Development of a Third-Invariant Plasticity Theory for Concrete and Soils.

Abstract

A viscoplastic constitutive relation for frictional materials has been formulated and applied to concrete and soils. First and third invariants of both stress and strain are used instead of the more conventional second invariants employed in relations for metal plasticity. Detailed comparisons between theoretical and experimental data are made for a variety of paths involving weak concrete and sandy soils. For the soils, both static and dynamic behavior are considered. The model has been extended to incorporate cracking based on a maximum principal stress criterion. Proposed experimental and theoretical work will cover rate effects in concrete, the response of unsaturated clay, and interfaces between soil and concrete.

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Document Details

Document Type
Technical Report
Publication Date
Feb 01, 1984
Accession Number
ADA140001

Entities

People

  • H. L. Schreyer

Tags

Communities of Interest

  • Air Platforms
  • C4I
  • Ground and Sea Platforms
  • Weapons Technologies

DTIC Thesaurus Topics

  • Cracks
  • Elastic Properties
  • Engineering
  • Experimental Data
  • Materials
  • Materials Testing
  • Mechanical Properties
  • Mechanics
  • Modulus Of Elasticity
  • New Mexico
  • Plastic Properties
  • Shear Stresses
  • Strain Gages
  • Stress Strain Relations
  • Stresses
  • Tensile Stress
  • Test And Evaluation

Readers

  • Agricultural Chemistry/Soil Science
  • Mechanical Engineering/Mechanics of Materials.
  • Theoretical Analysis.