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MALÍKOVÁ, L. DOUBEK, P. JUHÁSZOVÁ, T. KREJSA, M. SEITL, S.
Original Title
Fatigue crack propagation under corrosion of high-strength steel
Type
conference paper
Language
English
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.
Keywords
High-strength steel; finite element analysis; crack behaviour; corrosion
Authors
MALÍKOVÁ, L.; DOUBEK, P.; JUHÁSZOVÁ, T.; KREJSA, M.; SEITL, S.
Released
13. 1. 2023
Publisher
Elsevier
Location
online
ISBN
2452-3216
Periodical
Procedia Structural Integrity
Year of study
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" }