Mechanics of Granular Materials: Experimentation and Simulations for Determining the Compressive and Shear Behaviors of Sand at Granular and Meso Scales

Abstract

We present the results of experiments conducted to study the compressive and shear behavior of sand. Static and dynamic studies on the compression of sand grains were conducted. Nanoindentation was performed on single grains on sand of different sizes in order to determine the elastic and fracture properties of individual sand grains. Finite Element method (FEM) was used to solve the inverse problem so as to obtain the material properties from the load-displacement curves obtained from nanoindentation experiments. We also report the results of quasi-static compression tests conducted on sand held in a passive confinement. An in-house built compression fixture enabled the compression of sand grains up to axial stresses as high as 3 GPa.

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Document Details

Document Type
Technical Report
Publication Date
Sep 30, 2011
Accession Number
ADA563780

Entities

People

  • Fang Wang
  • Hongbing Lu
  • Huiyang Luo
  • Ranga Komanduri
  • Vijay Subramanian
  • William L. Cooper

Organizations

  • Oklahoma State University–Stillwater

Tags

Communities of Interest

  • Advanced Electronics
  • Air Platforms
  • Energy and Power Technologies
  • Weapons Technologies

DTIC Thesaurus Topics

  • Chemical Elements
  • Chemistry
  • Crystal Structure
  • Elastic Properties
  • Finite Element Analysis
  • Grain Size
  • Measurement
  • Mechanical Properties
  • Mechanics
  • Modulus Of Elasticity
  • Particle Size
  • Plastic Properties
  • Shear Stresses
  • Stiffness
  • Stress Strain Relations
  • Stresses
  • X-Ray Computed Tomography

Readers

  • Computational Fluid Dynamics (CFD)
  • Geotechnical Engineering.
  • Materials Science (Mechanical Engineering).