PhD defence

The strong and the weak: Nucleating insight into the role of mechanical heterogeneity on material failure

PhD candidate Sven JNM (Sven) Boots MSc
Promotor prof.dr.ir. J (Jasper) van der Gucht
Co-promotor dr. TE (Thomas) Kodger
Organisation Wageningen University, Physical Chemistry and Soft Matter
Date

Fri 8 April 2022 13:30 to 15:00

Venue

Summary

Leonardo da Vinci was the first to report about a fracture experiment; longer iron wires break earlier when loaded with equal weight. This is because of heterogeneity in the atomic structure, which are larger in longer wires. We explore this principle to study whether materials with controlled heterogeneity possess higher resistance to material failure. To do so, we characterize the produced materials on the basis of elasticity, by compressing them in a grid of points, and optimize the outcome by using computer simulations. In addition, we apply this method on meat replacements to compare the mechanical texture with animal meat. Furthermore, we explore two mechanosensors, light responsive molecules upon a mechanical stimulus, to gain mechanical information at a microscopic level out of the materials.