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MALÍKOVÁ, L. ŠIMONOVÁ, H. KUCHARCZYKOVÁ, B. MIARKA, P.
Original Title
Multi-parameter fracture mechanics: crack path in a mixed-mode specimen
Type
journal article in Scopus
Language
English
Original Abstract
A mixed-mode geometry has been chosen to investigate a crack propagation using the multi-parameter fracture mechanics concept. The socalled Williams’ series expansion is used for the crack-tip stress field approximation. It has been shown that application of the generalized fracture mechanics concept can be crucial for materials with specific fracture behaviour, such as elastic-plastic or quasi-brittle one, when fracture occurs not only in the very vicinity of the crack tip, but also in a more distant surrounding. Then, considering the higher-order terms of the Williams’ expansion in fracture criteria (describing the crack stability and/or crack propagation direction) can bring more precise results. The coefficients of the Williams’ expansion must be calculated numerically (for instance by means of the overdeterministic method in this work) for each cracked configuration, which is very time-consuming, and the analysis is very extensive even for a few basic cracked specimen configurations. On the other hand, a suitable choice of the geometrical configuration of the cracked disc enables performing experiments only on the specimens that could prove the theory about the importance of using the higher-order terms.
Keywords
Crack-tip field; Multi-parameter fracture mechanics; Finite element analysis; Mixed-mode; Williams’ expansion.
Authors
MALÍKOVÁ, L.; ŠIMONOVÁ, H.; KUCHARCZYKOVÁ, B.; MIARKA, P.
Released
2. 7. 2019
Publisher
Gruppo Italiano Frattura
Location
Italy
ISBN
1971-8993
Periodical
Frattura ed Integrita Strutturale
Year of study
13
Number
49
State
Republic of Italy
Pages from
65
Pages to
73
Pages count
9
URL
https://www.fracturae.com/index.php/fis/article/view/2491
Full text in the Digital Library
http://hdl.handle.net/11012/180639
BibTex
@article{BUT157498, author="Lucie {Malíková} and Hana {Šimonová} and Barbara {Kucharczyková} and Petr {Miarka}", title="Multi-parameter fracture mechanics: crack path in a mixed-mode specimen", journal="Frattura ed Integrita Strutturale", year="2019", volume="13", number="49", pages="65--73", doi="10.3221/IGF-ESIS.49.07", issn="1971-8993", url="https://www.fracturae.com/index.php/fis/article/view/2491" }