In-plane energy absorption capacity of a novel locally enhanced re-entrant honeycomb metamaterial

Thin-Walled Structures, Год журнала: 2025, Номер 210, С. 113062 - 113062

Опубликована: Фев. 7, 2025

Язык: Английский

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Generative deep learning for designing irregular metamaterials with programmable nonlinear mechanical responses

International Journal of Mechanical Sciences, Год журнала: 2025, Номер unknown, С. 110123 - 110123

Опубликована: Март 1, 2025

Язык: Английский

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Additive Manufacturing of Continuous Carbon Fiber Honeycomb Structures with Tunable Poisson's Ratio

Advanced Engineering Materials, Год журнала: 2025, Номер unknown

Опубликована: Апрель 8, 2025

This study investigates the mechanical performance of continuous carbon fiber reinforced composite (CCFRC) honeycomb structures with varying Poisson's ratios, fabricated using fused filament fabrication (FFF) technique. Three designs—star shaped (SS), concave hexagonal (CHH), and zero ratio (ZPR)—are evaluated through static compression experiments finite element simulations. The results show that SS a negative exhibits higher yield strength, faster densification, greater total energy absorption. In contrast, positive (PPR) demonstrates larger specific absorption, while ZPR are more stable in deformation. Notably, for same ratio, outperforms CHH terms mass increases 98.58% 101%, respectively. Scanning electron microscopy (SEM) analysis damage mechanisms during highlights influence unit cell design printing path planning on properties CCFRC components. These findings suggest behavior is highly dependent print planning, tensile failure typically leading to brittle fracture.

Язык: Английский

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Energy Dissipation Mechanisms in Topologically Interlocking Structures

International Journal of Mechanical Sciences, Год журнала: 2025, Номер unknown, С. 110317 - 110317

Опубликована: Май 1, 2025

Язык: Английский

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