Elastic-Plastic Analysis of a Plate of Strain Hardening Material with a Central Circular Hole - Comparison of Experiment with Finite Element Analysis Containing the Unified Constitutive Material Model.

Abstract

This report presents an experimental validation of elastic-plastic finite element stress analysis, using a unified constitutive model to describe the plastic response. The validation was done by experimentally measuring the elastic-plastic strain distribution around a circular hole in a flat plate under tensile loading and comparing it with that produced by a finite element analysis of the specimen using the unified constitutive model. The validation involved strain measurements using both strain gauges and full-field photoelasticity. The unified constitutive model was found to provide a significant improvement over classical plasticity modeling for the case of monotonic loading. A similar validation for cyclic plasticity has not yet been undertaken.

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Document Details

Document Type
Technical Report
Publication Date
Feb 01, 1997
Accession Number
ADA324100

Entities

People

  • Robert B. Allan

Organizations

  • Defence Science and Technology Group

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Aircraft Equipment
  • Aircrafts
  • Airframes
  • Department Of Defense
  • Finite Element Analysis
  • Gages
  • Hardening
  • Materials
  • Mechanical Working
  • Mechanics
  • Residual Stress
  • Strain Gages
  • Strain Hardening
  • Stress Strain Relations
  • Stresses
  • Structural Integrity
  • Test Methods

Fields of Study

  • Engineering

Readers

  • Computational Modeling and Simulation
  • Structural Health Monitoring of Composite Structures.