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Acoustic emission signals in concrete beams under 3-point bending (polyolefin and steel fibre concrete)
Description
The DataSet contains the results of the mechanical behaviour of concrete beams with dimensions 40 x 40 x 160 cm3 under the 3-point bending. All specimens were manufactured based on the same concrete mixture composed of cement CEM I 42.5R (380 kg/m3), water (165 kg/m3), aggregate 0/2 mm (648 kg/m3), aggregate 2/8 mm (426 kg/m3), aggregate 8/16 mm (754 kg/m3), and super-plasticizer (0.8% of the cement content). Five different mixtures were produced. The first mixture was without fibres, i.e. made of plain concrete (PC). The other mixtures contained the addition of polyolefin fibres (PF) and steel fibres (SF), in the amount of 0.3% and 0.6% in the relation to the total volume of concrete. The bending test was performed using a Zwick/Roell Z10 universal testing machine (UTM). The parameters of the test were: a preload of 50 N, a constant mid-span displacement increment of 0.1 mm/min.
During the bending test, acoustic emission (AE) measurements were carried out. Acoustic emission signals were recorded using the Vallen AE system with a threshold of 34 dB and a sampling rate of 10 MHz. Four multilayer piezoelectric transducers were used for wave sensing. The arrangement of the sensors (numbered from S1 to S4) is shown in the figure below.
The experimental analysis was performed on five beams (denoted as beams #1–#5) made of different types of mixtures:
Plain concrete (beam #1)
0.3% polyolefin fibres (beam #2)
0.6% polyolefin fibres (beam #3)
0.3% steel fibres (beam #4)
0.6% steel fibres (beam #5)
The UTM file has (file extension *.txt) extension and contains the time of the test (in s, 2nd column), force (in N, 3rd column) and displacement of traverse (in mm, 4th column). The AE data are contained in two types of files: the primary data file (file extension *.pridb) contains the AE feature data; the transient data file (file extension *.tradb) contains the sampled signal. Pridb-files and tradb-files can be opened in any program that supports the SQLite3 standard.
Dataset file
hexmd5(md5(part1)+md5(part2)+...)-{parts_count} where a single part of the file is 512 MB in size.Example script for calculation:
https://github.com/antespi/s3md5
File details
- License:
-
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CC BYAttribution - Raw data:
- Data contained in dataset was not processed.
Details
- Year of publication:
- 2024
- Verification date:
- 2024-05-20
- Dataset language:
- English
- Fields of science:
-
- Civil engineering and transport (Engineering and Technology)
- mechanical engineering (Engineering and Technology)
- DOI:
- DOI ID 10.34808/ngar-8476 open in new tab
- Funding:
- Verified by:
- Gdańsk University of Technology
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