University of Illinois Urbana-Champaign

Two-phase densification of cohesive granular aggregates

Gioia, Gustavo; Cuitiño, Alberto M.

Permalink

https://hdl.handle.net/2142/254

Description

Title
Two-phase densification of cohesive granular aggregates
Author(s)
  • Gioia, Gustavo
  • Cuitiño, Alberto M.
Issue Date
2001-05
Keyword(s)
granular materials
Abstract
When poured into a container, cohesive granular materials form low-density, open granular aggregates. If pressed upon with a ram, these aggregates densify by particle rearrangement. In this paper we introduce experimental evidence to the effect that particle rearrangement is a spatially heterogeneous phenomenon that occurs in the form of a phase transformation between two configurational phases of the granular aggregate. We then show that the energy landscape associated with particle rearrangement is consistent with our interpretation of the experimental results. Our conclusions are relevant to many engineering processes and natural phenomena.
Publisher
Department of Theoretical and Applied Mechanics (UIUC)
Series/Report Name or Number
TAM Reports 970
ISSN
0073-5264
Type of Resource
text
Language
en
Permalink
http://hdl.handle.net/2142/254

Owning Collections

Technical Reports - Theoretical and Applied Mechanics (TAM) PRIMARY
TAM technical reports include manuscripts intended for publication, theses judged to have general interest, notes prepared for short courses, symposia compiled from outstanding undergraduate projects, and reports prepared for research-sponsoring agencies.