Abstract
Some aspects of the relationship between two engineering disciplines, materials science and structural mechanics, are considered. Core structures are discussed from representative cells and volumes of composites reinforced with long and short fibers to spatial structures with a regular structure. This article considers various approaches to prediction and estimations of the minimum mass of core systems at the initial stages of design. The main attention is paid to the study of the possibility of applying the dimensionless criterion of force perfection of a structure to the evaluation of the efficiency of materials with a heterogeneous structure. For this purpose, a computational experiment is set and described in detail, during which, on the basis of the simplest cubic Bravais lattice, truss structures of increasing complexity are generated sequentially and their properties are analyzed using structural mechanics methods. It is shown that truss modeling has a certain potential for predicting a number of mechanical characteristics of heterogeneous materials.
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