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MALÍKOVÁ, L. RAVAZI, S. BERTO, F.
Original Title
Crack propagating in a brittle DCB specimen described by using the Williams’ power expansion
Type
article in a collection out of WoS and Scopus
Language
English
Original Abstract
A double cantilever beam geometry has been chosen in order to investigate the importance of the higher-order terms of the Williams' power expansion for the crack path estimation. The crack propagation has been tested experimentally on a brittle polymethylmethacrylate (PMMA) specimen and, although the mode I loading conditions were applied, the crack kinked from its original plane immediately and propagated towards the bottom side of the specimen. It has been shown that this phenomenon is connected to the magnitude and sign of the T-stress and to the level of the constraint generally. In this work, the influence of the third and higher terms of the Williams' series on the crack propagation is investigated. The generalized form of the well-known maximum tangential stress fracture criterion for determination of the crack propagation angle is tested and discussed
Keywords
DCB specimen; Williams' power expansion; generalized MTS criterion; crack deflection
Authors
MALÍKOVÁ, L.; RAVAZI, S.; BERTO, F.
Released
19. 9. 2018
Location
Verona, Itálie
ISBN
2532-2443
Periodical
Gruppo Italiano Frattura
Year of study
2018
Number
1
State
Republic of Italy
Pages from
317
Pages to
322
Pages count
6
BibTex
@inproceedings{BUT156489, author="Lucie {Malíková} and Seyed Mohammad Javad {Ravazi} and Filippo {Berto}", title="Crack propagating in a brittle DCB specimen described by using the Williams’ power expansion", booktitle="6th International Conference on Crack Paths", year="2018", journal="Gruppo Italiano Frattura", volume="2018", number="1", pages="317--322", address="Verona, Itálie", issn="2532-2443" }