Abstract
Belonging to cellular solids subclasses, lattice structures have recently obtained much interest in the lightweight engineering sector thanks to the potential of their specific structural properties. This investigation explores the mechanical properties of lattice cells selected for their energy absorption capacity while considering strut orientation angle, vertical reinforcement, combination of cells and aspect ratio as geometrical and topological parameters. Truss lattices are examined given their excellent results from the point of view of energy absorption behavior. While non-linear static analyses are used to determine both volumetric and specific energy absorption, dynamic calculations are employed to identify the densification point and assess on the crashing load efficiency of the considered cells. This contribution aims at providing a deeper understanding of the mechanical behavior of lattice structures in order to provide construction guidelines that can be employed in rapid prototyping and design of lightweight structures.
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