Elastic wave manipulation via functional incorporation of air-solid phases in hybrid TPMS

The TPMS metamaterial show extraordinary potential in shock absorption and noise reduction duo to the intricate porous configurations. In this study, a smooth-transition hybrid TPMS with multi-functional characteristics is designed to improve the performance of conventional hybrid materials, where multiple materials are stacked simply. The smooth hybrid intervals of proposed hybrid TPMS provide desirable transmission and reflection of stress wave conforming to the impedance characteristics of each component. Furthermore, the air domains in TPMS structure expand the high-frequency acoustic isolation properties. The broadening and customizing of isolation frequency band can be realized in the hybridizations. The mechanics-acoustics coupling property of proposed hybrid TPMS may have significant implications for the development of novel shock ab-sorption and noise reduction materials.

Automated summary

In this study, a smooth-transition hybrid TPMS with multi-functional characteristics is designed to improve the performance of conventional hybrid materials in shock absorption and noise reduction. The smooth hybrid intervals provide desirable transmission and reflection of stress wave conforming to the impedance characteristics of each component. Furthermore, the air domains in TPMS structure expand the high-frequency acoustic isolation properties. The mechanics-acoustics coupling property of proposed hybrid TPMS may have significant implications for the development of novel shock absorption and noise reduction materials.