Bionic Inner-Tapered Energy Absorption Tube Featuring Progressively Enhanced Fold Deformation Mode
Slender tubes are in high demand owing to their lightweight and outstanding energy absorption. However, conventional slender tubes are prone to catastrophic failures such as Euler’s buckling under axial load. Interestingly, growing bamboos overcome this similar dilemma via a unique tapered intine in...
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| Language: | English |
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MDPI AG
2024-12-01
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| Series: | Biomimetics |
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| Online Access: | https://www.mdpi.com/2313-7673/10/1/6 |
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| author | Shuang Zhang Zhengzhi Mu Wenda Song Zhiyan Zhang Hexuan Yu Binjie Zhang Zhiwu Han Luquan Ren |
| author_facet | Shuang Zhang Zhengzhi Mu Wenda Song Zhiyan Zhang Hexuan Yu Binjie Zhang Zhiwu Han Luquan Ren |
| author_sort | Shuang Zhang |
| collection | DOAJ |
| description | Slender tubes are in high demand owing to their lightweight and outstanding energy absorption. However, conventional slender tubes are prone to catastrophic failures such as Euler’s buckling under axial load. Interestingly, growing bamboos overcome this similar dilemma via a unique tapered intine in the internodes, which endows them with excellent energy absorption. Inspired by this finding, a bionic inner-tapered tube (BITT) was designed to enhance the energy absorption of slender tubes under axial load. The special energy absorption (SEA) was evaluated via a quasi-static axial compression test. Then, theoretical calculation and finite element analysis were carried out to analyze the energy absorption mechanisms. The results reveal that the tapered inner wall induces a progressively enhanced fold deformation mode for BITT, which not only prevents buckling failure and decreases initial peak crushing load but also improves the energy absorption efficiency by increasing plastic deformation. The influences of taper and length–diameter ratio on the axial energy absorption of BITT are explored. Finally, the bionic square array (BSA) and bionic hexagon array (BHA) are fabricated by taking BITT as the basic structural unit, which significantly improves the main energy absorption performance indicators under axial load. |
| format | Article |
| id | doaj-art-1a4296aeb0c74efaaeffafc20b766dd5 |
| institution | Kabale University |
| issn | 2313-7673 |
| language | English |
| publishDate | 2024-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Biomimetics |
| spelling | doaj-art-1a4296aeb0c74efaaeffafc20b766dd52025-01-24T13:24:33ZengMDPI AGBiomimetics2313-76732024-12-01101610.3390/biomimetics10010006Bionic Inner-Tapered Energy Absorption Tube Featuring Progressively Enhanced Fold Deformation ModeShuang Zhang0Zhengzhi Mu1Wenda Song2Zhiyan Zhang3Hexuan Yu4Binjie Zhang5Zhiwu Han6Luquan Ren7Key Laboratory of Bionic Engineering, Ministry of Education, Jilin University, Changchun 130022, ChinaKey Laboratory of Bionic Engineering, Ministry of Education, Jilin University, Changchun 130022, ChinaKey Laboratory of Bionic Engineering, Ministry of Education, Jilin University, Changchun 130022, ChinaKey Laboratory of Bionic Engineering, Ministry of Education, Jilin University, Changchun 130022, ChinaKey Laboratory of Bionic Engineering, Ministry of Education, Jilin University, Changchun 130022, ChinaNanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing 210093, ChinaKey Laboratory of Bionic Engineering, Ministry of Education, Jilin University, Changchun 130022, ChinaKey Laboratory of Bionic Engineering, Ministry of Education, Jilin University, Changchun 130022, ChinaSlender tubes are in high demand owing to their lightweight and outstanding energy absorption. However, conventional slender tubes are prone to catastrophic failures such as Euler’s buckling under axial load. Interestingly, growing bamboos overcome this similar dilemma via a unique tapered intine in the internodes, which endows them with excellent energy absorption. Inspired by this finding, a bionic inner-tapered tube (BITT) was designed to enhance the energy absorption of slender tubes under axial load. The special energy absorption (SEA) was evaluated via a quasi-static axial compression test. Then, theoretical calculation and finite element analysis were carried out to analyze the energy absorption mechanisms. The results reveal that the tapered inner wall induces a progressively enhanced fold deformation mode for BITT, which not only prevents buckling failure and decreases initial peak crushing load but also improves the energy absorption efficiency by increasing plastic deformation. The influences of taper and length–diameter ratio on the axial energy absorption of BITT are explored. Finally, the bionic square array (BSA) and bionic hexagon array (BHA) are fabricated by taking BITT as the basic structural unit, which significantly improves the main energy absorption performance indicators under axial load.https://www.mdpi.com/2313-7673/10/1/6energy absorption tubeinner-taperedbionic designbamboo internode |
| spellingShingle | Shuang Zhang Zhengzhi Mu Wenda Song Zhiyan Zhang Hexuan Yu Binjie Zhang Zhiwu Han Luquan Ren Bionic Inner-Tapered Energy Absorption Tube Featuring Progressively Enhanced Fold Deformation Mode Biomimetics energy absorption tube inner-tapered bionic design bamboo internode |
| title | Bionic Inner-Tapered Energy Absorption Tube Featuring Progressively Enhanced Fold Deformation Mode |
| title_full | Bionic Inner-Tapered Energy Absorption Tube Featuring Progressively Enhanced Fold Deformation Mode |
| title_fullStr | Bionic Inner-Tapered Energy Absorption Tube Featuring Progressively Enhanced Fold Deformation Mode |
| title_full_unstemmed | Bionic Inner-Tapered Energy Absorption Tube Featuring Progressively Enhanced Fold Deformation Mode |
| title_short | Bionic Inner-Tapered Energy Absorption Tube Featuring Progressively Enhanced Fold Deformation Mode |
| title_sort | bionic inner tapered energy absorption tube featuring progressively enhanced fold deformation mode |
| topic | energy absorption tube inner-tapered bionic design bamboo internode |
| url | https://www.mdpi.com/2313-7673/10/1/6 |
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