title: Finite element modelling approaches for well-ordered porous metallic materials for orthopaedic applications: cost effectiveness and geometrical considerations.
abstract: The mechanical properties of well-ordered porous materials are related to their geometrical parameters at the mesoscale. Finite element (FE) analysis is a powerful tool to design well-ordered porous materials by analysing the mechanical behaviour. However, FE models are often computationally expensive. This article aims to develop a cost-effective FE model to simulate well-ordered porous metallic materials for orthopaedic applications. Solid and beam FE modelling approaches are compared, using finite size and infinite media models considering cubic unit cell geometry. The model is then applied to compare two unit cell geometries: cubic and diamond. Models having finite size provide similar results than the infinite media model approach for large sample sizes. In addition, these finite size models also capture the influence of the boundary conditions on the mechanical response for small sample sizes. The beam FE modelling approach showed little computational cost and similar results to the solid FE modelling approach. Diamond unit cell geometry appeared to be more suitable for orthopaedic applications than the cubic unit cell geometry.
authors.affiliation: a Laboratoire de Recherche en Imagerie et Orthopédie, Département de Génie de la Production Automatisée , École de Technologie Supérieure , Montréal , Canada.
authors.forename: Fernando José
authors.initials: FJ
authors.lastname: Quevedo González
authors.affiliation: a Laboratoire de Recherche en Imagerie et Orthopédie, Département de Génie de la Production Automatisée , École de Technologie Supérieure , Montréal , Canada.
authors.forename: Natalia
authors.initials: N
authors.lastname: Nuño
mesh_terms: D001696:Biomechanical Phenomena; D001842:Bone and Bones / Q000502:physiology; D003362:Cost-Benefit Analysis; D020342:Finite Element Analysis; D006801:Humans; D008670:Metals / Q000191:economics*; D008962:Models, Theoretical; D009985:Orthopedics / Q000191:economics*; D016062:Porosity; D013314:Stress, Mechanical
chemical_list: D008670:Metals
keywords: Well-ordered porous materials; cellular materials; cost effectiveness; finite element; mechanical properties; orthopaedic applications