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Nature-occurring structures exhibiting unique topological features such ascomplex and gradient porosity has been the basis to create new materials and/orstructures. Most studies have been focused on complex periodic porousstructures but gradient porous ones have not been yet fully investigated forstable structural designs. In this work, we have proposed and tested a newapproach to create cellular griding structures, in which the mass densityvaries from the center to the borders, i.e, a radial gradient. To create thesenew structures we exploited the topology of two carbon-based families withdifferent pore sizes, the schwarzites, and schwarzynes. We created fullyatomistic models that were translated into macroscale ones that were then 3Dprinted. The mechanical behavior of the gradient structures was investigated bymolecular dynamics simulations and mechanical compression tests of the printedmodels. Our results show that their mechanical response can be engineered (forinstance, in terms of energy absorption, ballistic performance, etc.) and canoutperform their corresponding density uniform structures.

Schwarzite and schwarzynes based load-bear resistant radial cellular griding-based 3D printed structures