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MIARKA, P. FURGIERI, G. SEITL, S. RŮŽIČKA, V. MERTA, I.
Original Title
A comparison of crack paths in brazilian disc specimen by using various criteria for crack growth
Type
conference paper
Language
English
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, the model of concrete 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 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 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, Mixed-mode I/II, Crack-tip field, Single-parameter MTS/SED/CTD criteria, JIntegral.
Authors
MIARKA, P.; FURGIERI, G.; SEITL, S.; RŮŽIČKA, V.; MERTA, I.
Released
24. 5. 2019
Location
Ostrava
ISBN
978-80-248-4296-7
Book
17th International Conference Modelling in Mechanics
Pages from
1
Pages to
5
Pages count
URL
https://www.fast.vsb.cz/export/sites/fast/228/cs/konference-a-seminare/modelovani-v-mechanice/mm2019_sbornik_abstraktu.pdf
BibTex
@inproceedings{BUT158780, author="Petr {Miarka} and Guido {Furgieri} and Stanislav {Seitl} and Vladimír {Růžička} and Ildiko {Merta}", title="A comparison of crack paths in brazilian disc specimen by using various criteria for crack growth ", booktitle="17th International Conference Modelling in Mechanics", year="2019", pages="1--5", address="Ostrava", isbn="978-80-248-4296-7", url="https://www.fast.vsb.cz/export/sites/fast/228/cs/konference-a-seminare/modelovani-v-mechanice/mm2019_sbornik_abstraktu.pdf" }