Category: Current projects

F.E. simulations of closed-cells foams under extreme compression

The mechanical response of isotropic elastomeric closed-cell foams with Classical Voronoi microstructures is examined through three-dimensional finite element simulations. The study focuses on finite-strain uniaxial compression, complemented by infinitesimal-strain shear and hydrostatic loading. Random foam geometries with porosities between 77% and 95% and narrow pore-size distributions were generated by subtracting irregular Voronoi polyhedra, constructed from […]

Microstamp: Stamps for DIC

We have been developping stamps to apply precise patterns on sample surfaces for local strain measurements using digital image correlation (DIC) during mechanical and thermal testing. Typically, when local strain measurements are needed in mechanical tests, sample surfaces are marked with spray paint or an airbrush to create a speckle pattern with good gray-level contrast. […]