AASERT: Constitutive and Failure Behavior of Granular Materials

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.

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Document Details

Document Type
Technical Report
Publication Date
Jun 01, 2000
Accession Number
ADA386694

Entities

People

  • Min Zhou

Organizations

  • Georgia Tech

Tags

Communities of Interest

  • Weapons Technologies

DTIC Thesaurus Topics

  • Absorption
  • Composite Materials
  • Concrete
  • Department Of Defense
  • Dynamic Response
  • Electron Microscopy
  • Engineering
  • Failure Mode And Effect Analysis
  • Granular Materials
  • High Pressure
  • Manufacturing
  • Materials
  • Mechanical Engineering
  • Payload
  • Scanning Electron Microscopy
  • Strain Rate
  • Students

Readers

  • Pavement Materials Engineering.
  • Structural Health Monitoring of Composite Structures.
  • Technical Research and Report Writing.