Publication result detail

Fracture parameters of a perpendicular crack with its tip close to a corrosion pit

MALÍKOVÁ, L.; DOUBEK, P.; JUHÁSZOVÁ, T.; SEITL, S.

Original Title

Fracture parameters of a perpendicular crack with its tip close to a corrosion pit

English Title

Fracture parameters of a perpendicular crack with its tip close to a corrosion pit

Type

Peer-reviewed article not indexed in WoS or Scopus

Original Abstract

Pitting corrosion is an important kind of damage of metal specimens. Therefore, this paper is devoted to investigation of mutual interaction of a corrosion pit and a fatigue perpendicular crack. A rectangular specimen subjected to remote tensile loading was modelled via finite elements and basic fracture parameters were calculated for various distances of the pit from the crack. Based on the obtained dependences of KI, KII (stress intensity factors for normal and shear modes) and B (parameter biaxiality) on the relative crack lengths (a/W), it can be summarized that the corrosion dimple is significant for the crack propagation only if the relative crack length is very short in comparison with the corrosion pit. Then, the corrosion pit can affect as a protection against the crack propagation.

English abstract

Pitting corrosion is an important kind of damage of metal specimens. Therefore, this paper is devoted to investigation of mutual interaction of a corrosion pit and a fatigue perpendicular crack. A rectangular specimen subjected to remote tensile loading was modelled via finite elements and basic fracture parameters were calculated for various distances of the pit from the crack. Based on the obtained dependences of KI, KII (stress intensity factors for normal and shear modes) and B (parameter biaxiality) on the relative crack lengths (a/W), it can be summarized that the corrosion dimple is significant for the crack propagation only if the relative crack length is very short in comparison with the corrosion pit. Then, the corrosion pit can affect as a protection against the crack propagation.

Keywords

Corrosion pit; finite element method; fracture parameters; perpendicular crack; high strength steel

Key words in English

Corrosion pit; finite element method; fracture parameters; perpendicular crack; high strength steel

Authors

MALÍKOVÁ, L.; DOUBEK, P.; JUHÁSZOVÁ, T.; SEITL, S.

RIV year

2023

Released

31.12.2022

Publisher

VŠB-TUO OSTRAVA

Location

Ostrava

ISBN

1804-4824

Periodical

Transactions of the VŠB – Technical University of Ostrava, Civil Engineering Series

Volume

22

Number

2

State

Czech Republic

Pages from

30

Pages to

34

Pages count

5

URL

http://tces.vsb.cz/Home/ArticleDetail/841

BibTex

@article{BUT180794,
  author="Lucie {Malíková} and Pavel {Doubek} and Tereza {Juhászová} and Stanislav {Seitl}",
  title="Fracture parameters of a perpendicular crack with its tip close to a corrosion pit",
  journal="Transactions of the VŠB – Technical University of Ostrava, Civil Engineering Series",
  year="2022",
  volume="22",
  number="2",
  pages="30--34",
  doi="10.35181/tces-2022-0011",
  issn="1804-4824",
  url="http://tces.vsb.cz/Home/ArticleDetail/841"
}