We look at a mechanical metamaterial whose stiffness does not scale inversely proportional to its length. We perform tensile tests to study the relation between the length and the stiffness of the...Show moreWe look at a mechanical metamaterial whose stiffness does not scale inversely proportional to its length. We perform tensile tests to study the relation between the length and the stiffness of the metamaterial. We find two regimes for the stiffness, which are separated by a characteristic length. We explain the cause of this length and show that we can alter its value. Lastly we set up a model that simulates the behavior of the metamaterial in tension and can reproduce the experimental data.Show less
In this thesis we investigate the effects of bending on a Miura Ori Origami sheet. In particular we are going to analyse a simplified version, a single stripe made by a row of unit cells. We will...Show moreIn this thesis we investigate the effects of bending on a Miura Ori Origami sheet. In particular we are going to analyse a simplified version, a single stripe made by a row of unit cells. We will investigate how the bending stiffness and the curvature at the surface are changing with the variation of the fold angle of the structure and with the application of an external force. We investigate the curvature by scanning the samples with a 3D scanner and then analysing the data. To probe the bending stiffness, we use an Instron, a uniaxial compression device.Show less
