Design and Mechanical Characterization of an S-Based TPMS Hollow Isotropic Cellular Structure

Cellular structures are regarded as excellent candidates for lightweight-design, load-bearing, and energy-absorbing applications. In this paper, a novel S-based TPMS hollow isotropic cellular structure is proposed with both superior load-bearing performances. The designed Boolean operation based on the Fischer-Koch (S) implicit triply periodic minimal surfaces (TPMS) different level parameters. anisotropy effective elasticity properties of evaluated numerical homogenization method. finite element method further conducted to analyze static mechanical performance considering size effect. compression experiments finally carried out reveal energy-absorption characteristics. Numerical results Zener ratio proved that tends be isotropic, even better than sheet-based Gyroid TPMS. Compared solid counterpart, has higher elastic modulus, energy absorption