An error diffusion based method to generate functionally graded cellular structures

Brackett, D. and Ashcroft, I. and Wildman, R.D. and Hague, Richard J.M. (2014) An error diffusion based method to generate functionally graded cellular structures. Computers & Structures, 138 . pp. 102-111. ISSN 0045-7949

[img]
Preview
PDF - Requires a PDF viewer such as GSview, Xpdf or Adobe Acrobat Reader
Available under Licence Creative Commons Attribution.
Download (4MB) | Preview

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.

Item Type: Article
Keywords: Cellular structure, Functional grading, Error diffusion, Additive manufacturing, Voronoi, Delaunay
Schools/Departments: University of Nottingham, UK > Faculty of Engineering > Department of Chemical and Environmental Engineering
University of Nottingham, UK > Faculty of Engineering > Department of Mechanical, Materials and Manufacturing Engineering
Identification Number: 10.1016/j.compstruc.2014.03.004
Depositing User: Eprints, Support
Date Deposited: 08 Aug 2017 10:01
Last Modified: 08 Aug 2017 10:04
URI: http://eprints.nottingham.ac.uk/id/eprint/44744

Actions (Archive Staff Only)

Edit View Edit View