Powder Compaction

By Chen Shang1; Yuqi Fang1; Marcial Gonzalez1; Caroline Baker1

1. Purdue University

This tool simulates the mechanical behavior of a binary mixture during compaction

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Archive Version 2.2.1
Published on 16 May 2016 All versions

doi:10.4231/D39G5GF5P cite this

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Tools

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Abstract

This tool calculates the microstructure evolution of compressible granular systems at high levels of confinement.

The microstructure evolution is determined from three-dimensional particle mechanics static calculations of noncohesive frictionless monodispersed granular systems comprised by weightless spherical particles with radius d=0.440mm.

Two different elastic materials are considered and the die-compaction of mixtures of different volume fraction can be simulated. The walls of the cylindrical container and of the punches are assumed rigid.

Study the effect of
  - die size with respect to particle size (D/d),
  - material properties (Young's modulus and Poisson's ratio), and
  - mixture volume fraction
on statistical features of
  - the punch and die-wall pressures,
  - the mechanical coordination number, and
  - the network of contact forces.

Also explore the effect of nonlocal mesoscopic deformations characteristic of confined granular systems by using a nonlocal contact formulation. The nonlocal contact formulation remains predictive at high levels of confinement by removing the classical assumption that contact between particles are formulated locally as independent pair-interactions.

 

Powered by

PCMahc (Particle Contact Mechanics at High Confinement)

Credits

Acknowledgement: The following experts from the HUBzero Team have provided valuable technical input for this project, Steven Clark, Leif Delgass and Derrick Kearney.

References

Gonzalez, M., Cuitino, A.M. (2014). Microstructure evolution of compressible granular systems under large deformations.

Gonzalez, M, Cuitino, A.M. (2012). A nonlocal contact formulation for confined granular systems. Journal of the Mechanics and Physics of Solids 2012; 60, 333-350

Cite this work

Researchers should cite this work as follows:

  • Chen Shang, Yuqi Fang, Marcial Gonzalez, Caroline Baker (2019), "Powder Compaction," https://nanohub.org/resources/gscompaction. (DOI: 10.4231/D39G5GF5P).

    BibTex | EndNote

Tags

  1. binary polydisperse mixture
  2. compaction
  3. granular system
  4. Hertz Theory
  5. materials science
  6. NCN Group - Materials Science
  7. nonlocal contact formulation
  8. powder compaction