 | | 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: | | 13653 |
| In Russian (Èçâ. ÐÀÍ. ÌÒÒ): | | 8223
|
| In English (Mech. Solids): | | 5430 |
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| Dongquan Wu, Yanshuang Men, Lichen Zhang, and Jiazhen Cui, "A Numerical Study on the Bending and Impact Properties of Semi-Reentrant Sandwich Structures," Mech. Solids. 60 (8), 6796-6822 (2025) |
| Year |
2025 |
Volume |
60 |
Number |
8 |
Pages |
6796-6822 |
| DOI |
10.1134/S0025654425604124 |
| Title |
A Numerical Study on the Bending and Impact Properties of Semi-Reentrant Sandwich Structures |
| Author(s) |
Dongquan Wu (Sino-European Institute of Aviation Engineering, Civil Aviation University of China, Tianjin, 300300 China, dqwu@cauc.edu.cn)
Yanshuang Men (Sino-European Institute of Aviation Engineering, Civil Aviation University of China, Tianjin, 300300 China)
Lichen Zhang (Sino-European Institute of Aviation Engineering, Civil Aviation University of China, Tianjin, 300300 China)
Jiazhen Cui (Sino-European Institute of Aviation Engineering, Civil Aviation University of China, Tianjin, 300300 China) |
| Abstract |
A Semi Reentrant structure is a hybrid structure combining standard honeycomb cells with Reentrant cells. It exhibits monoclastic curvature when bending over the vertical arm direction. The bending behaviours (the minimum curvature radius, rmin) and impact performance (peak force, maximum displacement, energy absorption and specific energy absorption) of Honeycomb, Reentrant and Semi Reentrant sandwich panels have been studied and compared via finite element simulation. The result shows that the Semi Reentrant sandwich have better bending performance and median impact properties, therefore more advantages in engineering applications. The influence of the element types of core structures and face sheet thickness on the mechanical properties of Semi Reentrant sandwich structures was investigated. With increased face sheet thickness, the rmin and impact strength of the sandwich structures increased with smaller peak force and max displacement. The multilayer sandwich structures with Semi Reentrant core were designed and analysed, which had the advantage of lightweight and enhancement of the mechanical properties. Finally, by filling crushable foam materials in the sandwich structures, its mechanical properties during bending and impact processes could be improved further. |
| Keywords |
Semi Reentrant structure, bending behaviors, impact performance, finite element method, multilayer sandwich structure, crushable foam |
| Received |
31 July 2025 | Revised |
10 November 2025 | Accepted |
27 November 2025 |
| Link to Fulltext |
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