 | | Mechanics of Solids
A Journal of Russian Academy of Sciences | | Founded
in January 1966
Issued 6 times a year
Print ISSN 0025-6544
Online ISSN 1934-7936 |
Archive of Issues
| Total articles in the database: | | 13427 |
| In Russian (Èçâ. ÐÀÍ. ÌÒÒ): | | 8178
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| In English (Mech. Solids): | | 5249 |
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| Xiang Li, Shanhao Wang, Ningchuang Li, Chengche Zhou, Kang Wen, Junjian Fu, and Haihua Wu, "Energy-Absorbing Properties of Thin-Walled Bionic Gradient Layered Bellows under Axial Compression," Mech. Solids. 60 (6), 5157-5174 (2025) |
| Year |
2025 |
Volume |
60 |
Number |
6 |
Pages |
5157-5174 |
| DOI |
10.1134/S0025654425604100 |
| Title |
Energy-Absorbing Properties of Thin-Walled Bionic Gradient Layered Bellows under Axial Compression |
| Author(s) |
Xiang Li (College of Mechanical and Power Engineering, China Three Gorges University, Yichang, Hubei, 443002 China;Hubei Provincial Key Laboratory of Design and Maintenance of Hydropower Machinery and Equipment, China Three Gorges University, China Three Gorges University, Yichang, Hubei, 443002 China, lixiangqk@163.com)
Shanhao Wang (College of Mechanical and Power Engineering, China Three Gorges University, Yichang, Hubei, 443002 China)
Ningchuang Li (College of Mechanical and Power Engineering, China Three Gorges University, Yichang, Hubei, 443002 China)
Chengche Zhou (College of Mechanical and Power Engineering, China Three Gorges University, Yichang, Hubei, 443002 China)
Kang Wen (College of Mechanical and Power Engineering, China Three Gorges University, Yichang, Hubei, 443002 China)
Junjian Fu (College of Mechanical and Power Engineering, China Three Gorges University, Yichang, Hubei, 443002 China; Hubei Provincial Key Laboratory of Design and Maintenance of Hydropower Machinery and Equipment, China Three Gorges University, China Three Gorges University, Yichang, Hubei, 443002 China; State Key Laboratory of Intelligent Manufacturing Equipment and Technology, Tsinghua University, Beijing, China)
Haihua Wu (College of Mechanical and Power Engineering, China Three Gorges University, Yichang, Hubei, 443002 China;Hubei Engineering Research Center for Graphite Additive Manufacturing Technology and Equipment, China Three Gorges University, Yichang, Hubei, 443002 China) |
| Abstract |
Inspired by the layered structure of human vertebrae and spider webs, a thin-walled bionic
gradient layered bellows (TBLB) was proposed by integrating layered design and gradient-designed
filling structures into traditional bellow configurations. This structure enhances energy absorption
while effectively reducing the initial peak crushing force (IPCF). A combined experimental and
numerical simulation approach was employed to comparatively analyze the energy absorption performance of 0-2 Layer TBLB and traditional multicellular tube (TMT) under axial loading. Results
demonstrate that increasing the layered number stabilizes deformation and strengthens energy absorption. Specifically, the specific energy absorption (SEA) of 1-Layer and 2-Layer TBLB significantly
improved by 108 and 154%, respectively, compared to 0-Layer TBLB. While 2-Layer TBLB exhibited
comparable energy absorption to TMT, its IPCF was 44.1% lower than that of TMT. Additionally,
positive-gradient bellow structures outperformed negative-gradient counterparts in energy absorption
capability. The effects of multi-layered corrugated cores with different cross-sections and impact
velocity (V) on TBLB’s energy absorption were further investigated. Hexagonal multi-layered corrugated cores demonstrated superior energy absorption to circular counterparts, achieving 10% higher
SEA and 36.2% improvement in compression force efficiency (CFE). Moreover, the SEA of TBLB
increased with rising V, indicating that higher V enhances the energy absorption advantages of TBLB.
These findings highlight the critical role of layered design, gradient configuration, and cross-sectional
geometry in optimizing crashworthiness performance. |
| Keywords |
Bellows, Layer, Bionic, Energy-absorbing effectiveness factor |
| Received |
30 July 2025 | Revised |
26 September 2025 | Accepted |
28 September 2025 |
| Link to Fulltext |
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