Triply Periodic Minimal Surface (TPMS) Metamaterial Exhibiting Simultaneously Superior Acoustic and Mechanical Energy Absorption Performance

The advancement of 3D printing has created new opportunities for producing innovative materials with distinctive features, such as microlattice metamaterials. These materials might be more effective than conventional materials. Particularly, there is a demand for materials that are lightweight, resilient, and effectively sound transmission loss, making them beneficial for real-world engineering applications. However, there has not been much study on metamaterials that can perform both of these functions at once. In this study, we propose TPMS (Triply Periodic Minimal Surface) metamaterials that perform exceptionally well at absorbing mechanical and acoustic energy. In which a novel idea for the particular structural design and material choice of metamaterials with dual sound transmission loss and mechanical energy absorption capabilities is put forth. In order to understand more about the TPMS structure’s performance and variations in mechanical energy absorption as a function of strain rate, it is also investigated how it behaves under various strain rates.