Accession Number:

ADA324100

Title:

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.

Descriptive Note:

Technical rept.,

Corporate Author:

DEFENCE SCIENCE AND TECHNOLOGY ORGANIZATION CANBERRA (AUSTRALIA)

Personal Author(s):

Report Date:

1997-02-01

Pagination or Media Count:

47.0

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.

Subject Categories:

  • Mechanics
  • Attack and Fighter Aircraft

Distribution Statement:

APPROVED FOR PUBLIC RELEASE