Metal functionally graded gyroids: additive manufacturing, mechanical properties, and simulation

Abstract Functionally graded materials raise considerable interest in the biomedical research. In particular, gyroid structures are suitable for bone tissue engineering applications, allowing to emulate porosity of inner part bone. this frame, mechanical properties 17–4 PH steel gyroids made by additive manufacturing have been investigated. Three design methods implemented, i.e., thickness graded, size and uniform, address lack knowledge area stainless-steel scaffolds aiming at providing a map properties. Compressive absorbed energy absorption efficiency found aforementioned methods. Furthermore, defects collapse behavior analyzed: imperfections detected thin-walled areas samples. Nevertheless, under given conditions, samples comparable those uniform ones, exhibiting controlled layer-by-layer mechanism consequent weight reduction. The Gibson-Ashby models calibration coefficients compared with other research works. A FEM-based numerical model has proposed reproduce mentioned finding critical issues representation defects. resulting Gibson Ashby good agreement literature reveal bending-dominating sustaining larger strains than case, giving ground high applications. FEM analyses reliable tool further investigate metal functionally field.