Detail publikačního výsledku

Crack propagation in a brittle DCB specimen assessed by means of the Williams’ power expansion

MALÍKOVÁ, L.; RAVAZI, S.; BERTO, F.

Originální název

Crack propagation in a brittle DCB specimen assessed by means of the Williams’ power expansion

Anglický název

Crack propagation in a brittle DCB specimen assessed by means of the Williams’ power expansion

Druh

Článek Scopus

Originální abstrakt

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 has been tested and discussed. The observed differences in the crack trajectory of different specimens have been found to be related to the magnitude of the higher-order terms of the stress tensor components at the crack tip.

Anglický abstrakt

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 has been tested and discussed. The observed differences in the crack trajectory of different specimens have been found to be related to the magnitude of the higher-order terms of the stress tensor components at the crack tip.

Klíčová slova

Crack deflection; DCB specimen; Generalized MTS criterion; Geometry effect; Williams’ power expansion

Klíčová slova v angličtině

Crack deflection; DCB specimen; Generalized MTS criterion; Geometry effect; Williams’ power expansion

Autoři

MALÍKOVÁ, L.; RAVAZI, S.; BERTO, F.

Rok RIV

2019

Vydáno

01.04.2019

Nakladatel

Gruppo Italiano Frattura

Místo

Verona, Itálie

Kniha

6th International Conference on Crack Paths

ISSN

1971-8993

Periodikum

Fracture and structural integrity

Svazek

13

Číslo

48

Stát

Italská republika

Strany od

34

Strany do

41

Strany počet

8

URL

https://www.fracturae.com/index.php/fis/article/view/2292/2350

Plný text v Digitální knihovně

http://hdl.handle.net/11012/180631

BibTex

@article{BUT156404,
  author="Lucie {Malíková} and Seyed Mohammad Javad {Ravazi} and Filippo {Berto}",
  title="Crack propagation in a brittle DCB specimen assessed by means of the Williams’ power expansion",
  journal="Fracture and structural integrity",
  year="2019",
  volume="13",
  number="48",
  pages="34--41",
  doi="10.3221/IGF-ESIS.48.05",
  url="https://www.fracturae.com/index.php/fis/article/view/2292/2350"
}

Dokumenty

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