Publication detail

Crack propagating in a brittle DCB specimen described by using the Williams’ power expansion

MALÍKOVÁ, L. RAVAZI, S. BERTO, F.

Original Title

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

State

Republic of Italy

Pages from

317

Pages to

322

Pages count

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"
}