A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Out-of-plane crushing behavior of hybrid hierarchical square honeycombs
https://orcid.org/0000-0002-4360-2752
Abstract The edge-based or vertex-based hierarchical design has been increasingly used as an effective strategy for improving the mechanical performance of honeycombs. In this study, the hybrid hierarchical square honeycomb (HHSH) is developed to successively integrate the topological features of both the edge-based and vertex-based hierarchy, and its out-of-plane crushing performance is studied experimentally, numerically and theoretically. The finite element model of HHSH is established firstly and validated by the experimental test. Then, the crushing behavior of HHSH is studied and compared with that of the corresponding regular square honeycomb (RSH) and edge-based hierarchical square honeycomb (EHSH). Results indicate that the HHSH exhibits superior crushing performance to RSH and EHSH with the same mass. Specifically, the maximum plateau stress of HHSH could be 223% higher than that of RSH. In addition, the effects of structural parameters on the deformation mode, plateau stress and peak stress of HHSH are explored. Finally, a theoretical model for the plateau stress of HHSH is developed and verified. This study provides effective guidance for the design of hierarchical honeycombs with superior crushing performance.
Highlights A hybrid hierarchical square honeycomb (HHSH) that integrates the geometric features of both edge-based and vertex-based hierarchical honeycombs is constructed, and it is found that the hybrid hierarchy can improve the out-of-plane crushing performance of honeycomb with the same mass. The enhancement mechanism of hybrid hierarchy on the crushing performance of honeycomb is analyzed and explained. The theoretical model for the plateau stress of HHSH is developed and verified.
Out-of-plane crushing behavior of hybrid hierarchical square honeycombs
https://orcid.org/0000-0002-4360-2752
Abstract The edge-based or vertex-based hierarchical design has been increasingly used as an effective strategy for improving the mechanical performance of honeycombs. In this study, the hybrid hierarchical square honeycomb (HHSH) is developed to successively integrate the topological features of both the edge-based and vertex-based hierarchy, and its out-of-plane crushing performance is studied experimentally, numerically and theoretically. The finite element model of HHSH is established firstly and validated by the experimental test. Then, the crushing behavior of HHSH is studied and compared with that of the corresponding regular square honeycomb (RSH) and edge-based hierarchical square honeycomb (EHSH). Results indicate that the HHSH exhibits superior crushing performance to RSH and EHSH with the same mass. Specifically, the maximum plateau stress of HHSH could be 223% higher than that of RSH. In addition, the effects of structural parameters on the deformation mode, plateau stress and peak stress of HHSH are explored. Finally, a theoretical model for the plateau stress of HHSH is developed and verified. This study provides effective guidance for the design of hierarchical honeycombs with superior crushing performance.
Highlights A hybrid hierarchical square honeycomb (HHSH) that integrates the geometric features of both edge-based and vertex-based hierarchical honeycombs is constructed, and it is found that the hybrid hierarchy can improve the out-of-plane crushing performance of honeycomb with the same mass. The enhancement mechanism of hybrid hierarchy on the crushing performance of honeycomb is analyzed and explained. The theoretical model for the plateau stress of HHSH is developed and verified.
Out-of-plane crushing behavior of hybrid hierarchical square honeycombs
https://orcid.org/0000-0002-4360-2752
Abstract The edge-based or vertex-based hierarchical design has been increasingly used as an effective strategy for improving the mechanical performance of honeycombs. In this study, the hybrid hierarchical square honeycomb (HHSH) is developed to successively integrate the topological features of both the edge-based and vertex-based hierarchy, and its out-of-plane crushing performance is studied experimentally, numerically and theoretically. The finite element model of HHSH is established firstly and validated by the experimental test. Then, the crushing behavior of HHSH is studied and compared with that of the corresponding regular square honeycomb (RSH) and edge-based hierarchical square honeycomb (EHSH). Results indicate that the HHSH exhibits superior crushing performance to RSH and EHSH with the same mass. Specifically, the maximum plateau stress of HHSH could be 223% higher than that of RSH. In addition, the effects of structural parameters on the deformation mode, plateau stress and peak stress of HHSH are explored. Finally, a theoretical model for the plateau stress of HHSH is developed and verified. This study provides effective guidance for the design of hierarchical honeycombs with superior crushing performance.
Highlights A hybrid hierarchical square honeycomb (HHSH) that integrates the geometric features of both edge-based and vertex-based hierarchical honeycombs is constructed, and it is found that the hybrid hierarchy can improve the out-of-plane crushing performance of honeycomb with the same mass. The enhancement mechanism of hybrid hierarchy on the crushing performance of honeycomb is analyzed and explained. The theoretical model for the plateau stress of HHSH is developed and verified.
Out-of-plane crushing behavior of hybrid hierarchical square honeycombs
Wang, Zhonggang (author) / Deng, Junjie (author) / He, Kunning (author) / Tao, Yong (author)
Thin-Walled Structures ; 181
2022-08-15
Article (Journal)
Electronic Resource
English
In-plane crushing behaviors of piecewise linear graded honeycombs
| British Library Online Contents | 2019