INTERPARTICLE CONTACT BEHAVIOR AND WAVE PROPAGATION

Deformation of granular materials upon loading involves particle rearrangement and particle deformation. Particle deformation is the overriding deformation mechanism at low strains, depending primarily on the interparticle contact response and material properties. Researchers studied the effect of different contact behaviors on wave velocity and attenuation. Materials were selected to highlight individual characteristics: elastic Hertzian contacts (steel spheres), viscoplastic deformations and rheological effects (lead shot), and brittle contacts (pellets made of a mixture of silica flour and kaolinite). This paper presents results of a test program designed to study the effect of contact response on the propagation of waves. Wave velocity and attenuation were measured during isotropic loading using a resonant column device at varying shear strains. A uniform quartz sand was tested for comparison purposes.

• Availability:
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• Corporate Authors:

  American Society of Civil Engineers

  345 East 47th Street
  New York, NY  United States  10017-2398
• Authors:
  • Cascante, Giovanni
  • Santamarina, J C
• Discussers:
  • Lopes, F R
• Publication Date: 1996-10

Language

• English

Media Info

• Features: Appendices; Figures; References; Tables;
• Pagination: p. 831-839
• Serial:
  • Journal of Geotechnical Engineering
  • Volume: 122
  • Issue Number: 10
  • Publisher: American Society of Civil Engineers
  • ISSN: 0733-9410

Subject/Index Terms

• TRT Terms: Brittleness; Deformation; Elasticity (Mechanics); Granular materials; Particles; Shear strain; Soil mechanics; Viscoplasticity; Wave motion
• Uncontrolled Terms: Attenuation
• Old TRIS Terms: Contact; Soil behavior
• Subject Areas: Geotechnology; Highways; I42: Soil Mechanics;

Filing Info

• Accession Number: 00730004
• Record Type: Publication
• Files: TRIS
• Created Date: Dec 29 1997 12:00AM