2026-04-17T20:35:16Zhttps://riubu.ubu.es/oai/requestoai:riubu.ubu.es:10259/48112023-02-14T07:56:03Zcom_10259_4809com_10259_5086com_10259_2604col_10259_4810
Repositorio Institucional de la Universidad de Burgos
author
Vicente Cabrera, Miguel Ángel
author
Ruiz, Gonzalo
author
González Cabrera, Dorys Carmen
author
Mínguez Algarra, Jesús
author
Tarifa, Manuel .
author
Zhang, Xiaoxin .
2018-06-18T09:43:52Z
2018-09
0142-1123
http://hdl.handle.net/10259/4811
10.1016/j.ijfatigue.2018.05.011
Most fatigue models for concrete under compression assume, as an axiom, that compressive tests are a limit case for a cyclic test where failure is achieved in the first cycle. This is supported by the fact that the crack patterns obtained in both cases are similar to the naked eye. This paper focuses on verifying whether this observation is correct or not. For that, we used a Computed Tomography Scan together with digital image processing to obtain 3D damage maps of tested 40 mm edge-length cubes made of steel fiber-reinforced concrete. The cubes were classified in series according to the type of loading: intact, monotonic and cyclic. They were scanned to acquire their 3D damage maps. Additionally, a specific post-processing algorithm was developed by the authors to compare the different crack patterns. The results show that average damage maps for monotonically and cyclically-tested cubes are statistically similar, thereby confirming the initial hypothesis for steel fiber-reinforced concrete. Furthermore, damage distribution near the platens apparently depends on whether it is a fixed platen or it is adjustable to the specimen surface due to a spherical seat.
eng
Attribution-NonCommercial-NoDerivatives 4.0 International
Fatigue of steel fiber-reinforced concrete
CT-Scan
digital image processing
3D crack pattern
CT-Scan study of crack patterns of fiber-reinforced concrete loaded monotonically and under low-cycle fatigue
info:eu-repo/semantics/article
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URL
https://riubu.ubu.es/bitstream/10259/4811/1/Vicente-IJF_2018.pdf
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https://riubu.ubu.es/bitstream/10259/4811/6/Vicente-IJF_2018.pdf.txt
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Vicente-IJF_2018.pdf.txt