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dc.contributor.authorLiu, Huen_US
dc.contributor.authorZhang, Ee Tengen_US
dc.contributor.authorWang, Guangjianen_US
dc.contributor.authorNg, Bing Fengen_US
dc.identifier.citationLiu, 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.
dc.description.abstractNature’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.en_US
dc.description.sponsorshipNanyang Technological Universityen_US
dc.description.sponsorshipNational Research Foundation (NRF)en_US
dc.relation.ispartofInternational Journal of Mechanical Sciencesen_US
dc.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.en_US
dc.subjectEngineering::Mechanical engineering::Mechanics and dynamicsen_US
dc.titleIn-plane crushing behavior and energy absorption of a novel graded honeycomb from hierarchical architectureen_US
dc.typeJournal Articleen
dc.contributor.schoolSchool of Mechanical and Aerospace Engineeringen_US
dc.contributor.researchSingapore Centre for 3D Printingen_US
dc.description.versionSubmitted/Accepted versionen_US
dc.subject.keywordsIn-Plane Crushingen_US
dc.subject.keywordsImpact Behavioren_US
dc.subject.keywordsFunctionally Gradeden_US
dc.subject.keywordsEnergy Absorptionen_US
dc.description.acknowledgementThe authors would like to thank the Singapore Centre for 3D Printing, which is supported by the National Research Foundation, Prime Minister’s Office, Singapore under its Medium-Sized Centre funding scheme, as well as the internal funding by Nanyang Technological University 04INS000329C160 and 04INS000453C160.en_US
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