Study of the Application of Gyroid Structures in Cyclist Helmets

Buil, Ramón Miralbés; Ranz, David; Higuera, Saul

doi:10.1007/978-3-030-92426-3_8

Cited by 5 publications

(2 citation statements)

References 6 publications

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“…Miralbés et al 133 evaluated the applicability of 3D-printed gyroid for protective bicycle helmets. The foam padding has been replaced by a PLA gyroid structure.…”

Section: Commitment To the Mechanical Sectormentioning

confidence: 99%

Designs, advancements, and applications of three-dimensional printed gyroid structures: A review

Chouhan

Murali

2023

Proceedings of the Institution of Mechanical Engineers, Part E:

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Lattice structures play a key role in influencing the mechanical and thermal properties of many applications. Knowing the importance of lattice structure and its influence on mechanical and thermal properties, this article discussed the triply periodic minimal surface-based gyroid shapes, their design, manufacturability, and difficulties while printing with the additive manufacturing process. This review also emphasizes the impact of changing the structure and additive manufacturing process parameters like porosity, wall thickness, unit cell size, infill, and gradient ratio on the mechanical and thermal properties of the printed parts. This study discussed the advantages and disadvantages of replacing conventional structures with bio-inspired gyroid structures and their effects on mechanical and thermal properties. This review also brought a comparative study between gyroid and other existing lattice structures in terms of mechanical and thermal properties and suggestions are been made to use gyroid shapes compared to existing lattice structures for improved thermal mechanical for different applications like biomedical, structural, and heat transfer fields. In this review article, a multitude of research areas could help the researcher to easily decide the appropriate application-based gyroid structure.

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“…Miralbés et al 133 evaluated the applicability of 3D-printed gyroid for protective bicycle helmets. The foam padding has been replaced by a PLA gyroid structure.…”

Section: Commitment To the Mechanical Sectormentioning

confidence: 99%

Designs, advancements, and applications of three-dimensional printed gyroid structures: A review

Chouhan

Murali

2023

Proceedings of the Institution of Mechanical Engineers, Part E:

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“…According to an experimental finding by Alizadeh-Osgouei et al, 8 a polylactic acid (PLA) gyroid structure with different unit cell sizes and porosities exhibits almost similar mechanical properties comparable to the cancellous bone. The gyroid infill structures are superior to the full honeycomb infill by 6.81% of the mean strength and 12.59% in tensile strength, according to an experimental study by Joska Zdenk et al 21 Miralbes Ramon et al 22 replaced foam padding with an Fused deposition modeling (FDM)-printed PLA gyroid structure for protective bicycle helmets. Dawei Li et al 23 compared sheet-based, strut-based, and graded gyroid structures and revealed that graded have better energy absorption capacity.…”

Section: Tpms-based Gyroid Lattice Structures Design and Characteriza...mentioning

confidence: 99%

Uniform and graded bio-inspired gyroid lattice: Effects of post-curing and print orientation on mechanical property

Chouhan,

Bala Murali

2023

Proceedings of the Institution of Mechanical Engineers, Part L:

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Additive manufacturing is spreading rapidly because it offers great design freedom in creating intricate lightweight shapes using lattice structures that offer numerous possibilities, including applications in aerospace, automotive, and electronics where mechanical properties are paramount. In this paper, inspired by the wing scale of the C. Rubi butterfly, unique uniform and density-graded gyroid lattice structures were proposed. This research designed the uniform gyroid lattice structure with two design configurations of unit cell sizes (4, 6, and 8) and solidity percentages (20, 30, 40, and 50) and density-graded gyroid with a solidity range of 20–80% in a constant volume of 30*30*30 mm. The designs have been modeled in nTopology software and manufactured using the Vat polymerization additive manufacturing technique with two printing orientations (0° and 25°). Two sets of the samples were printed, and one group was given postcuring treatment at 80°C for 2 hours. Quasi-static compression testing was performed to investigate the improvement in mechanical characteristics due to postcuring treatment and print orientation. The results indicate significant relationships between design parameters and mechanical performance. The density-graded gyroid lattice exhibits four times higher compressive strength than higher solidity uniform gyroid samples (UC-8-solidity-40 and 50%) when subjected to the same or less mass. In addition, debonding of connecting surfaces due to higher postcuring temperature, and better performance of horizontally printed samples have been addressed. Moreover, simulation and experimental deformation patterns for uniform and graded gyroid lattice structures have been displayed.

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