Abstract
The thesis studies the geometric properties and the static tensile behavior of a lightened structure made by Additive Manufacturing. The periodic structure of interest also called unit cell has a cubic morphology with a central body (BCC), it is investigated in the hypothesis of elasticity and in particular by applying the Euler-Bernoulli theory.
Some simplifications of the cell geometry representation have been introduced to simplify the analytic representation and finite element modeling of this structure. These simplifications allow a careful management of the computational cost of simulation.
As this is a preliminary study, the presence of joints, surface roughness and deviations from the ideal geometry of the beams due to the production process will be neglected. The analyzes will be carried out in the hypothesis of an infinite number of cells, thus neglecting the onset of edge effects.
In the literature, there are several studies that address this issue by considering specific elementary cells; in the present study instead an analytical relationship of general validity is sought for any BCC as the size of the cell itself and its relative density vary. A good agreement emerges from the comparison of the analytical results and numerical simulations.
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