Elastic-Plastic Deformation in Cracked Solids and Ductile Fracture Criterion.

Abstract

The main objectives of the program are to study crack tip stresses and crack tip deformation, and to use the findings of these studies to investigate the fractures of ductile and tough materials. Crack tip displacement and strain fields were measured with the moire method, and crack tip stress, displacement, and strain fields were calculated with the finite elements method. The measured displacement and strain fields agree well with the finite element calculations. The results were used to develop the direct correspondence method of evaluating fracture toughness of ductile tough materials and were also to analyze deformation mode of fatigue crack growth. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1982
Accession Number
ADA110805

Entities

People

  • H. W. Liu

Organizations

  • Syracuse University

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Aluminum Alloys
  • Continuum Mechanics
  • Creep
  • Finite Element Analysis
  • Flow Fields
  • Geometry
  • Materials
  • Materials Science
  • Mechanical Properties
  • Mechanics
  • Plastic Deformation
  • Stress Intensity Factors
  • Stress Strain Relations
  • Stresses
  • Three Dimensional
  • Two Dimensional
  • Yield Strength

Fields of Study

  • Engineering

Readers

  • Materials Science (Mechanical Engineering).