Mechanical properties of three-dimensional functionally graded triply periodic minimum surface structures

Qiu, N; Zhang, J; Li, C; Shen, Y; Fang, J

Mechanical properties of three-dimensional functionally graded triply periodic minimum surface structures

Qiu, N Zhang, J Li, C

Shen, Y Fang, J

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Publisher:: PERGAMON-ELSEVIER SCIENCE LTD
Publication Type:: Journal Article
Citation:: International Journal of Mechanical Sciences, 2023, 246
Issue Date:: 2023-05-15

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Field	Value	Language
dc.contributor.author	Qiu, N
dc.contributor.author	Zhang, J
dc.contributor.author	Li, C https://orcid.org/0000-0002-5514-6635
dc.contributor.author	Shen, Y
dc.contributor.author	Fang, J https://orcid.org/0000-0003-0119-6108
dc.date.accessioned	2024-04-23T04:55:36Z
dc.date.available	2024-04-23T04:55:36Z
dc.date.issued	2023-05-15
dc.identifier.citation	International Journal of Mechanical Sciences, 2023, 246
dc.identifier.issn	0020-7403
dc.identifier.issn	1879-2162
dc.identifier.uri	http://hdl.handle.net/10453/178280
dc.description.abstract	Lattice structures based on triply periodic minimum surfaces (TPMS) have received extensive attention due to their superior light-weighting and energy absorption properties. To generate a more competent design to accommodate multi-directional loading conditions in real-life applications, a three-dimensional functionally graded (FG-3D) TPMS structure was proposed in this study. Selective laser melting (SLM) was utilized to fabricate the designed TPMS lattice structures with Ti-6Al-4 V powder. They were investigated experimentally and numerically in terms of mechanical properties under different loading directions. The results indicated that the FG-3D Primitive (P) and Gyroid (G) structures can absorb 45.3% and 12% more energy than the uniform counterparts, respectively, and exhibit excellent energy absorption capacity under different loading directions. In contrast, the mechanical properties of both one- and two-dimensional FG structures might be inferior in some loading directions. Meanwhile, the parametric study of FG-3D structures was conducted and found that a large volume fraction and proper range of gradient variation are preferable for improving the energy absorption capability. These findings can provide guidelines on gradient design strategies, which can promote the application of energy-absorbing structures in real-life engineering.
dc.language	English
dc.publisher	PERGAMON-ELSEVIER SCIENCE LTD
dc.relation	http://purl.org/au-research/grants/arc/DE210101676
dc.relation.ispartof	International Journal of Mechanical Sciences
dc.relation.isbasedon	10.1016/j.ijmecsci.2023.108118
dc.rights	info:eu-repo/semantics/embargoedAccess
dc.subject	0905 Civil Engineering, 0910 Manufacturing Engineering, 0913 Mechanical Engineering
dc.subject.classification	Mechanical Engineering & Transports
dc.subject.classification	40 Engineering
dc.title	Mechanical properties of three-dimensional functionally graded triply periodic minimum surface structures
dc.type	Journal Article
utslib.citation.volume	246
utslib.for	0905 Civil Engineering
utslib.for	0910 Manufacturing Engineering
utslib.for	0913 Mechanical Engineering
pubs.organisational-group	University of Technology Sydney
pubs.organisational-group	University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	University of Technology Sydney/Faculty of Engineering and Information Technology/School of Civil and Environmental Engineering
utslib.copyright.status	embargoed	*
utslib.copyright.embargo	2025-05-01T00:00:00+1000Z
dc.date.updated	2024-04-23T04:55:33Z
pubs.publication-status	Published
pubs.volume	246

Abstract:

Lattice structures based on triply periodic minimum surfaces (TPMS) have received extensive attention due to their superior light-weighting and energy absorption properties. To generate a more competent design to accommodate multi-directional loading conditions in real-life applications, a three-dimensional functionally graded (FG-3D) TPMS structure was proposed in this study. Selective laser melting (SLM) was utilized to fabricate the designed TPMS lattice structures with Ti-6Al-4 V powder. They were investigated experimentally and numerically in terms of mechanical properties under different loading directions. The results indicated that the FG-3D Primitive (P) and Gyroid (G) structures can absorb 45.3% and 12% more energy than the uniform counterparts, respectively, and exhibit excellent energy absorption capacity under different loading directions. In contrast, the mechanical properties of both one- and two-dimensional FG structures might be inferior in some loading directions. Meanwhile, the parametric study of FG-3D structures was conducted and found that a large volume fraction and proper range of gradient variation are preferable for improving the energy absorption capability. These findings can provide guidelines on gradient design strategies, which can promote the application of energy-absorbing structures in real-life engineering.

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http://hdl.handle.net/10453/178280