Publication result detail

Influence of a corrosion pit on behavior of a nearby crack

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

Original Title

Influence of a corrosion pit on behavior of a nearby crack

English Title

Influence of a corrosion pit on behavior of a nearby crack

Type

Paper in proceedings (conference paper)

Original Abstract

Corrosion is a very complex problem, which is affected by many factors. Corrosion generally produces serious changes in the surface morphology and corrosion pits that develop on the structure surface can interact with other defect such as cracks. In this paper, the influence of a corrosion pit on fatigue propagation of a perpendicular crack in a bar subjected to tensile loading is analyzed. Particularly, the effect of various corrosion pit sizes and distances from the crack on basic fracture parameters is investigated. A numerical model of the described specimen with a crack and a corrosion pit close to each other has been created and finite element calculations have been performed in order to obtain dependences of stress intensity factor ranges and T-stress on the crack length. The plots obtained enable to formulate conclusions on crack behavior near a corrosion pit. It was found out that some configurations could lead to slower fatigue crack propagation and could slightly weaken the dominant mode I of loading.

English abstract

Corrosion is a very complex problem, which is affected by many factors. Corrosion generally produces serious changes in the surface morphology and corrosion pits that develop on the structure surface can interact with other defect such as cracks. In this paper, the influence of a corrosion pit on fatigue propagation of a perpendicular crack in a bar subjected to tensile loading is analyzed. Particularly, the effect of various corrosion pit sizes and distances from the crack on basic fracture parameters is investigated. A numerical model of the described specimen with a crack and a corrosion pit close to each other has been created and finite element calculations have been performed in order to obtain dependences of stress intensity factor ranges and T-stress on the crack length. The plots obtained enable to formulate conclusions on crack behavior near a corrosion pit. It was found out that some configurations could lead to slower fatigue crack propagation and could slightly weaken the dominant mode I of loading.

Keywords

Corrosion pit; fatigue; perpendicular crack; finite element method

Key words in English

Corrosion pit; fatigue; perpendicular crack; finite element method

Authors

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

RIV year

2024

Released

12.06.2023

Publisher

Elsevier

Location

online

ISBN

978-0-7354-4548-2

Book

AIP Conference Proceedings

ISBN

1551-7616

Periodical

AIP conference proceedings

Volume

2848

Number

1

State

United States of America

Pages from

1

Pages to

7

Pages count

7

URL

https://pubs.aip.org/aip/acp/article/2848/1/020003/2895666/Influence-of-a-corrosion-pit-on-behavior-of-a

BibTex

@inproceedings{BUT182265,
  author="Lucie {Malíková} and Tereza {Juhászová} and Pavel {Doubek} and Martin {Krejsa} and Stanislav {Seitl}",
  title="Influence of a corrosion pit on behavior of a nearby crack",
  booktitle="AIP Conference Proceedings",
  year="2023",
  journal="AIP conference proceedings",
  volume="2848",
  number="1",
  pages="1--7",
  publisher="Elsevier",
  address="online",
  doi="10.1063/5.0145104",
  isbn="978-0-7354-4548-2",
  issn="0094-243X",
  url="https://pubs.aip.org/aip/acp/article/2848/1/020003/2895666/Influence-of-a-corrosion-pit-on-behavior-of-a"
}