Design and analysis of multiple bio-inspired aperiodic lattice structures by laser powder bed fusion
Laser powder bed fusion (LPBF) fabricated lattice structures are widely used as energy absorbers due to their lightweight and porous nature. To develop a bio-inspired lattice structure that enhances energy absorption capacity while achieving controllable deformation direction. Three bio-inspired sin...
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Elsevier
2025-05-01
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| Series: | Materials & Design |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S0264127525004149 |
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| author | Dongming Li Tongyuan Sun Bingzhi Chen Xu Zhang |
| author_facet | Dongming Li Tongyuan Sun Bingzhi Chen Xu Zhang |
| author_sort | Dongming Li |
| collection | DOAJ |
| description | Laser powder bed fusion (LPBF) fabricated lattice structures are widely used as energy absorbers due to their lightweight and porous nature. To develop a bio-inspired lattice structure that enhances energy absorption capacity while achieving controllable deformation direction. Three bio-inspired single cells—HHDS, HHLHS and HHRHS, were designed with bamboo and honeycomb outer contours. Internally, HHDS integrated plant cell wall double-shell features, while HHLHS/HHRHS incorporated whelk helical morphology. Four three-layer lattice structures were fabricated via LPBF. Quasi-static tests and simulations showed HHDS cells exhibited superior load-bearing capacity, while digital image correlation (DIC) confirmed HHLHS/HHRHS cells enabled pre-folding for compression direction control. Further studies on five types of five-layer lattice structures investigated the impact of single cell arrangements on lattice structure performance. Results indicated that different arrangement combinations produced varied deformation behaviors, and changes in the number and proportion of single cells altered the loading capacity of the lattice structures. A five-layer bio-inspired aperiodic lattice structure with sandglass deformation behavior was proposed. It enhanced compression stability and the specific energy absorption (SEA) of the proposed structure reached 22.317 kJ/kg, demonstrating superior crashworthiness. This study is of great significance to improve the performance of the lattice structure. |
| format | Article |
| id | doaj-art-0e53164461294bb89e8552a33ea9c045 |
| institution | OA Journals |
| issn | 0264-1275 |
| language | English |
| publishDate | 2025-05-01 |
| publisher | Elsevier |
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| series | Materials & Design |
| spelling | doaj-art-0e53164461294bb89e8552a33ea9c0452025-08-20T02:02:47ZengElsevierMaterials & Design0264-12752025-05-0125311399410.1016/j.matdes.2025.113994Design and analysis of multiple bio-inspired aperiodic lattice structures by laser powder bed fusionDongming Li0Tongyuan Sun1Bingzhi Chen2Xu Zhang3Key Laboratory of Railway Industry on Safety Service Key Technologies for High-speed Train, Dalian Jiaotong University, Dalian 116028, China; Zhan Tianyou Honors College, Dalian Jiaotong University, Dalian 116028, ChinaKey Laboratory of Railway Industry on Safety Service Key Technologies for High-speed Train, Dalian Jiaotong University, Dalian 116028, China; Zhan Tianyou Honors College, Dalian Jiaotong University, Dalian 116028, ChinaKey Laboratory of Railway Industry on Safety Service Key Technologies for High-speed Train, Dalian Jiaotong University, Dalian 116028, China; Zhan Tianyou Honors College, Dalian Jiaotong University, Dalian 116028, ChinaKey Laboratory of Railway Industry on Safety Service Key Technologies for High-speed Train, Dalian Jiaotong University, Dalian 116028, China; Zhan Tianyou Honors College, Dalian Jiaotong University, Dalian 116028, China; Corresponding author at: Key Laboratory of Railway Industry on Safety Service Key Technologies for High-speed Train, Dalian Jiaotong University, Dalian 116028, China.Laser powder bed fusion (LPBF) fabricated lattice structures are widely used as energy absorbers due to their lightweight and porous nature. To develop a bio-inspired lattice structure that enhances energy absorption capacity while achieving controllable deformation direction. Three bio-inspired single cells—HHDS, HHLHS and HHRHS, were designed with bamboo and honeycomb outer contours. Internally, HHDS integrated plant cell wall double-shell features, while HHLHS/HHRHS incorporated whelk helical morphology. Four three-layer lattice structures were fabricated via LPBF. Quasi-static tests and simulations showed HHDS cells exhibited superior load-bearing capacity, while digital image correlation (DIC) confirmed HHLHS/HHRHS cells enabled pre-folding for compression direction control. Further studies on five types of five-layer lattice structures investigated the impact of single cell arrangements on lattice structure performance. Results indicated that different arrangement combinations produced varied deformation behaviors, and changes in the number and proportion of single cells altered the loading capacity of the lattice structures. A five-layer bio-inspired aperiodic lattice structure with sandglass deformation behavior was proposed. It enhanced compression stability and the specific energy absorption (SEA) of the proposed structure reached 22.317 kJ/kg, demonstrating superior crashworthiness. This study is of great significance to improve the performance of the lattice structure.http://www.sciencedirect.com/science/article/pii/S0264127525004149Multiple bio-inspired designAperiodic lattice structureEnergy absorptionCells arrangementDeformation stability |
| spellingShingle | Dongming Li Tongyuan Sun Bingzhi Chen Xu Zhang Design and analysis of multiple bio-inspired aperiodic lattice structures by laser powder bed fusion Materials & Design Multiple bio-inspired design Aperiodic lattice structure Energy absorption Cells arrangement Deformation stability |
| title | Design and analysis of multiple bio-inspired aperiodic lattice structures by laser powder bed fusion |
| title_full | Design and analysis of multiple bio-inspired aperiodic lattice structures by laser powder bed fusion |
| title_fullStr | Design and analysis of multiple bio-inspired aperiodic lattice structures by laser powder bed fusion |
| title_full_unstemmed | Design and analysis of multiple bio-inspired aperiodic lattice structures by laser powder bed fusion |
| title_short | Design and analysis of multiple bio-inspired aperiodic lattice structures by laser powder bed fusion |
| title_sort | design and analysis of multiple bio inspired aperiodic lattice structures by laser powder bed fusion |
| topic | Multiple bio-inspired design Aperiodic lattice structure Energy absorption Cells arrangement Deformation stability |
| url | http://www.sciencedirect.com/science/article/pii/S0264127525004149 |
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