Fatigue Life Prediction in Thick-Walled Cylinders with Complex Residual Stresses

Abstract

The large variation in stress intensity factors corresponding to various material models for a single, radial, straight-fronted crack in a pressurized, partially autofrettaged cylinder leads to a drastic difference in the fatigue life predictions. None of the predicted lives agree with experimental results. Possible explanations of the discrepancy are given and corresponding correction factors are introduced. The predicted lives based on ther corrected stress intensity ranges are reasonably close to a set of well- documented experimental results of Throop and Fujczak. Keywords: Fatigue life, Radial crack, Thick-walled cylinder, Stress-intensity range, Shape factors, Negative K-Factor.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Jul 01, 1987
Accession Number
ADA183599

Entities

People

  • P. C. Chen
  • S. L. Pu

Organizations

  • United States Army Armament Research, Development and Engineering Center

Tags

Communities of Interest

  • Air Platforms
  • Energy and Power Technologies
  • Weapons Technologies

DTIC Thesaurus Topics

  • Diameters
  • Engineering
  • Experimental Data
  • Fatigue Life
  • Fracture (Mechanics)
  • Geometry
  • Internal Pressure
  • Materials
  • Mechanics
  • Military Research
  • Residual Stress
  • Shape
  • Strain Hardening
  • Stress Intensity Factors
  • Three Dimensional
  • Two Dimensional
  • Walls

Fields of Study

  • Engineering

Readers

  • Materials Science (Mechanical Engineering).
  • Mechanical Engineering/Mechanics of Materials.