Investigation of loaded porous structures inside a computed tomography.

Abstract

Development of modern technologies, creation of different types of materials, increases the quality of products and structures, while reducing the weight, dimensions and increases the strength properties of products. Despite the numerous analytical and experimental methods of describing mechanical properties, this task is still relevant. The relevance is achieved by creating more and more advanced materials such as composite metamaterials, high-temperature and superhard materials, materials created using additive technologies and many others. Modern methods of analyzing mechanical properties of such materials are based on surface analysis, i.e. they assume an ideal case of production of such structures, which is quite difficult to achieve in practice. During production, delaminations, non-glueing between layers, formation of microcracks and other similar defects are possible, which can manifest themselves only during operation. In turn, classical in-situ experiments cannot fully determine the properties of the material at a certain specified geometry. The main limitation is the heterogeneity and unequal internal structure of each individual specimen, which leads to a significant variation in the resulting readings. This study is aimed at the experimental investigation of closed porous structures using a computed tomography scanner. The main feature of this study is the author's method of loading the samples inside the CT scanner. All samples are produced by additive technologies, namely by FDM printing from PLA plastic.

Speaker

Nikita Kharin
Kazan Federal University
Russia

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