Experimental studies on the impact properties of auxetic materials

LIM, T. C., ALDERSON, Andrew and ALDERSON, K. L. (2013). Experimental studies on the impact properties of auxetic materials. Physica status solidi (b), 251 (2), 307-313.

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Abstract

This paper reports an experimental investigation on the effect of auxeticity towards impact loads. Both conventional and auxetic polyurethane (PU) foams were subjected to impact drop tests, and the damaged surfaces were visually inspected. Although it is known that auxetic materials resist indentation due to densification along the load line, experimental impact tests on conventional and auxetic PU foams reveal that auxetic foams are not necessarily advantageous over conventional ones for very high impact. This paper proposes a geometrical model that resembles the microstructure of auxetic foams, as well as elucidates both the auxetic behavior and the limiting strength at high impact.

Item Type:	Article
Research Institute, Centre or Group - Does NOT include content added after October 2018:	Materials and Engineering Research Institute > Modelling Research Centre
Identification Number:	https://doi.org/10.1002/pssb.201384249
Page Range:	307-313
Depositing User:	Ann Betterton
Date Deposited:	10 Dec 2014 12:42
Last Modified:	18 Mar 2021 19:00
URI:	https://shura.shu.ac.uk/id/eprint/8983

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