Mechanical response of porous materials under dynamic loads
Abstract
In the present work, a metallographic analysis of the structure of Alporas foam is performed, for commercial samples, as well as for samples that were produced by similar methods in the laboratory. The purpose of the metallographic analysis was to characterize the structure, as well as to determine the mechanisms that take place during static and impact loads. It is also investigated experimentally whether the machining processes (milling and wire Electro-Discharge Machining) affect the mechanical properties of porous aluminum, i.e., quasi-static and impact loads. In addition, applying macro- and micro-structural characterization of the surfaces, information was obtained about the complex mechanism that takes place during these machining processes. For a deeper study and understanding of the deformation mechanisms, mainly on a macroscopic scale, it was necessary to simulate the loading of the foam samples through the Finite Elements Method (FEM). In the context of the present work, an ...
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