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Dataset: Four-point bending tests on concrete elements with weft-knitted textile reinforcement, short integral AR glass fibres and spatial features (KnitCrete).
Authors: Minu Lee, Dr. Jaime Mata-Falcón, Prof. Dr. Walter Kaufmann
Institution: Institute of Structural Engineering (IBK), Department of Civil, Environmental and Geomatic Engineering (D-BAUG), Swiss Federal Institute of Technology Zürich (ETHZ)
Date: 2020-2022
Keywords: textile reinforced concrete, bending, tension chord, experimental study, digital image correlation, crack behaviour, fibre reinforced concrete, KnitCrete
Acknowledgement: This research is supported by the National Centre for Competence in Research in Digital Fabrication, funded by the Swiss National Science Foundation (project number 51NF40-141853).
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Date and file overview
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File: data_KnitCrete_bending_tests.mat
Format: MAT-file, created in Matlab 2021b, v7.3
Data is organised as structural array. Individual fields are explained here:
FRC. Organised as structural array:
_ geometry: Geometrical parameters of the specimen and test setup. Organised as structural array.
_________ width: Average width of specimen in millimetres [mm].
_________ height: Average height of specimen in millimetres [mm].
_________ depth: Average depth of the reinforcement measured from the top of the specimen cross-section in millimetres [mm].
_________ span: Total span between the supports in millimetres [mm].
_________ shear_span: Distance of the load introduction from the support in millimeters [mm].
_________ X_left: X-coordinate of the left support in millimetres [mm].
_________ X_right: X-coordinate of the right support in millimeters [mm].
_________ Y_mid: Y-coordinate of the neutral axis of the specimen in millimetres [mm].
_ fibre: Properties of short integral AR glass fibres. Organised as structural array.
_________ volume: Volumetrical fibre content in percent [%].
_________ material: Material type of fibres. AR = Alkali-resistant glass fibres.
_________ tex: Fineness of fibre strand [tex].
_________ length: Length of one fibre strand in millimetres [mm].
_________ density: Density of fibre material in kilogram per cubic-meters [kg/m3].
_ test: Measurements from digital image correlation. Organised as structural array.
_________ time: Time stamp of measurements.
_________ image_ID: Image number of DIC measurement.
_________ force: Total force frome load cell in Kilo-Newton [kN].
_________ displacement: Vertical deflections in millimetres [mm].
_________ X: X-coordinates of data points downsampled to one data row in millimetres [mm].
_________ Y: Y-coordinates of data points downsampled to one data row in millimetres [mm].
_________ Z: Z-coordinates of data points downsampled to one data row in millimetres [mm].
_________ U: Displacements in X-direction of data points downsampled to one data rows in millimetres [mm].
_________ V: Displacements in Y-direction of data points downsampled to one data rows in millimetres [mm].
_________ W: Displacements in Z-direction of data points downsampled to one data rows in millimetres [mm].
_________ X_sup: X-coordinates of upper row of data points downsampled to two data rows in millimetres [mm].
_________ Y_sup: Y-coordinates of upper row of data points downsampled to two data rows in millimetres [mm].
_________ Z_sup: Z-coordinates of upper row of data points downsampled to two data rows in millimetres [mm].
_________ U_sup: Displacements in X-direction of upper row of data points downsampled to two data rows in millimetres [mm].
_________ V_sup: Displacements in Y-direction of upper row of data points downsampled to two data rows in millimetres [mm].
_________ W_sup: Displacements in Z-direction of upper row of data points downsampled to two data rows in millimetres [mm].
_________ X_inf: X-coordinates of lower row of data points downsampled to two data rows in millimetres [mm].
_________ Y_inf: Y-coordinates of lower row of data points downsampled to two data rows in millimetres [mm].
_________ Z_inf: Z-coordinates of lower row of data points downsampled to two data rows in millimetres [mm].
_________ U_inf: Displacements in X-direction of lower row of data points downsampled to two data rows in millimetres [mm].
_________ V_inf: Displacements in Y-direction of lower row of data points downsampled to two data rows in millimetres [mm].
_________ W_inf: Displacements in Z-direction of lower row of data points downsampled to two data rows in millimetres [mm].
_________ idx_cr: Indices of measurements considered for crack width analysis.
_________ w_rf: Crack opening at the depth of the reinforcement in millimetres [mm].
_________ x_c: Depth of the compression zone in millimetres [mm].
TRC. Organised as structural array:
_ specimen_ID: Specimen nomenclature
_ geometry: Geometrical parameters of the specimen and test setup. Organised as structural array.
