Strategy for hybrid connection of porous strut and triply periodic minimal surface lattice structures.

Hybrid TPMS sheet and strut lattice structures achieve up to 84-fold variation in stiffness, enabling multifunctional performance for complex applications.

• Why it matters: Developing porous lattice structures with integrated multifunctionality is crucial for advanced engineering applications, but effective connections between different topology types remain challenging.
• What they did: A design strategy using twinned unit cells was implemented to hybridize TPMS sheet and strut lattice structures, with tunable transition substructures that modulate stiffness from 0.4 to 5 times the original.
• The result: Prototypes demonstrate successful hybridization with geometric and mechanical compatibility, allowing tailored properties for demanding interfaces like bone-tendon connections.