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dc.contributor.authorGrima, Joseph N.-
dc.contributor.authorEvans, Kenneth E.-
dc.contributor.authorSmith, Christopher W.-
dc.identifier.citationGrima, J. N., Evans, K. E., & Smith, C. W. (2000). A novel mechanism for generating auxetic behaviour in reticulated foams : missing rib foam model. Acta Materialia, 48(17), 4349-4356.en_GB
dc.description.abstractFoams have previously been fabricated with a negative Poisson's ratio (termed auxetic foams). A novel model is proposed to explain this and to describe the strain-dependent Poisson's function behaviour of honeycomb and foam materials. The model is two-dimensional and is based upon the observation of broken cell ribs in foams processed via the compression and heating technique usually employed to convert conventional foams to auxetic behaviour. The model has two forms: the “intact” form is a network of ribs with biaxial symmetry, and the “auxetic” form is a similar network but with a proportion of cell ribs removed. The model output is compared with that of an existing two-dimensional model and experimental data, and is found to be superior in predicting the Poisson's function and marginally better at predicting the stress–strain behaviour of the experimental data than the existing model, using realistic values for geometric parameters.en_GB
dc.subjectFoamed materialsen_GB
dc.subjectChemical modelsen_GB
dc.subjectHoneycomb structuresen_GB
dc.titleA novel mechanism for generating auxetic behaviour in reticulated foams : missing rib foam modelen_GB
dc.rights.holderThe copyright of this work belongs to the author(s)/publisher. The rights of this work are as defined by the appropriate Copyright Legislation or as modified by any successive legislation. Users may access this work and can make use of the information contained in accordance with the Copyright Legislation provided that the author must be properly acknowledged. Further distribution or reproduction in any format is prohibited without the prior permission of the copyright holder.en_GB
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Scholarly Works - FacSciMet

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