Deleted Journal, Год журнала: 2024, Номер unknown, С. 200186 - 200186
Опубликована: Дек. 1, 2024
Язык: Английский
Materials Science and Engineering A, Год журнала: 2024, Номер 911, С. 146918 - 146918
Опубликована: Июль 4, 2024
Metal hollow-strut lattices manipulate the strut and node sections to achieve higher strength. Although these metamaterials have recently surpassed structural efficiency of conventional solid-strut comparable density topology, they often observe localised yielding fragmentation through nodes that limit their efficiency. To quantify effect this failure develop mitigating strategies, we integrated solid hollow in singular Ti–6Al–4V simple cubic hybrid-strut for a deployable relative range 15–30%. Fabricated laser powder bed fusion are stronger (32%), stiffer (15%), tougher (65%) than equivalent density. Interestingly, with beams can transition from bending-dominated stretch-dominated deformation response increasing density, while only observed uniformly response. The combination lattice establishes yet effective strategy enhance control without or manipulating unit cell topology.
Язык: Английский
Процитировано
10
Metals, Год журнала: 2025, Номер 15(4), С. 464 - 464
Опубликована: Апрель 20, 2025
Lattice materials demonstrate exceptional advantages in lightweight design applications due to their low mass density, high specific strength, and customizable topology. Inspired by the hollow vascular bundle structure of bamboo, this study develops four bio-inspired lattice configurations through two key modifications conventional body-centered cubic (BCC) structures: Z-axis (loading direction) strut reinforcement hollowing. The specimens were fabricated using AlSi10Mg powder via selective laser melting (SLM) technology, followed systematic evaluation compressive properties energy absorption characteristics. experimental results reveal that synergistic combination Z-strut significantly enhances both resistance capacity. optimized BCC-5ZH configuration (5 Z-struts with full hollowing) achieves remarkable performance metrics at 0.5 g/cm3 density: yield strength (16.78 MPa), (27.91 volumetric (10.4 MJ/m3). These values represent 236.9%, 283.4%, 239.3% enhancements, respectively, compared reference BCC lattices an equivalent density. integration induces homogeneous stiffness distribution throughout architecture, while hollowing increases effective moment inertia. This structural evolution a failure mode transition from single shear band deformation dual X-shaped propagation, resulting enhanced sequence regulation within system.
Язык: Английский
Процитировано
1
Applied Sciences, Год журнала: 2025, Номер 15(4), С. 2221 - 2221
Опубликована: Фев. 19, 2025
The manufacturing sector is a major contributor to global energy consumption and greenhouse gas emissions, positioning sustainability as critical priority. Aluminum, valued for its lightweight recyclable properties, plays vital role in advancing energy-efficient solutions across transportation aerospace industries. processing of aluminum alloys through laser-based powder bed fusion metals (PBF-LB/M), cutting-edge additive technology, enhances by optimizing material usage enabling innovative designs. Based on the published literature, present study analyzed ecological impacts PBF-LB/M life cycle assessment, circular economy principles, eco-design strategies, identifying opportunities reduce environmental footprints. also stated challenges, such high demands process scalability limitations. Potential sustainable were discussed starting from production techniques, well optimized processes post-processing strategies. By adopting an interdisciplinary approach, this research highlighted pivotal PBFed achieving goals. It provided actionable insights drive innovation resilience industrial applications, offering roadmap balancing stewardship with high-performance standards.
Язык: Английский
Процитировано
1
Advanced Materials, Год журнала: 2024, Номер unknown
Опубликована: Окт. 17, 2024
Abstract Metal thin‐walled structures are ubiquitous in various industrial applications and fabricating them through additive manufacturing (AM) enables intricate thin‐wall geometries with no assembly required. However, additively manufactured metal thin walls suffer from increased heat accumulation reduced structural stability, making it difficult to print geometrically accurate minimal distortion defects. Thin‐walled also experience different thermal histories solidification conditions compared bulk structures, leading drastic differences the microstructure mechanical properties. In this review article, AM processing of will be introduced. An in‐depth discussion on design strategies presented regarding restrictions imposed by technology, integration lightweight novel ideation topology optimization. The effects that wall has geometrical accuracy, microstructure, properties then elucidated. utilization for across industries summarized. Finally, article close some perspectives future work structures.
Язык: Английский
Процитировано
4
Thin-Walled Structures, Год журнала: 2024, Номер unknown, С. 112632 - 112632
Опубликована: Окт. 1, 2024
Язык: Английский
Процитировано
3
Additive manufacturing, Год журнала: 2025, Номер unknown, С. 104664 - 104664
Опубликована: Янв. 1, 2025
Язык: Английский
Процитировано
0
Deleted Journal, Год журнала: 2025, Номер 2(1)
Опубликована: Март 30, 2025
The increasing demand for lightweight, high-strength, and multifunctional materials is driving the rapid development of complex metal lattice metamaterials through additive manufacturing (AM). However, fabrication challenges often hinder their full design potential. This study presents an easy-to-apply finite element (FE)-based framework, governed by six fundamental equations, offering a holistic approach that meets manufacturability requirements laser powder bed fusion AM. By integrating global natural coordinate systems with shape functions, method enables precise node positioning accurate strut inclination angle calculations, essential determining inclined diameter using established model. Demonstrated complex, bespoke Ti–6Al–4V lattices, framework achieves high design-fabrication consistency, yielding robust structures desirable mechanical properties. versatile efficiently designs lattices arbitrary boundary conditions, advancing design, fabrication, performance in synchronized manner.
Язык: Английский
Процитировано
0
Thin-Walled Structures, Год журнала: 2025, Номер unknown, С. 113274 - 113274
Опубликована: Апрель 1, 2025
Язык: Английский
Процитировано
0
Progress in Additive Manufacturing, Год журнала: 2024, Номер unknown
Опубликована: Окт. 1, 2024
Язык: Английский
Процитировано
1
Deleted Journal, Год журнала: 2024, Номер unknown, С. 200186 - 200186
Опубликована: Дек. 1, 2024
Язык: Английский
Процитировано
0