Impact deformation and rebound of wet granules

Research output: Contribution to journalArticle

Authors

Colleges, School and Institutes

Abstract

The impact behaviour of wet granules was studied by measuring their restitution coefficient and maximum contact area. A flat semi-infinite rigid target was used for this purpose and the impact and rebound speeds were recorded by using two high-speed cameras. Different granules were produced by varying the liquid to solid ratio, primary particle size, binder viscosity and granulation time. The data were compared with existing analytical models, which were found to provide an approximate description. However, it is clear that real granular collisions may involve a significantly greater complexity and this will require the refinement of such models. (C) 2004 Elsevier B.V. All rights reserved.

Details

Original languageEnglish
Pages (from-to)248-257
Number of pages10
JournalPowder Technology
Volume140
Issue number3
Publication statusPublished - 25 Feb 2004

Keywords

  • contact stress, restitution coefficient, rebound, impact, wet granule