Mechanical response surfaces of a periodic porous biomaterial for orthopaedic implants

Abstract eng:
A previous study on high strength porous biomaterials proposed a methodology to systematically elucidate the interplay between their morphological parameters and mechanobiological properties. This work extends that method to investigate the impact of manufacturing errors on the mechanical properties of Ti-6Al-4V Octet lattice for use as load-bearing orthopaedic material. Via a combined approach of experiments and simulations, we generate response surfaces that illustrate the mechanical properties as a function of the geometric parameters defining the unit cell of the Octet cell. The results reveal the impact of manufacturing imperfections on the compressive elastic modulus of as-manufactured samples when compared to their as-designed counterpart. This study contributes to forge essential tools to systematically design porous orthopaedic implants.

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