Mechanical Properties and Energy-Absorption Capability of a 3D-Printed TPMS Sandwich Lattice Model for Meta-Functional Composite Bridge Bearing Applications

This paper reports on a proposed novel 3D-printed sandwich lattice model using triply periodic minimal surface (TPMS) structure for meta-functional composite bridge bearings (MFCBBs). It could be implemented in systems, including buildings and railway bridges. A TMPS offers high performance to density ratio under different loading. Compared typical elastomeric with any reinforcements, the use of TPMS lattices potentially lead substantial reduction both manufacturing cost weight, but also significant increase recyclability their better mechanical properties (compressive, crushing, energy absorption, vibration, sound attenuation). shows predictions from numerical study performed examine behaviour two loading conditions bearing applications. The validation modelling is compared experimental results ensure possibility designing fabricating practical use. In general, compressive load–displacement unit cell are excellent agreement within elastic limit region. Moreover, its failure mode applications has been identified as an elastic–plastic hysteretic uniaxial compression combined compression–shear loading, respectively.