criteria for crack initiation",
  journal="Sborník vědeckých prací Vysoké školy báňské – Technické univerzity Ostrava",
  year="2019",
  volume="19",
  number="2",
  pages="33--38",
  doi="10.35181/tces-2019-0017",
  issn="1213-1962",
  url="http://tces.vsb.cz/Home/CurrentIssue"
}