Examinando por Autor "Cadavid, Esteban"

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    Ítem
    Geometry simplification for modeling of porous materials
    (2015) Ruíz, Óscar E.; Cadavid, Esteban; Osorno, María C.; Uribe, David; Steeb, Holger; Universidad EAFIT. Departamento de Ingeniería Mecánica; Laboratorio CAD/CAM/CAE
    Porous and lattice materials have become everpresent in applications such as medicine, aerospace, design, manufacturing, art, entertainment, robotics, material handling, etc -- However, their application is impeded by the uncertainty of their mechanical properties (elongation, torsion, compression moduli, etc.) -- Computational Mechanics of poorus materials is also hindered by the massive geometric data sets that they entail, if their full geometric representations are used -- In response to these limitations, this article presents a truss simplification of a porous material --This simplified representation is usable in computer simulations, instead of the full triangle- or freeform-based Boundary Representations (B-Rep), which produce intractable problems -- This article presents the simplification methodology, along with results of estimation of the stress - strain response of porous material (in this case, Aluminum) -- Our methodology presents itself as a possible alternative in contrast with impossible processing when full data is used -- Follow up work is needed in using the truss methodology for calculating macro-scaleequivalent Young or Poisson moduli, with applications on mechanical design