Additively manufactured biodegradable Zn metamaterials with tunable Poisson’s ratio and enhanced mechanical properties

Virtual and Physical Prototyping, Journal Year: 2025, Volume and Issue: 20(1)

Published: Feb. 6, 2025

Language: Английский

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A review on artificial intelligence-enabled mechanical analysis of 3D printed and FEM-modelled auxetic metamaterials

Virtual and Physical Prototyping, Journal Year: 2024, Volume and Issue: 20(1)

Published: Dec. 30, 2024

Auxetic structures, characterised by a negative Poisson's ratio, exhibit the unique property of expanding in all directions under tensile loading and contracting when compressed. The behaviour these structures is highly influenced arrangement material within unit cell interactions between cells. Due to complexity their behaviour, understanding modelling auxetic materials pose significant challenges, requiring extensive experimentation sophisticated frameworks. As result, machine learning (ML) techniques have emerged as powerful tool for predicting mechanical properties studying metamaterials various conditions. This review provides comprehensive analysis use ML algorithms performance metamaterials. It discusses details datasets, employed, 3D printing technologies used sample fabrication, geometries explored literature. In addition 3D-printed this also includes findings from finite element-based models. Finally, paper outlines future research directions, highlighting opportunities advance application using techniques.

Language: Английский

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Recent advances in magnesium alloys for biomedical applications: A review

Materials Today Communications, Journal Year: 2024, Volume and Issue: 42, P. 111239 - 111239

Published: Dec. 9, 2024

Language: Английский

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Application of Homogenization Method in Free Vibration of Multi-Material Auxetic Metamaterials

Vibration, Journal Year: 2025, Volume and Issue: 8(1), P. 2 - 2

Published: Jan. 13, 2025

Different additive manufacturing modalities enable the production of multi-material components which can be used in a wide range industrial applications. The prediction mechanical properties these via finite element modelling rather than through testing is critical terms cost and time. However, due to higher computational time spent on lattice structures, different methods have been investigated accurately predict properties. For this purpose, study proposes use homogenization method two most common types lattices: honeycomb re-entrant auxetics. Modal analyses were performed, first six mode shapes extracted from explicit implicit models. results compared natural frequencies. showed that successfully applied auxetic lattices without compromising accuracy. It was shown models frequencies with an error less 6.5% when all for both lattices. Assurance Criteria, indication degree similarity between models, found 0.996, indicating very high similarity.

Language: Английский

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A review on the utilization of SS 316L lattice structures for orthopaedics developed by the laser powder bed fusion process

Proceedings of the Institution of Mechanical Engineers Part E Journal of Process Mechanical Engineering, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 16, 2025

Stainless Steel 316L (SS316L) is widely used in orthopaedics due to its biocompatibility, affordability, ease of fabrication, adequate mechanical strength and corrosion resistance. Despite many benefits, the stiffness SS316L has been a significant cause for concern since it causes stress shielding implant failure. A potential solution orthopaedic implants lattice SS316L, which can be fabricated using laser powder bed fusion (LPBF) process. The development structures LPBF process allows scaffolds adhere, grow differentiate bone cells with specific properties suitable implants. study highlights different employed implants, mainly focusing on gyroid delves into fabrication structures. Compared traditional solid TPMS showed at least 30%–70% improvement weight reduction, reduced by 80%, material saving 10%–20% biocompatibility 50%–200% osseointegration. other porous metallic there was 10%–15% compressive tensile strengths. concerning strength-to-weight ratio 40% economically viable. review also influence various parameters biological attributes structures, emphasizing benefits their impact Orthopaedics sector. Furthermore, leveraging unique lattices, offers promising an affordable compatible alternative titanium orthopaedics.

Language: Английский

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Airless tires: Structural concepts, mechanical design, and application prospects

Materials & Design, Journal Year: 2025, Volume and Issue: unknown, P. 113933 - 113933

Published: April 1, 2025

Language: Английский

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Mass transport and fluid flow-induced wall shear stress in auxetic bone scaffolds during deformation process: a numerical study

Medicine in Novel Technology and Devices, Journal Year: 2025, Volume and Issue: unknown, P. 100368 - 100368

Published: May 1, 2025

Language: Английский

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Quasi-Static Compressive Behavior and Energy Absorption Performance of Polyether Imide Auxetic Structures Made by Fused Deposition Modeling

Journal of Manufacturing and Materials Processing, Journal Year: 2025, Volume and Issue: 9(5), P. 155 - 155

Published: May 9, 2025

Auxetic structures have garnered considerable interest for being lightweight and exhibiting superior properties such as an excellent energy absorption capability. In this paper, re-entrant missing rib square grid auxetic were additively manufactured via the fused deposition modeling technique using two types of polyether imide materials: ULTEM 9085 1010. In-plane quasi-static compressive tests carried out on proposed at different relative densities to investigate Poisson’s ratio, equivalent modulus, deformation behavior, performance. Finite element simulations compression process conducted, which confirmed behavior observed in experiments. It was found that ratio normalized Young’s modulus 1010 with same geometries very close, while ductile significantly higher than brittle structures. Furthermore, a linear correlation exists between density specific within investigated range, whereas relationship follows power law. This study provides better understanding how material influence characteristics

Language: Английский

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Semi-auxetic piezoresistive textronic

Scientific Reports, Journal Year: 2025, Volume and Issue: 15(1)

Published: Feb. 12, 2025

Auxetic textile sensors represent a new generation of wearable sensors, offering advantages such as high sensitivity, enhanced mechanical properties, and greater comfort due to their suitable physical features. Research in this field remains limited is still its nascent stages. In work, piezoresistive sensor with negative Poisson's ratio was developed using the design concept semi-auxetic yarn, where stretchable band replaced core serve substrate for sensors. A textronic structure created by stitching onto zig-zag pattern. Electromechanical analysis highlighted trade-off between auxetic behaviour highest sensitivity (−4.8) observed length 2 cm, auxeticity (−14.1) found 3 cm. This type applications yoga straps, driving safety belts, compression bandages, breathable belly belts pregnant women.

Language: Английский

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Fracture mechanics analysis of auxetic chiral materials

International Journal of Mechanical Sciences, Journal Year: 2025, Volume and Issue: unknown, P. 110281 - 110281

Published: April 1, 2025

Language: Английский

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