Abstract：
:Auxetic foams continue to interest researchers owing to their unique and enhanced properties. Existing studies attest to the importance of fabrication mechanisms and parameters. However, disparity in thermo-mechanical parameters has left much debate as to which factors dominate fabrication output quality. This paper provides experimental, computational, and statistical insights into the mechanisms that enable auxetic foams to be produced, using key parameters reported within the literature: porosity; heating time; and volumetric compression ratio. To advance the considerations on manufacturing parameter dominance, both study design and scale have been optimised to enable statistical inferences to be drawn. Whilst being unusual for a manufacturing domain, such additional analysis provides more conclusive evidence of auxetic properties and highlights the supremacy of volumetric compression ratio in predicting Poisson's ratio outcomes in the manufacture process. Furthermore statistical results are exploited to formulate key recommendations for those wishing to maximise/optimise auxetic foam production.
journal_name
Sci Repjournal_title
Scientific reportsauthors
Critchley R,Smy V,Corni I,Wharton JA,Walsh FC,Wood RJK,Stokes KRdoi
10.1038/s41598-020-75298-wsubject
Has Abstractpub_date
2020-10-27 00:00:00pages
18301issue
1issn
2045-2322pii
10.1038/s41598-020-75298-wjournal_volume
10pub_type
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