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.

Subject Categories:

  • Geology, Geochemistry and Mineralogy
  • Mechanics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE