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• W4312541715 abstract "<abstract> <p>Thin-walled structures have been widely used in various parts of vehicle subsystems because of their high-efficiency impact energy absorption and lightweight characteristics. However, the impact deformation mode of conventional thin-walled structures is unstable and the energy absorption efficiency is low. Therefore, a series of novel bionic conch structures (BCS) are proposed to find a more excellent crashworthiness design in this study. First, the finite element simulation model of BCS verified by experiments is established. Then, the energy absorption characteristics of bionic conch structures, and conventional single-cell and multi-cell tubes under axial loading are compared by employing finite element simulation. The results show that the thin-walled structures inspired by conchs have a higher energy absorption efficiency than the other two structures with the same mass. In addition, the influence of main design parameters (wall thickness, inner and outer ring diameter, and the number of inner and outer panels) on the crashworthiness of BCS is studied through parameter design and factor significance analysis. Finally, the optimal geometric configuration is found by combining the approximation model and multi-objective particle swarm optimization, and the crashworthiness of BCS is further optimized. The bionic crashworthiness design and optimization framework proposed in this study can also provide a reference for other engineering protective structures.</p> </abstract>" @default.
• W4312541715 created "2023-01-05" @default.
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• W4312541715 date "2023-01-01" @default.
• W4312541715 modified "2023-09-25" @default.
• W4312541715 title "Bionic design and multi-objective optimization of thin-walled structures inspired by conchs" @default.
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• W4312541715 doi "https://doi.org/10.3934/era.2023028" @default.
• W4312541715 hasPublicationYear "2023" @default.
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