Design guide for stress-strain measurements of strain rate sensitive metals using impact experiments and DIC

Strain rate, how fast a material is strained, is known to have an effect on the behaviour of metals. Being able to measure the effect of strain rate in a material provides more reliable material data as input for material models. Strain rates up to 10 per second can be tested using a (fast) hydraulic testing machine. Strain rates upwards from...

The effect of nodal topology on cellular solid mechanics: A preliminary diagnostic experimental investigation

Additive manufacturing allows material structuring, supporting the fabrication of multiple-level structures or metamaterials. Through the lens of classical stress reduction, nature’s cellular solid structures feature stress-homogenizing nodal topologies. Avian long bones are an example. Research into the mechanics of open cell cellular solids...

Discrete 3D Digital Image Correlation (DIC) using particle reconnaissance

This bachelor project is done for the study of strain localisation in geomaterials. The conventional material testing only describes the fabric behaviour globally. In order to create better understanding of how sand/rock particles move under compression, micro X-ray CT-scans are made of specimens from the material in question. An X-ray CT-scan...