Flexible Impact-Resistant Composites with Bioinspired Three-Dimensional Solid–Liquid Lattice Designs

• DOI: 10.1021/acsami.3c02761
• Publication Date: 2023-04-26T12:27:31Z
• Authors: Zhanyu Wang; Renheng Bo; Haoran Bai; Shunze Cao; Shuheng Wang; Jiahui Chang; Yu Lan; Ying Li; Yihui Zhang
• Keywords: Lattice (music)

The ubiquitous solid-liquid systems in nature usually present an interesting mechanical property, the rate-dependent stiffness, which could be exploited for impact protection flexible systems. Herein, a typical natural system, durian peel, has been systematically characterized and studied, showing dual-phase cellular structure. A bioinspired design of impact-resistant composites is then proposed by combining 3D lattices shear thickening fluids. resulting offer, simultaneously, low moduli (e.g., 71.9 kPa, lower than those many reported soft composites) under quasi-static conditions excellent energy absorption 425.4 kJ/m3, close to metallic glass-based lattices) upon dynamic impact. Numerical simulations based on finite element analyses were carried out understand enhanced buffering developed composites, unveiling lattice-guided fluid-structure interaction mechanism. Such biomimetic lattice-based hold promising potential development next-generation that can used wearable electronics robotic