Chenhao Lu , Yao Chen , Jiayao Shi , Jiangjun Gao , Hengzhu Lv , Zhengliang Shen , Pooya Sareh
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引用次数: 0
Abstract
Thin-walled origami tubes are distinguished by their superior energy-absorption capacity during axial crushing, a property largely attributed to their intricate crease patterns. To develop optimized tubes for enhanced energy-absorption performance, we propose a strategy for the inverse design of tubular energy absorbers formed from the least-symmetric crystallographic developable double-corrugation (LSDDC) surface. To this end, first, the phase space of all flat-foldable configurations is systematically mapped based on the kinematics of the LSDDC surface. To account for the various transformations of unit fragments into origami structures, constraint equations are derived based on the inherent geometry of enclosed structures. The solution space for various configurations is delineated using both traversal techniques and the particle swarm optimization (PSO) method. A comparative performance analysis is conducted among the proposed LSDDC tube and two conventional tubes: the isosceles trapezoidal origami bellow (ITOB) tube and the arc-Miura-ori (AMO) tube. Both the AMO and LSDDC tubes demonstrate superior energy-absorption performance compared to the ITOB tube. The choice between the AMO and LSDDC tubes can be made based on specific application requirements. While the AMO tube exhibits a slightly higher mean crushing force than the LSDDC tube, the LSDDC tube possesses a substantially higher crushing force efficiency than the AMO tube. Finally, we present the inverse design process, which identifies the optimal input parameters for energy absorption. This framework enables the transformation of diverse crease patterns into various origami structures with enhanced energy absorption, broadening their applicability and revitalizing the potential of origami-inspired designs.
期刊介绍:
The International Journal of Solids and Structures has as its objective the publication and dissemination of original research in Mechanics of Solids and Structures as a field of Applied Science and Engineering. It fosters thus the exchange of ideas among workers in different parts of the world and also among workers who emphasize different aspects of the foundations and applications of the field.
Standing as it does at the cross-roads of Materials Science, Life Sciences, Mathematics, Physics and Engineering Design, the Mechanics of Solids and Structures is experiencing considerable growth as a result of recent technological advances. The Journal, by providing an international medium of communication, is encouraging this growth and is encompassing all aspects of the field from the more classical problems of structural analysis to mechanics of solids continually interacting with other media and including fracture, flow, wave propagation, heat transfer, thermal effects in solids, optimum design methods, model analysis, structural topology and numerical techniques. Interest extends to both inorganic and organic solids and structures.