_________ width: Average width of specimen in millimetres [mm].
_________ height: Average height of specimen in millimetres [mm].
_________ depth: Average depth of the reinforcement measured from the top of the specimen cross-section in millimetres [mm].
_________ span: Total span between the supports in millimetres [mm].
_________ shear_span: Distance of the load introduction from the support in millimeters [mm].
_________ X_left: X-coordinate of the left support in millimetres [mm].
_________ X_right: X-coordinate of the right support in millimeters [mm].
_________ Y_mid: Y-coordinate of the neutral axis of the specimen in millimetres [mm].
_ textile: Properties of the textile reinforcement. Organised as structural array.
_________ material: Type of fibre material used as main reinforcement: AF = aramid; CF = carbon fibre; GF = glass fibres.
_________ coating: Type of coating. C = Cement paste; E = Epoxy.
_________ number_of_rovings: Number of rovings crossing the section.
_________ density: Density of fibre material in kilogram per cubic-metres [kg/m3].
_________ roving_diameter: Diameter of the yarn, assuming a circular cross-section in millimetres [mm].
_ fibre: Properties of short integral AR glass fibres. Organised as structural array.
_________ volume: Volumetrical fibre content in percent [%].
_________ material: Material type of fibres. AR = Alkali-resistant glass fibres.
_________ tex: Fineness of fibre strand [tex].
_________ length: Length of one fibre strand in millimetres [mm].
_________ density: Density of fibre material in kilogram per cubic-meters [kg/m3].
_ test: Measurements from digital image correlation. Organised as structural array.
_________ time: Time stamp of measurements.
_________ image_ID: Image number of DIC measurement.
_________ force: Total force frome load cell in Kilo-Newton [kN].
_________ displacement: Vertical deflections in millimetres [mm].
_________ textile_stress: Stresses in textile reinforcement at the crack in Mega-Pascal [MPa].
_________ epsilon_tm: Mean strains in textile reinforcement in permille [‰].
_________ X: X-coordinates of data points downsampled to one data row in millimetres [mm].
_________ Y: Y-coordinates of data points downsampled to one data row in millimetres [mm].
_________ Z: Z-coordinates of data points downsampled to one data row in millimetres [mm].
_________ U: Displacements in X-direction of data points downsampled to one data rows in millimetres [mm].
_________ V: Displacements in Y-direction of data points downsampled to one data rows in millimetres [mm].
_________ W: Displacements in Z-direction of data points downsampled to one data rows in millimetres [mm].
_________ X_sup: X-coordinates of upper row of data points downsampled to two data rows in millimetres [mm].
_________ Y_sup: Y-coordinates of upper row of data points downsampled to two data rows in millimetres [mm].
_________ Z_sup: Z-coordinates of upper row of data points downsampled to two data rows in millimetres [mm].
_________ U_sup: Displacements in X-direction of upper row of data points downsampled to two data rows in millimetres [mm].
_________ V_sup: Displacements in Y-direction of upper row of data points downsampled to two data rows in millimetres [mm].
_________ W_sup: Displacements in Z-direction of upper row of data points downsampled to two data rows in millimetres [mm].
_________ X_inf: X-coordinates of lower row of data points downsampled to two data rows in millimetres [mm].
_________ Y_inf: Y-coordinates of lower row of data points downsampled to two data rows in millimetres [mm].
_________ Z_inf: Z-coordinates of lower row of data points downsampled to two data rows in millimetres [mm].
_________ U_inf: Displacements in X-direction of lower row of data points downsampled to two data rows in millimetres [mm].
_________ V_inf: Displacements in Y-direction of lower row of data points downsampled to two data rows in millimetres [mm].
_________ W_inf: Displacements in Z-direction of lower row of data points downsampled to two data rows in millimetres [mm].
_________ idx_cr: Indices of measurements considered for crack width analysis.
_________ w_rf: Crack opening at the depth of the reinforcement in millimetres [mm].
_________ x_c: Depth of the compression zone in millimetres [mm].
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Folder: ACDM_output_files
Files:
01_AF-fib-1.mat
01_AF-fib-2.mat
02_CF-fib-1.mat
02_CF-fib-2.mat
03_GF-fib-1.mat
03_GF-fib-2.mat
04_AF-flat-1.mat
04_AF-flat-2.mat
05_AF-rib+-1.mat
05_AF-rib+-2.mat
06_AF-ribX-1.mat
06_AF-ribX-2.mat
07_AF-ribT-1.mat
07_AF-ribT-2.mat
Format: MAT-file, created in Matlab 2021b, v7.3, with open source software Automatic Crack Detection and Measurement (ACDM) available here: https://gitlab.ethz.ch/ibk-kfm-public/acdm/-/releases
Data is organised as output files from ACDM.
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