####################################################################################################################################################################################################### 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). ####################################################################################################################################################################################################### Date and file overview ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- 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]. ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- 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. -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------