Deformation, Constitutive Behavior and Damage of Advanced Structural Materials Under Multiaxial Loading

Abstract

In the grant period just completed the metallurgical variables identified in the previous period have been addressed. Room temperature multiaxial testing of polycrystalline NiAl has been completed and high temperature experiments are being planned. In addition, compression testing of polycrystalline NiAl at room temperature has also been done. These experiments were included in the program to further investigate the results of the multiaxial experiments. The prime objective of these experiments is to differentiate damage and plasticity observed in this material under compression. Finite element analysis based on micromechanics will be done to study the stress distribution at the grain boundaries. Together, these experiments will form the basis for development of a constitutive model which takes into consideration crystal plasticity and damage.

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Document Details

Document Type
Technical Report
Publication Date
Apr 30, 1993
Accession Number
ADA274165

Entities

People

  • David L. Mcdowell
  • Ritesh P. Shah
  • Stephen D. Antolovich

Organizations

  • Georgia Tech

Tags

Communities of Interest

  • Air Platforms
  • Human Systems

DTIC Thesaurus Topics

  • Crystals
  • Engineering
  • Failure Mode And Effect Analysis
  • Finite Element Analysis
  • Grain Boundaries
  • High Temperature
  • Materials
  • Materials Engineering
  • Materials Science
  • Mechanical Properties
  • Mechanics
  • Plastic Deformation
  • Polycrystals
  • Shear Stresses
  • Single Crystals
  • Stress Strain Relations
  • Stresses

Readers

  • Materials Science (Mechanical Engineering).
  • Technical Research and Report Writing.