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Re-entrant honeycomb and isogrid lattices in planar and curved surfaces: effective mechanical compressive properties
(Instituto Tecnológico y de Estudios Superiores de Monterrey, 2022) Mendoza Leal, Gabriela Guadalupe; Urbina Coronado, Pedro Daniel; emimmayorquin; Román Flores, Armando; Escuela de Ingeniería y Ciencias; Campus Monterrey; Cuan Urquizo, Enrique
This work proposes the analysis of the deformation and failure mechanisms of metamaterials in planar and cylindrical lattices with two topologies. Metamaterial research usually focuses on their design, manufacturing process, and characterization, but it has a noticeable window of opportunity for non-planar external geometries. Thanks to the development of additive manufacturing (AM), many possibilities have opened with respect to the fabrication of these metamaterials. The importance of studying non-planar geometries derives from the fact that most experimental analyses cover only conventional shapes such as cubes or planes. Non-planar structures, such as cylindrical and curved lattices, provide a more realistic scenario of metamaterial applications, and now that there is a way to fabricate them, it’s possible to further research the design of these structures and their characterization. Mechanical tests are proposed to analyze the stiffness and compression behavior of the structures. By subjecting the planar and cylindrical structures to compressive forces it’s possible to study how the topologies and their parameters have an effect on the energy absorption. By normalizing the results, it will be possible to compare them.

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