Utilising Parametric Customisation to Translate Auxetic Structure Theory into Additively Manufactured Multimaterial Performative Geometries

Brittany Mark

presentation by Brittany Mark, Victoria University of Wellington at online 4D Printing & Meta Materials Conference, May 26, 2020, 09:00 – 12:00 CET.

Auxetic Structures are a class of Metamaterials uniquely characterised by their Negative Poissons Ratio, that is when a lateral force is applied they expand longitudinally, becoming thicker and stronger, perpendicular to the strain. This counterintuitive behaviour has many enhanced behavioural properties, our research has specifically focused on their response to impact forces for sports protection scenarios.

Additive Manufacturing using the Stratasys J750 multimaterial printer allows us to print reactive physical properties of Auxetic Structures, manipulated through generative programming. This parametric customisation of the internal topology, materiality and subsequent 4D printing has the potential for geometries to be uniquely designed for pre-determined impact scenarios.

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