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MIARKA, P. FURGIERI, G. RŮŽIČKA, V. SEITL, S. MERTA, I.
Original Title
A comparison of crack paths growth in brazilian disc with a central notch using various criteria for crack initiation
Type
journal article - other
Language
English
Original Abstract
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.
Keywords
Crack propagation direction; Crack-tip field; Mixed-mode I/II; Single-parameter MTS/SED/CTD criteria; J-integral
Authors
MIARKA, P.; FURGIERI, G.; RŮŽIČKA, V.; SEITL, S.; MERTA, I.
Released
31. 12. 2019
Location
Ostrava, Česká republika
ISBN
1213-1962
Periodical
Sborník vědeckých prací Vysoké školy báňské – Technické univerzity Ostrava
Year of study
19
Number
2
State
Czech Republic
Pages from
33
Pages to
38
Pages count
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" }