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An error diffusion based method to generate functionally graded cellular structures

Brackett, D.; Ashcroft, I.; Wildman, R.D.; Hague, Richard J.M.

Authors

D. Brackett

I. Ashcroft

R.D. Wildman

Richard J.M. Hague



Abstract

The spatial variation of cell size in a functionally graded cellular structure is achieved using error diffusion to convert a continuous tone image into binary form. Effects of two control parameters, greyscale value and resolution on the resulting cell size measures were investigated. Variation in cell edge length was greatest for the Voronoi connection scheme, particularly at certain parameter combinations. Relationships between these parameters and cell size were identified and applied to an example, where the target was to control the minimum and maximum cell size. In both cases there was an 8% underestimation of cell area for target regions.

Citation

Brackett, D., Ashcroft, I., Wildman, R., & Hague, R. J. (2014). An error diffusion based method to generate functionally graded cellular structures. Computers and Structures, 138, https://doi.org/10.1016/j.compstruc.2014.03.004

Journal Article Type Article
Acceptance Date Mar 19, 2014
Online Publication Date Apr 18, 2014
Publication Date Jul 1, 2014
Deposit Date Aug 8, 2017
Publicly Available Date Aug 8, 2017
Journal Computers & Structures
Electronic ISSN 0045-7949
Publisher Elsevier
Peer Reviewed Peer Reviewed
Volume 138
DOI https://doi.org/10.1016/j.compstruc.2014.03.004
Keywords Cellular structure, Functional grading, Error diffusion, Additive manufacturing, Voronoi, Delaunay
Public URL http://eprints.nottingham.ac.uk/id/eprint/44744
Publisher URL https://doi.org/10.1016/j.compstruc.2014.03.004
Copyright Statement Copyright information regarding this work can be found at the following address: http://creativecommons.org/licenses/by/4.0

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Copyright Statement
Copyright information regarding this work can be found at the following address: http://creativecommons.org/licenses/by/4.0





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