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

International Journal of Mechanical Sciences, Journal Year: 2025, Volume and Issue: unknown, P. 110123 - 110123

Published: March 1, 2025

Language: Английский

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

Thin-Walled Structures, Journal Year: 2025, Volume and Issue: 210, P. 113062 - 113062

Published: Feb. 7, 2025

Language: Английский

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

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

Published: April 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.

Language: Английский

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Energy Dissipation Mechanisms in Topologically Interlocking Structures

International Journal of Mechanical Sciences, Journal Year: 2025, Volume and Issue: unknown, P. 110317 - 110317

Published: May 1, 2025

Language: Английский

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