PARTICLE CONTACTS IN DISCRETE MATERIALS DISCUSSION AND CLOSURE

Holtz takes issue with the author's contention the product of the number of contacts per particle and the porosity is approximately 3 by siting studies by Odo and Marsal where the product was significantly less than three, especially for looser packings. The authors reply that they did not include Odo's in their analysis since his research concerned packings of glass spheres made under special condition and hence would not be representative of soil particles in the real world (The average number of contacts per particle was only 1.5.). Marsal's data represent only rough estimates of the average number of contacts per particle, having been obtained with road boulders. Gourbes warns that the viscosity of the paint may introduce false contacts. The authors concede this and suggest that the pattern depicted on the surface of the particles after shearing may provide a vertification for the true existence of the (initially circular) contacts.

Availability:
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Corporate Authors:
American Society of Civil Engineers

345 East 47th Street
New York, NY United States 10017-2398
Discussers:
- GOURVES, R
- Holtz, R D
Publication Date: 1981-10

Media Info

Features: Figures; References; Tables;
Pagination: p. 1437-40
Serial:
- Journal of Geotechnical and Geoenvironmental Engineering
- Volume: 107
- Issue Number: GT10
- Publisher: American Society of Civil Engineers
- ISSN: 1090-0241
- Serial URL: http://ojps.aip.org/gto

Subject/Index Terms

TRT Terms: Accuracy; Discrete systems; Experiments; Granular materials; Paint; Particles; Porosity; Simulation; Structural analysis; Viscosity
Old TRIS Terms: Contact; Discrete elements
Subject Areas: Geotechnology; Highways; I42: Soil Mechanics;

Filing Info

Accession Number: 00345142
Record Type: Publication
Report/Paper Numbers: ASCE 16585 Proceeding
Files: TRIS
Created Date: Jan 29 1982 12:00AM