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Negative Poisson ratio materials: recent applications from the literature

Papadakis Konstantinos

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Summary

Auxetic materials are a subcategory of meta-materials that provide a negative Poisson ratio (NPR) and tend to expand under monoaxial tension. The specific properties of materials with a negative Poisson ratio is usually a result of the mechanisms of their microstructure’s deformation. According to the mechanism, standard auxetic materials can be classified as re-entrant structure materials, rotating units or rigid materials, elastic unstable materials, chiral structures and much more that will be listed in detail.The purpose of the following work is to provide a detailed list of available types of materials based on the most recent and scientifically substantiated publications. In particular, the already known and applied uses of auxetic materials for the time being, as well as their possible future applications based on the newly emerging microstructure properties of the materials falling into this category, will be analyzed.The method used for this review is the advanced electronic search of the last twenty years’ articles related to materials that present a negative Poisson ratio in the Google scholar electronic search engine.As it turned out, auxetic materials are already widely used in many areas of engineering. They are used by matress and furniture manufacturing to medical technology as ancillary equipment in highly demanding applications and in sportswear and orthopedic industry. Most importantly, as evidenced by this review, incessant research interest and growing technological prospects are result in more and more proposals for new materials with competitive properties that make them potentially ideal materials for future applications in aerospacing, building construction and anti-seismic protection protection.

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