Evaluation of Closed and Open-cell Structural Lattices with Finite Element Analysis

Abstract

Four lattice structures based on well-known crystal structures were evaluated in this study using the finite element method. Simple cubic, face-centered cubic, body-centered cubic, and diamond structural alignments were used to build up lattices from the body volume. Modern-day implant development trends are shifting towards additive manufacturing technologies, which have the advantage of creating structures that can improve the biological stability of implants that have integrated scaffolds. Such scaffolds can be trabecular structures that mimic bone tissue and facilitate tissue penetration into the porous parts of the implant. The final purpose of our study is to create an implant system that promotes the process of osseointegration. Evaluations have been carried out using finite element analysis.

Correlation Modeling between Morphology and Compression Behavior of Closed-Cell Al Foams Based on X-ray Computed Tomography Observations

“…Numerical computation is, therefore, the tool most used for studying the behavior of cellular structures by representative modeling. This is true not only for geometries based on polyhedra [19], but also in the case of models that use basic cell shapes (circular, elliptic, rectangular, square) [20], or combinations of them [21], and models obtained by positioning spherical cells in cubic units, according to the arrangements that characterize the well-known crystal structures [22].…”