The paper is aimed at testing the newly developed elasto-plastic material model with damage for the description of non-linear mechanical behaviour of the woven composites. Capabilities of the material model are verified by the usage of the experimental testing of the specimens with ...

A drop test was carried out to investigate mechanical behaviour of commercially available polymeric materials, namely expanded foams, polyurethane elastomers and urethane plastic. The Shore A hardness of presented material was verified. Moreover, the influence of the impact from higher position&#...

We compare two homogenized models of the microcirculation which rely on different assumptions. The first model has been derived by the homogenization of the mesoscopic structure with the double-porosity medium represented by the Biot model with large contrasts in the permeability coefficient...

This work focuses on the improvement of the impact protection of a motorcyclist protective equipment under the influence of higher temperature. A created composite shell was added to a foam shoulder protector SAS-TEC SCL-2. A drop test was carried out for protector itself and ...

The breakdown phenomena and determination of dielectric strength is one of the essential topics in the field of insulating materials for high-voltage applications. In the case of basic thermosetting plastics, including epoxy resins, dielectric breakdown analysis has been performed many times,...

This article deals with the issue of selected polymer composites consisting of a thermoset matrix and reinforcing glass fibers. These composites are designed for high voltage applications as an electrical insulating material with high mechanical durability. Three composites with a significantly&#...

Integrated dual boundary element method – finite element method are applied. As well, the welding procedure simulation and the successive crack propagation evaluation are coupled. For AA 2024-T3 aluminium rolled sheets welded, the forging action of the tool shoulder is enhanced by impos...

This paper researches influence of the temperature on a foam, which is used in motorcycle protective equipment. The impact test was carried out on samples, which were cut from the center part of the protector that is suitable to protect shoulder, elbow and knee areas. Its...

We consider acoustic wave propagation in periodic scaffolds perfused by Newtonian or inviscid fluids. To analyze the wave dispersion, two approaches are examined: the periodic homogenization (PH) and the Floquet-Bloch wave decomposition (FB). The dispersion analysis using the FB approach captures...

This work is focused on the experimental and analytical determination of the load-carrying capability of the inserts potted in the sandwich structure with honeycomb core. The pull-out test of the sandwich structure specimens with two types of inserts were performed and load-carrying cap...