University of Illinois Urbana-Champaign

Two-Phase Densification of Cohesive Granular Aggregates

Gioia, Gustavo; Cuitiño, Alberto M.; Zheng, S.; Uribe, T.

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https://hdl.handle.net/2142/985

Description

Title
Two-Phase Densification of Cohesive Granular Aggregates
Author(s)
  • Gioia, Gustavo
  • Cuitiño, Alberto M.
  • Zheng, S.
  • Uribe, T.
Issue Date
2002
Keyword(s)
Granular materials
Abstract
When poured into a container, cohesive granular materials form low-density, open granular aggregates. If pressure is applied to these aggregates, they densify by particle rearrangement. Here we introduce experimental and computational results suggesting that densification by particle rearrangement occurs in the form of a phase transition between two configurational phases of the aggregate. Then we show that the energy landscape associated with particle rearrangement is nonconvex and therefore consistent with our interpretation of the experimental and computational results. Our conclusions are relevant to many technological processes and natural phenomena.
Publisher
American Physical Society
Type of Resource
text
Language
en
Permalink
http://hdl.handle.net/2142/985
DOI
https://doi.org/10.1103/PhysRevLett.88.204302
Has Version(s)
Previously released as TAM Report 970. http://hdl.handle.net/2142/254.
Copyright and License Information
Copyright owned by American Physical Society 2002.

Owning Collections

Published Papers - Theoretical and Applied Mechanics (TAM) PRIMARY
Papers published by faculty in Theoretical and Applied Mechanics