Fatigue crack propagation under corrosion of high-strength steel

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081723%3A_____%2F23%3A00579870" target="_blank" >RIV/68081723:_____/23:00579870 - isvavai.cz</a>
Alternative codes found
RIV/61989100:27120/23:10253550 RIV/00216305:26110/23:PU146906
Result on the web
<a href="http://dx.doi.org/10.1016/j.prostr.2022.12.269" target="_blank" >http://dx.doi.org/10.1016/j.prostr.2022.12.269</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.prostr.2022.12.269" target="_blank" >10.1016/j.prostr.2022.12.269</a>

Result language
angličtina
Original language name
Fatigue crack propagation under corrosion of high-strength steel
Original language description
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.
Czech name
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Czech description
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Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2023
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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