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Ultra-light hierarchical meta-materials on a body-centred cubic lattice

Rayneau-Kirkhope, Daniel; Mao, Yong; Farr, Robert

Authors

Daniel Rayneau-Kirkhope

YONG MAO yong.mao@nottingham.ac.uk
Associate Professor

Robert Farr



Abstract

Modern fabrication techniques offer the freedom to design and manufacture structures with complex geometry on many lengthscales, offering many potential advantages. For example, fractal/hierarchical struts have been shown to be exceptionally strong and yet light (Rayneau-Kirkhope D. et al., Phys. Rev. Lett., 109 (2012) 204301). In this letter, we propose a new class of meta-material, constructed from fractal or hierarchical struts linking a specific set of lattice points. We present a mechanical analysis of this meta-material resulting from a body-centred cubic (BCC) lattice. We show that, through the use of hierarchy, the material usage follows an enhanced scaling relation, and both material property and overall efficiency can be optimised for a specific applied stress. Such a design has the potential of providing the next generation of lightweight, buckling-resistant meta-materials.

Journal Article Type Article
Publication Date Sep 11, 2017
Journal EPL
Print ISSN 0295-5075
Electronic ISSN 1286-4854
Publisher EPL Association
Peer Reviewed Peer Reviewed
Volume 119
Issue 1
Article Number 14001
APA6 Citation Rayneau-Kirkhope, D., Mao, Y., & Farr, R. (2017). Ultra-light hierarchical meta-materials on a body-centred cubic lattice. EPL, 119(1), https://doi.org/10.1209/0295-5075/119/14001
DOI https://doi.org/10.1209/0295-5075/119/14001
Publisher URL http://iopscience.iop.org/article/10.1209/0295-5075/119/14001/meta
Copyright Statement Copyright information regarding this work can be found at the following address: http://eprints.nottingh.../end_user_agreement.pdf

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Copyright Statement
Copyright information regarding this work can be found at the following address: http://eprints.nottingham.ac.uk/end_user_agreement.pdf





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