Our second group of experiments took place on 28th of May 2020. Aluminium specimens were subjected to a four-point bending on Controls hydraulic testing machine. We had identical aluminium specimens as in the first group of experiments, but this time without artificially created micro-structure to obtain their Young’s modulus. This experiment is the part of the undergraduate thesis project of our student Damjan Jurković.

Strain-gauge soldering 
Strain-gauge is ready 
Preparations for the experiment 
The specimens were sprayed with a special spray intended for optical measurement 
The specimen subjected to pure bending