Brittle-Ductible Failure Mechanics of Concrete and Mortar

Abstract

The final technical report summarizes the results of the research effort related to the behavior of concrete on the: - Experimental Level: Dilatancy and transition between brittle-ductile failure behavior in triaxial compression. - Micromechanical Level: Numerical failure simulation of composite specimens in tension and compression. Voronoi polygonization of two phase mortar-aggregate composite. Probing of simple constitutive hypotheses for the constituents. The numerical simulations depict the transition from distributed to localized failure when particle composites are subjected to tension and compression. The computational results show that tensile failure is definitely a surface-dominated process following fracture mechanics concepts in contrast to compressive failure. Failure mechanics of concrete in tension, Compression, Micromechanics, Matrix composite.

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Document Details

Document Type
Technical Report
Publication Date
Oct 14, 1988
Accession Number
ADA205173

Entities

People

  • Kaspar William
  • Stein Sture
  • Thomas Stankowski
  • Victor Saouma

Organizations

  • University of Colorado Boulder

Tags

Communities of Interest

  • Weapons Technologies

DTIC Thesaurus Topics

  • Composite Materials
  • Compressive Strength
  • Elastic Properties
  • Failure Mode And Effect Analysis
  • Fracture (Mechanics)
  • Geometry
  • Materials
  • Mechanics
  • Micromechanics
  • Microstructure
  • Physical Properties
  • Simulations
  • Stress Strain Relations
  • Stresses
  • Tensile Strength
  • Three Dimensional
  • Unloading

Fields of Study

  • Engineering

Readers

  • Computational Fluid Dynamics (CFD)
  • Mechanical Engineering/Mechanics of Materials.
  • Structural Health Monitoring of Composite Structures.