Characterisation of the cyclic dynamic load behaviour of injection molded integral foam structures

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The aim of the project is to develop basic insights on the influence of morphology on the cyclic dynamic load behaviour of foam injection molded thermoplastics. Cyclic dynamic tensile and bending tests should be carried out on structural foams with process-related compact skin layers and integrally foamed core areas. By the help of new process technology (precision mold-opening), test specimens with different structural characteristics (foaming ratio, cell size, cell density, cell distance, thickness of the compact skin layer, etc.) should be produced specifically for this purpose. To quantify the deformation and failure behaviour, optical measurement technology (ARAMIS, GOM + mobile optical light microscopy) should also be used during the mechanical tests. The results should be correlated with the structure in order to gain fundamental insights into the relationship between deformation and fracture mechanisms and structural parameters.