Microplane Model for Fracture Analysis of Concrete Structures

Abstract

Dynamic fracture analysis of concrete structures necessitates a triaxial stress-strain relation that describes gradual strain-softening with reduction of tensile stress to zero. A new model which does that and is applicable under general loading, including rotating principal stress directions, is a proposed. It is based on accumulating stress relaxations due to microcracking from the planes of all orientation within the microstructure. Comparisons with tensile test data are given.

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Document Details

Document Type
Technical Report
Publication Date
May 01, 1983
Accession Number
ADP001715

Entities

People

  • Byung H. Oh
  • Zdeněk Bažant

Organizations

  • Northwestern University

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Air Force
  • Concrete
  • Cracks
  • Crystal Structure
  • Displacement
  • Materials
  • Mechanical Properties
  • Mechanics
  • Microstructure
  • Numerical Integration
  • Softening
  • Stiffness
  • Strain Hardening
  • Stress Strain Relations
  • Stresses
  • Tensile Stress

Fields of Study

  • Engineering

Readers

  • Computational Fluid Dynamics (CFD)
  • Mechanical Engineering/Mechanics of Materials.