Publication result detail

Fatigue crack propagation under corrosion of high-strength steel

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

Original Title

Fatigue crack propagation under corrosion of high-strength steel

English Title

Fatigue crack propagation under corrosion of high-strength steel

Type

Paper in proceedings (conference paper)

Original Abstract

Corrosion is nearly unavoidable phenomenon in most of the metal materials. In this paper, its effect on the sharp edge crack propagation under tensile loading is investigated. A rectangular plate with a perpendicular crack and an elliptical corrosion pit nearby is modelled via finite elements and fracture behavior of the crack is analyzed. The multi-parameter fracture mechanics concept is applied, i.e. the higher-order terms of the Williams expansion are calculated by means of the over-deterministic method and utilized for tangential stress approximation in the vicinity of the crack tip. Thus, the generalized MTS criterion could be used for estimation of the crack deflection angle. The calculations were performed for a selected corrosion pit size and location considering various crack lengths. The results are discussed and a crack length with the highest probability to deflect from its original perpendicular propagation direction is found.

English abstract

Corrosion is nearly unavoidable phenomenon in most of the metal materials. In this paper, its effect on the sharp edge crack propagation under tensile loading is investigated. A rectangular plate with a perpendicular crack and an elliptical corrosion pit nearby is modelled via finite elements and fracture behavior of the crack is analyzed. The multi-parameter fracture mechanics concept is applied, i.e. the higher-order terms of the Williams expansion are calculated by means of the over-deterministic method and utilized for tangential stress approximation in the vicinity of the crack tip. Thus, the generalized MTS criterion could be used for estimation of the crack deflection angle. The calculations were performed for a selected corrosion pit size and location considering various crack lengths. The results are discussed and a crack length with the highest probability to deflect from its original perpendicular propagation direction is found.

Keywords

High-strength steel; finite element analysis; crack behaviour; corrosion

Key words in English

High-strength steel; finite element analysis; crack behaviour; corrosion

Authors

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

RIV year

2024

Released

13.01.2023

Publisher

Elsevier

Location

online

Book

Procedia Structural Integrity

ISBN

2452-3216

Periodical

Procedia Structural Integrity

Volume

43

Number

1

State

Republic of Italy

Pages from

264

Pages to

269

Pages count

6

URL

https://www.sciencedirect.com/science/article/pii/S2452321622008320

Full text in the Digital Library

http://hdl.handle.net/11012/213712

BibTex

@inproceedings{BUT181370,
  author="Lucie {Malíková} and Pavel {Doubek} and Tereza {Juhászová} and Martin {Krejsa} and Stanislav {Seitl}",
  title="Fatigue crack propagation under corrosion of high-strength steel",
  booktitle="Procedia Structural Integrity",
  year="2023",
  journal="Procedia Structural Integrity",
  volume="43",
  number="1",
  pages="264--269",
  publisher="Elsevier",
  address="online",
  doi="10.1016/j.prostr.2022.12.269",
  issn="2452-3216",
  url="https://www.sciencedirect.com/science/article/pii/S2452321622008320"
}

Documents

1-s2.0-S2452321622008320-main