Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/155865
Title: In-plane crushing behavior and energy absorption of a novel graded honeycomb from hierarchical architecture
Authors: Liu, Hu
Zhang, Ee Teng
Wang, Guangjian
Ng, Bing Feng
Keywords: Engineering::Mechanical engineering::Mechanics and dynamics
Issue Date: 2022
Source: Liu, H., Zhang, E. T., Wang, G. & Ng, B. F. (2022). In-plane crushing behavior and energy absorption of a novel graded honeycomb from hierarchical architecture. International Journal of Mechanical Sciences. https://dx.doi.org/10.1016/j.ijmecsci.2022.107202
Project: 04INS000329C160 
04INS000453C160. 
Journal: International Journal of Mechanical Sciences 
Abstract: Nature’s bio-organisms are typically hybrid structures composed of hierarchical and functionally graded micro-architectures, which are lightweight and of high mechanical performances. Inspired by nature, an innovative graded hierarchical honeycomb is proposed in this study to enhance its crashworthiness behaviors. The structure is created by replacing cell walls of regular honeycombs with triangular and hexagonal sub-structures and varying the hierarchical length ratio in each layer. The in-plane crushing performances of the graded hierarchical honeycombs are comprehensively analyzed and compared with their uniform hierarchical counterpart. The former exhibits a progressive deformation model under different impact velocities and three plateau stages can be observed under in-plane crushing loads through theoretical predictions. The triangular sub-structure presents better energy absorption than the hexagonal sub-structure, and its specific energy absorption is enhanced by up to 32.2% as compared to the uniform hierarchical honeycomb. The present study suggests that the combination of hierarchy and gradient is an effective strategy to improve the dynamic crushing behaviors of honeycombs, which can be further explored in protective devices to enhance their impact resistance.
URI: https://hdl.handle.net/10356/155865
ISSN: 0020-7403
DOI: 10.1016/j.ijmecsci.2022.107202
Rights: © 2022 Elsevier Ltd.. All rights reserved. This paper was published in International Journal of Mechanical Sciences and is made available with permission of Elsevier Ltd.
Fulltext Permission: embargo_20240324
Fulltext Availability: With Fulltext
Appears in Collections:MAE Journal Articles
SC3DP Journal Articles

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