Abstract Scope |
Triply periodic minimal surfaces (TPMS) structures widely found in nature possess superior properties and functionalities. Inspired by TPMS structures, novel interpenetrating phase composites (IPCs) are designed and fabricated from a wide range of materials. In this study, we investigate experimentally and computationally the compressive behavior of 3D-architectured two-phase IPCs and utilize TPMS structures as the second-phase reinforcements to enhance mechanical performances. To clarify the structure-property relations of the TPMS IPCs, systematic parametric studies on different relative densities, rigidities of solid constituents, and different types of TPMS are conducted. By applying 3D printing, multi-structural observations, and finite element simulation, compressive mechanical properties and stress distribution of Gyroid, Diamond, FRD, FKS, and IWP IPCs are evaluated and discussed. With the analytical results, the most effective TPMS IPCs in enhancing damage tolerance and mechanical performance have been determined, which have great potential to be applied in the defense, aerospace, automotive, and engineering fields. |