Strain Data from Scaled Three-Point-Bending Test for Sensor Fault Detection

This is data from a scaled three-point bending test in the SCALE research building at the multi-axial, dynamic loads test rig. A steel specimen (S235JRC+C) of dimension 1000 mm x 300 mm x 50 mm was subjected to a periodic sinusoidal loading in the range from 0 kN to 100 kN. The load was applied with 10 Hz for 9,151,833 load cycles in the middle of the specimen. Two support rolls with a diameter of 200 mm were used with a distance of 750 mm to one another.

On the bottom surface of the specimen, nine strain gauges of type HBM 1-LY11-6/120 are applied on three parallel lines along the specimen's width. One line (Line 1) 175 mm to the left of the specimen's middle, the second line (Line 2) directly at the middle and the third line (Line 3) 100 mm to the right of the specimen's middle. Each of the lines consists of three sensors which are applied equidistantly on each line. Data is acquired with a quarter bridge completion manufactured by the SincoTec Test Systems GmbH, which is connected to an HBM QuantumX840B data acquisition system, measuring with 100 Hz sampling rate.

The data consists of the raw data in form of TXT-files in a ZIP-archive. This contains the TXT-files which were saved every 60 minutes, where sensors are marked by their IDs, e.g. 3-1 meaning the first sensor on line 3. Furthermore, this raw data is available in the already preprocessed form in a single CSV-file for simpler further processing.