Fatigue crack development in a low-carbon steel. Microstructure influence. Modelling
| creativework.keywords | Fatigue, Low-carbon steel, Microstructure, Short-crack propagation | |
| creativework.publisher | Elsevier B.V. | en |
| dc.contributor.author | Angelova D. | |
| dc.contributor.author | Yordanova R. | |
| dc.contributor.author | Yankova S. | |
| dc.date.accessioned | 2024-07-10T14:27:04Z | |
| dc.date.accessioned | 2024-07-10T14:48:56Z | |
| dc.date.available | 2024-07-10T14:27:04Z | |
| dc.date.available | 2024-07-10T14:48:56Z | |
| dc.date.issued | 2016-01-01 | |
| dc.description.abstract | Fatigue in a low-carbon steel with ferrite and pearlite microstructure is investigated through testing of three groups of specimens. Two of the groups consist of cylindrical specimens subjected to tension-tension and rotating-bending fatigue; in this case surface microstructurally-short crack propagation is monitored by acetate-foil replica technique. The third group of specimens includes flat specimens preliminary notched by FIB-technique and then subjected to pure-bending fatigue. The study is focused on examining of crack paths in terms of interaction between the propagating short cracks and the microstructure. The obtained data for pure-bending fatigue show higher crack growth rates and shorter fatigue lifetimes than those found for rotating-bending fatigue. In comparison, the registered tension-tension fatigue data present the lowest crack growth rates, due to much lesser loading than that applied at rotating-bending and pure-bending fatigue. Based on data obtained, a Parabolic-linear model ``Crack growth rate - Crack length`` is used for describing and predicting adequately short crack propagation under the specified three types of fatigue. The model is supported by a comparison between the predicted and the actual fatigue lifetimes. | |
| dc.identifier.doi | 10.1016/j.prostr.2016.06.340 | |
| dc.identifier.issn | 2452-3216 | |
| dc.identifier.scopus | SCOPUS_ID:85031851995 | en |
| dc.identifier.uri | https://rlib.uctm.edu/handle/123456789/444 | |
| dc.language.iso | en | |
| dc.source.uri | https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85031851995&origin=inward | |
| dc.title | Fatigue crack development in a low-carbon steel. Microstructure influence. Modelling | |
| dc.type | Conference Paper | |
| oaire.citation.volume | 2 |