European Journal of Mechanics - A/Solids, Год журнала: 2024, Номер unknown, С. 105502 - 105502
Опубликована: Ноя. 1, 2024
Язык: Английский
Journal of Applied Physics, Год журнала: 2025, Номер 137(5)
Опубликована: Фев. 5, 2025
The interface and its structure have a significant impact on the mechanical properties of magnesium (Mg) alloys. However, role in solid-state amorphization process Mg alloys is still unclear. Here, effect four structures, namely, basal/prismatic (BP), stacking fault (SF), twin boundary (TB), high-angle grain (HAGB) (SSA) amorphous/crystalline dual-phase investigated using molecular dynamics simulation. results indicate that introduction all interfaces increases SSA degree For models, varies from high to low order as BP model, TB SF HAGB which means atomic diffusion has dependence energy. show plays two roles process: first, it changes amorphous–crystalline contact with second, more open itself fast channel for diffusion, both are beneficial
Язык: Английский
Процитировано
0
International Journal of Impact Engineering, Год журнала: 2025, Номер unknown, С. 105284 - 105284
Опубликована: Фев. 1, 2025
Язык: Английский
Процитировано
0
International Journal of Mechanical Sciences, Год журнала: 2025, Номер unknown, С. 110338 - 110338
Опубликована: Май 1, 2025
Язык: Английский
Процитировано
0
Computer Methods in Applied Mechanics and Engineering, Год журнала: 2025, Номер 442, С. 118063 - 118063
Опубликована: Май 2, 2025
Язык: Английский
Процитировано
0
Buildings, Год журнала: 2025, Номер 15(9), С. 1547 - 1547
Опубликована: Май 3, 2025
Gradient porous structures (GPS) offer significant mechanical and functional advantages over homogeneous counterparts. This paper proposes a computational design framework utilizing spatial Voronoi diagrams to create lightweight, stress-responsive frames optimized for architectural double-curvature arched shell roofing components. The method integrates Solid Isotropic Material with Penalization (SIMP)-based topology optimization (TO) establish initial stress-informed material distributions, adaptive control point (CP) placement guided by localized stress data, bi-objective genetic algorithm (GA) optimizing maximum average displacement. Following optimization, weighted Lloyd relaxation (LR) refines cells into frameworks varying densities corresponding gradients. Finite Element Analysis (FEA) demonstrates that the Voronoi-driven GPS achieves notable improvements, revealing up 79.7% volume reduction improvement in structural efficiency, achieving stiffness-to-weight ratio (SWR) exceeding 2200 configurations. Furthermore, consistently maintain von Mises (MVM) stresses below 20 MPa, well within allowable yield strength of Polyethylene Terephthalate Glycol (PETG) (53 MPa). developed effectively bridges performance, aesthetic considerations, offering substantial potential application advanced, high-performance systems.
Язык: Английский
Процитировано
0
International Journal of Mechanical Sciences, Год журнала: 2025, Номер unknown, С. 110402 - 110402
Опубликована: Май 1, 2025
Язык: Английский
Процитировано
0
Materials, Год журнала: 2024, Номер 17(21), С. 5305 - 5305
Опубликована: Окт. 31, 2024
The emerging paradigm of personalised bone repair embodies a transformative triad comprising bio-inspired design, digital fabrication, and the exploration innovative materials. increasing average age population, alongside rising incidence fractures associated with age-related conditions such as osteoporosis, necessitates development customised, efficient, minimally invasive treatment modalities alternatives to conventional methods (e.g., autografts, allografts, Ilizarov distraction, fixators) typically employed promote regeneration. A promising technique involves use cellularised scaffolds incorporating mesenchymal stem cells (MSCs). selection materials—ranging from metals ceramics synthetic or natural bio-derived polymers—combined design inspired by sources (including bone, corals, algae, shells, silk, plants) facilitates replication geometries, architectures, porosities, biodegradation capabilities, mechanical properties conducive physiological To mimic internal structures geometries for construct customisation, can be designed using Computer-aided Design (CAD) fabricated via 3D-printing techniques. This approach not only enables precise control over external shapes architectures but also accommodates diverse materials that improve biological performance provide economic advantages. Finally, advanced numerical models are simulate, analyse, optimise complex processes involved in regeneration, computational predictions validated against experimental data vivo studies ascertain model’s ability predict recovery shape function.
Язык: Английский
Процитировано
2
Polymers, Год журнала: 2024, Номер 16(23), С. 3286 - 3286
Опубликована: Ноя. 26, 2024
The main objective of this study is to analyze the impact resistance aluminum foam composites containing fillers and coatings investigate effect different thickness ratios on capability. We prepared using polyurea performed tests numerical simulations. A comparison results shows that Abaqus simulation are in general agreement with test results. show filler material coating can significantly improve foam, best composite back. An extended was carried out a model validated by For energy absorption process, there an optimum value for ratio foam/polyurea composite, which 3:1. remaining kinetic cylindrical fragments 3-1-1-2 decreased 13.26%, 4-1-1-2 11.91%, 2-1-1-2 11.78%, 1-1-1-2 increased 2.7% when compared control group. efficiency increases as residual decreases. effect, be used reference design impact-resistant future.
Язык: Английский
Процитировано
2
European Journal of Mechanics - A/Solids, Год журнала: 2024, Номер unknown, С. 105502 - 105502
Опубликована: Ноя. 1, 2024
Язык: Английский
Процитировано
0