Our first group of experiments took place on 19^th and 20^th of December 2019. Aluminium specimens with artificially created micro-structure were exposed to four-point bending on the Controls hydraulic testing machine.

We monitored deformations at the specific points of the specimens via strain gauges and with the appropriate software programs.

At the same time, the experiments have been video recorded using specialised GOM Aramis software for strain measurement.