Accession Number:
ADA199999
Title:
Deformation Behavior of Sands under Cyclic Loading - A Micro-Structural Approach
Descriptive Note:
Final rept. 1 Apr 1986-31 Aug 1988
Corporate Author:
MASSACHUSETTS UNIV AMHERST DEPT OF CIVIL ENGINEERING
Personal Author(s):
Report Date:
1988-09-01
Pagination or Media Count:
82.0
Abstract:
The overall objective of this research is to develop a constitutive model for granular materials accounting for its micro-structure. The project focussed on the theoretical development of stress-strain relationship from a micro-mechanics approach, the law governing the force-displacement behavior at a contact under a general cyclic loading condition, and the mathematical characterization of the packing structure in the form of fabric tensor of a granular assembly. Experimental tests were conducted on rod assemblies in a directional shear box to verify the developed theory. Analytical expressions were obtained for the stiffness constants of anisotropic granular assemblies.
Descriptors:
- *SAND
- *GEOLOGY
- MICROSTRUCTURE
- ACCOUNTING
- EXPERIMENTAL DESIGN
- LOADS(FORCES)
- DEFORMATION
- STIFFNESS
- DISPLACEMENT
- TEST METHODS
- CYCLES
- BOXES
- MECHANICS
- SOILS
- MATHEMATICAL ANALYSIS
- CONSTANTS
- FABRICS
- PACKAGING
- TENSORS
- BEHAVIOR
- RODS
- FORCE(MECHANICS)
- DIRECTIONAL
- GRANULES
- SHEAR PROPERTIES
- STRESS STRAIN RELATIONS
Subject Categories:
- Geology, Geochemistry and Mineralogy
- Mechanics