The dynamic behaviour of a modified polyurethane resin |

Issue		Volume 2, 2009 DYMAT 2009 - 9th International Conference on the Mechanical and Physical Behaviour of Materials under Dynamic Loading


Page(s)		1081 - 1087
Section		Micro-Structural Effects
DOI		10.1051/dymat/2009151
Published online		15 September 2009

DYMAT 2009 (2009) 1081-1087
DOI: 10.1051/dymat/2009151

The dynamic behaviour of a modified polyurethane resin

G.J. Appleby-Thomas¹, P.J. Hazell¹, C. Stennett¹, G. Cooper¹ and R. Cleave²

¹ Cranfield Defence and Security, Cranfield University, Shrivenham, Swindon, SN6 8LA, UK
² Hamilton Erskine Ltd., 17 Moss Road, Ballygowan, County Down, BT23 6JQ, UK

Published online: 15 September 2009

Abstract
The dynamic response of both a pure and nano-reinforced polyurethane replacement resin (PRR) have been investigated using plate impact techniques. Similar U_P–U_S Hugoniot equations of state have been established for both materials, despite the altered cross-linking associated with the addition of inorganic polyhedral oligomeric silsesquioxane (POSS) blocks of c.1.5 nm size to the resin matrix. At higher particle velocities a similar U_P–U_S response to that of polyurethane from the literature was observed. However, at lower particle velocities a non-linear response was noted in both forms of PRR, similar to that observed for polymers elsewhere. Ultrasonic measurements were also undertaken and indicated the presence of two distinct phases in the reinforced elastomer.

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