Excellent mechanical properties of a novel double-diagonal reinforced mechanical metamaterial with tunable Poisson’s ratios inspired by deep-sea glass sponges

Materials & Design, Год журнала: 2025, Номер unknown, С. 113628 - 113628

Опубликована: Янв. 1, 2025

Язык: Английский

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The Chinese Knot inspired anisotropic TC4 lattice Structures: Ultra-high specific strength in engineering materials

Materials & Design, Год журнала: 2024, Номер 244, С. 113121 - 113121

Опубликована: Июнь 27, 2024

Lattice structures possess high specific strength, multi-functionality through innovative structural designs. Here, we proposed an efficient method for the construction of lattice by elongating two-dimensional planar patterns along load direction, which enabled utilization 100 % materials bearing. Inspired Chinese Knot (CK), a series meticulously crafted TC4 were fabricated using selective laser melting. These feature nine tubular units arranged in 3 × matrix interconnected sixteen parallel plates, and their failure modes subsequently investigated uniaxial compression tests. The results show that compressive strength CK structure enhances as increasing density. detachment between plate tube, buckling plate, lead to premature failure, turn leads substantial variations estimated at approximately 80 MPa ∼ 1.5 g/cm3. When thickness exceeds 0.5 mm, tube wall 0.04 stability exhibit 45° shear mode. Notably, can surpass 330 MPa∙cm3/g, represents peak level compared current structures.

Язык: Английский

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Bending response and energy absorption of sandwich beams with combined reinforced auxetic honeycomb core

Mechanics of Advanced Materials and Structures, Год журнала: 2024, Номер unknown, С. 1 - 13

Опубликована: Окт. 24, 2024

Язык: Английский

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Meta-structures for energy absorption: materials, designs, and applications in additive manufacturing and its future scope

Journal of the Brazilian Society of Mechanical Sciences and Engineering, Год журнала: 2024, Номер 46(8)

Опубликована: Июль 30, 2024

Язык: Английский

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Compression behaviour of TPU printed 2D lattice structures using fused filament fabrication: Characterization and applications

Proceedings of the Institution of Mechanical Engineers Part L Journal of Materials Design and Applications, Год журнала: 2025, Номер unknown

Опубликована: Май 28, 2025

Lattice structures are ideal for energy absorption applications due to their unique ability distribute and dissipate forces efficiently. This study investigates the compression deformation behaviour of auxetic (re-entrant) non-auxetic (hexagonal, square) 2D lattice same volume fraction fabricated through fused filament fabrication with Thermoplastic Polyurethane (TPU) material. Uniaxial quasi-static out-of-plane tests were performed evaluate properties such as stiffness, yield strength, absorption. The can be categorized into elastic, plateau, densification regions, reflecting mechanism under load. experimental findings reveal that re-entrant exhibits greater while square demonstrates superior capabilities. A combination higher stiffness forms a blend lattice, resulting in mechanical characteristics fall between those individual types. These lattices have softening effect, which minimized lattice. To leverage these advantages, shoe sole was designed using improve comfort fit.

Язык: Английский

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Targeted mechanical and energy absorption properties of 3D printed aluminium metamaterials

Next Materials, Год журнала: 2024, Номер 7, С. 100356 - 100356

Опубликована: Авг. 28, 2024

Язык: Английский

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Study on the residual stress of simple cubic lattice structure produced by selective laser melting

Journal of Sandwich Structures & Materials, Год журнала: 2024, Номер 26(7), С. 1243 - 1264

Опубликована: Авг. 27, 2024

Lattice structures become the focus for scholars to research due its unique lightweight, high impact resistance and ideal noise reduction. Selective laser melting has a very effective convenient method preparing lattice of excellent quality. However, it is imperative acknowledge that rapid heating cooling processes inherent can generate excessive residual stresses within structures, thereby significantly compromising their mechanical properties. To address this issue, present study seeks elucidate patterns characteristics distribution deformations simple cubic employing combination experimental techniques finite element analysis. The fabrication these accomplished through selective melting. investigation encompasses both two methods, involving X-ray measurements at discrete points on structure, simulations depict overall stress distribution. results show deformation are more likely concentrated initial surface be processed, substrates bigger than bars. Specifically, biggest concentrates Z-bars, up 1393 MPa. in terms state substrate slightly higher structure.

Язык: Английский

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Effects of heat accumulation strategies on defects and microstructure of pure chromium fabricated by laser powder bed fusion: An experimental and numerical study

Journal of Materials Research and Technology, Год журнала: 2024, Номер 33, С. 7333 - 7344

Опубликована: Ноя. 1, 2024

Язык: Английский

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A Study on Compression Behavior and Fracture Morphology in Dumbbell-Shaped Ti6Al4V Lattice Structures Fabricated through Additive Manufacturing

Journal of Materials Engineering and Performance, Год журнала: 2024, Номер unknown

Опубликована: Дек. 20, 2024

Язык: Английский

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Lightweight High-Heat-Resistance Zirconia Ceramic Lattice Screws Prepared by Photocuring 3D Printing Technology

Ceramics International, Год журнала: 2024, Номер unknown

Опубликована: Дек. 1, 2024

Язык: Английский

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