LOW CYCLE FATIGUE BEHAVIOR UNDER BIAXIAL STRAIN DISTRIBUTION

Abstract

The paper presents a linear cumulative damage theory, macroscopically considering elastic and plastic straining, and accounting for biaxiality through the von Mises theory for combined strains. Experimentation on SAE 4340 steel alloy supported this damage hypothesis and confirmed the associated exponential relationship between elastic strains with cyclic life and plastic strains with cyclic life. A limited evaluation of an aluminum casting material, C-355-T61, also supported this exponential dependency. Notching did not significantly alter this low cycle fatigue behavior.

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Document Details

Document Type
Technical Report
Publication Date
Sep 01, 1967
Accession Number
AD0827214

Entities

People

  • Joseph L. Mattavi

Organizations

  • United Technologies Corporation

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Alloys
  • Aluminum Alloys
  • Chemical Composition
  • Coordinate Systems
  • Equations
  • Materials
  • Mechanical Properties
  • Mechanics
  • Plastic Flow
  • Pressure Vessels
  • Residual Stress
  • Shear Stresses
  • Strain Hardening
  • Stress Strain Relations
  • Stresses
  • Tensile Strength
  • Yield Strength

Readers

  • Materials Science (Mechanical Engineering).
  • Structural Dynamics.