Mechanical Performance of a Steel-Polymer Biphasic Lattice Structure

Interpenetrating Phase Composites (IPCs) with biomimetic properties are promising materials for strengthening orthopaedic implants while also increasing their biocompatibility. Thanks to additive manufacturing techniques, lattice structures can be employed to develop biomaterials with controlled architectures, enabling the replication of human bone structures and offering advantages in terms of strength-to-weight ratio. This study investigates the behaviour of a bi-material steel-polymer lattice structure, observing that the epoxy resin increases the mechanical strength of gyroid, leaving the lightweight properties unchanged. Moreover, an equivalent constitutive model was calibrated, and a homogenization procedure based on the Representative Volume Element theory was applied. The effect on mechanical strength due to the 316L powder dispersed within the epoxy resin was investigated as well.

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Periodical:

Solid State Phenomena (Volume 390)

Pages:

181-188

DOI:

https://doi.org/10.4028/p-b48XNq

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Online since:

April 2026

Authors:

Edoardo Mancini*, Anastasia Ciccarella, Andrea Di Giuliano, Lino Micarelli, Giuseppe Dell'Avvocato, Katia Gallucci

Keywords:

Biphasic Lattice Structure, Gyroid, Homogenization, Polymer

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Creative Commons CC BY 4.0

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* - Corresponding Author

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