Accession Number:

ADA386694

Title:

AASERT: Constitutive and Failure Behavior of Granular Materials

Descriptive Note:

Final rept. 1 Jul 1997-30 Jun 2000

Corporate Author:

GEORGIA INST OF TECH ATLANTA SCHOOL OFMECHANICAL ENGINEERING

Personal Author(s):

Report Date:

2000-06-01

Pagination or Media Count:

5.0

Abstract:

This project provides support for graduate and undergraduate students to conduct research on the dynamic behavior of concrete and mortar over a range of loading rates and under multiaxial states of stress. The objective of this research is to obtain material response data and constitutive characterization for these materials at strain rates of up to 105 S-1, to analyze the evolution of load-carrying and energy absorption capacities, and to understand deformation and failure mechanisms under high pressures and high strain rates, such as fragmentation, comminution and granular flow. The students investigations have focused on 1 the dynamic response of the G -mix concrete under impact conditions, 2 the effect of composite microstructure and aggregate reinforcement on the material stress-carrying capacity. and 3 the failure behavior of mortar under conditions of normal plate impact. Academic achievements for this project have been described in the final report for the parent grant dated December 31, 1999. The activities under the AASERT grant are summarized here.

Subject Categories:

  • Ceramics, Refractories and Glass
  • Construction Equipment, Materials and Supplies

Distribution Statement:

APPROVED FOR PUBLIC RELEASE