A General Fatigue Prediction Method Based on Neuber Notch Stresses and Strains

Abstract

A new combination of the Neuber parameter and stress-strain data is proposed and investigated for a completely general graphic analysis of cycle-by- cycle notch stress level. The proposed analysis is applied to two common aircraft structural materials, 2024-T4 and 7075-T6. Life to failure predictions based on the graphically derived notch stress levels compare very favorably with constant stress amplitude notched coupon results.

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Document Details

Document Type
Technical Report
Publication Date
Feb 01, 1971
Accession Number
AD0723631

Entities

People

  • John M. Potter

Organizations

  • Flight Dynamics Laboratory

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Air Force
  • Aircrafts
  • Aluminum Alloys
  • Amplitude
  • Compression
  • Experimental Data
  • Fatigue Life
  • Government Procurement
  • Hardening
  • Materials
  • Plastic Properties
  • Residual Stress
  • Spectra
  • Strain Hardening
  • Stress Concentration
  • Stress Strain Relations
  • Stresses

Readers

  • Mechanical Engineering/Mechanics of Materials.
  • Regression Analysis.