Mechanical characteristics of bionic pseudostem-like multilayer weft-knitted spacer fabric for personal protection DOI Creative Commons
Yuqing Huang, Zhijia Dong, Chao‐Yu Chen

et al.

Journal of Industrial Textiles, Journal Year: 2024, Volume and Issue: 54

Published: Jan. 1, 2024

Inspired by the multi-layered structure found in banana pseudostem, an innovative bionic pseudostem-like multilayer weft-knitted spacer fabric (ML-WKSF) was proposed for development of high-performance and mass-produced personal protective materials. ML-WKSFs with different filament diameters (0.15, 0.175, 0.2 mm) were produced on a computerized flat knitting machine, incorporating thermoplastic filaments during process to enhance structural supporting filaments. In both compression fatigue tests, ML-WKSF 0.15 mm exhibited superior compressive resistance due more compact resulting from smaller diameter monofilaments, which facilitated uniform stress distribution. Additionally, composite fabrics prepared using shear thickening fluid (STF) SiO 2 mass fraction 70%, mechanical property tests conducted. The displayed similar trends pure tests. Differently, integration STF monofilaments led increase load bearing capacity. low-velocity impact larger resulted better as force locally dispersed. demonstrated excellent energy absorption, achieving absorption efficiency 69% at initial 40 J.

Language: Английский

A rate-dependent shape memory polymer composite for self-folding 2D-to-3D structural transition with improved impact resistance DOI
Wenhui Wang, Shuai Liu, Jianyu Zhou

et al.

Composites Part B Engineering, Journal Year: 2025, Volume and Issue: unknown, P. 112291 - 112291

Published: Feb. 1, 2025

Language: Английский

Citations

1
A Bioinspired Design of Protective Al2O3/Polyurethane Hierarchical Composite Film Through Layer‐By‐Layer Deposition DOI
Jiaming Zhong,

Zhi‐Xiong Wen,

Yibo Wu

et al.

Advanced Science, Journal Year: 2024, Volume and Issue: 11(28)

Published: May 20, 2024

Abstract Structural materials such as ceramics, metals, and carbon fiber‐reinforced plastics (CFRP) are frequently threatened by large compressive impact forces. Energy absorption layers, i.e., polyurethane silicone foams with excellent damping properties, applied on the surfaces of different substrates to absorb energy. However, amount energy dissipation penetration resistance limited in commercial foams. Herein, a distinctive nacre‐like architecture design strategy is proposed integrating hard porous ceramic frameworks flexible buffers improve resistance. Experimental investigations reveal bioinspired designs exhibit optimized hardness, strength, modulus compared that polyurethane. Due multiscale mechanisms, resulting normalized absorbed (≈8.557 MJ m −3 ) ≈20 times higher than under 50% quasi‐static compression. The composites provide superior protection for structural (CFRP, glass, steel), surpassing films loadings. It shown CFRP coated designed can withstand more ten loadings (in 10 J) without obvious damage, which otherwise delaminates after single impact. This biomimetic holds potential offer valuable insights development lightweight, energy‐absorbent, impact‐resistant materials.

Language: Английский

Citations

4
Hybrid 3D Printing of Continuous Carbon Fiber Magneto‐Electric Composites for Load Real‐Time Sensing and Energy Absorption DOI
Xiaojun Chen, Peng Chen, Jun Shi

et al.

Advanced Functional Materials, Journal Year: 2025, Volume and Issue: unknown

Published: April 18, 2025

Abstract Continuous carbon fiber (CCF) holds significant promise for many key applications owing to its high strength, modulus, lightweight, and chemical stability. However, in most research applications, CCF is primarily used as a load‐bearing structural component, conductive advantage has not been fully exploited. To further harness the excellent conductivity of expand their potential this study employs hybrid 3D printing method fabricate series magneto‐electric functional composites with triply periodic minimal surface (TPMS) porous structures. Based on design strategy TPMS structures, work demonstrates dynamic impact energy absorption composites, achieving an efficiency greater than 49%. By establishing correlation between loads output electrical signals, load sensing achieved, demonstrating strong linear relationship R 2 value up 0.99. The concept applied fabrication ship hull absorb wave convert it signal. printed capable water wave, peak current 10 µA. methods insights presented offer expanding CCF.

Language: Английский

Citations

0
Mechanical characteristics of bionic pseudostem-like multilayer weft-knitted spacer fabric for personal protection DOI Creative Commons
Yuqing Huang, Zhijia Dong, Chao‐Yu Chen

et al.

Journal of Industrial Textiles, Journal Year: 2024, Volume and Issue: 54

Published: Jan. 1, 2024

Inspired by the multi-layered structure found in banana pseudostem, an innovative bionic pseudostem-like multilayer weft-knitted spacer fabric (ML-WKSF) was proposed for development of high-performance and mass-produced personal protective materials. ML-WKSFs with different filament diameters (0.15, 0.175, 0.2 mm) were produced on a computerized flat knitting machine, incorporating thermoplastic filaments during process to enhance structural supporting filaments. In both compression fatigue tests, ML-WKSF 0.15 mm exhibited superior compressive resistance due more compact resulting from smaller diameter monofilaments, which facilitated uniform stress distribution. Additionally, composite fabrics prepared using shear thickening fluid (STF) SiO 2 mass fraction 70%, mechanical property tests conducted. The displayed similar trends pure tests. Differently, integration STF monofilaments led increase load bearing capacity. low-velocity impact larger resulted better as force locally dispersed. demonstrated excellent energy absorption, achieving absorption efficiency 69% at initial 40 J.

Language: Английский

Citations

0