Accession Number:

ADA191927

Title:

Micromechanical Modeling of Granular Soil at Small Strain by Arrays of Elastic Spheres.

Descriptive Note:

Interim rept. 6 May 86-5 May 87,

Corporate Author:

RENSSELAER POLYTECHNIC INST TROY NY DEPT OF CIVIL ENGINEERING

Personal Author(s):

• Petrakis, Emmanuel
• Dobry, Ricardo

Report Date:

1987-09-28

Pagination or Media Count:

300.0

Abstract:

The need for a micromechanical approach to modeling the stress-strain response of granular soil is discussed and justified. This work focuses on the small shear strain behavior, and investigates the validity of modeling analytically uniform, rounded-grained quartz and by arrays of identical elastic, rough, quartz spheres. As a first step, the stress-strain properties of six regular arrays of spheres are studied in some detail, with focus on isotropic and biaxial boundary loading. Keywords Particular mechanics Regular arrays of spheres Self consistent method Stress-strain relationships Isotropy, Transverse isotropy Small strains Threshold strainP-waves Shear modulus.

Descriptors:

• *SPHERES
• *STRESS STRAIN RELATIONS
• *SOILS
• ARRAYS
• BEHAVIOR
• BIAXIAL STRESSES
• BOUNDARIES
• CONSISTENCY
• ELASTIC PROPERTIES
• MODELS
• QUARTZ
• RESPONSE
• SHEAR STRENGTH
• STRAIN(MECHANICS)
• VALIDATION

Subject Categories:

• Soil Mechanics
• Mechanics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE