Integrated manufacturing of REciclable multi-material COmposites for the TRANSport sector

Mechanical metamaterials designed using triply periodic minimal surfaces (TPMS) are notable for their mathematically defined topologies that yield specific and impressive mechanical properties. Recently, the use of fiber?reinforced composite material structures in fields such as mechanical engineering and aerospace technology has significantly increased. However, the performance of fiber?reinforced mechanical metamaterials based on TPMS has not yet been reported. Therefore, in this study, we investigated the changes in the vibration isolation and energy absorption performance of TPMS mechanical metamaterials after fiber reinforcement. We used thermoplastic polyurethane (TPU) as the matrix material for the structure and T300 carbon fibers as the reinforcing phase material. First, we obtained the equivalent material parameters of TPMS mechanical metamaterials reinforced with carbon fibers using theoretical and finite element methods. Second, we analyzed the quasi?static compression characteristics of mechanical metamaterials. Finally, we examined the band structure and energy absorption properties of the TPMS structures. The numerical simulation results showed that fiber reinforcement can significantly enhance the stiffness and impact resistance of TPMS mechanical metamaterials. Our study provides theoretical guidance for the design and manufacture of mechanical metamaterials and their applications in future aircraft.This article is protected by copyright. All rights reserved.

» Author: Hongqing Dai, Heman Xiao, Zhenchao Qiu, Ning Dai, Laishui Zhou

» Publication Date: 19/06/2024

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