Errors Due to Counting Statistics in the Triaxial Strain (Stress) Tensor Determined by Diffraction.

Abstract

Knowledge of the errors in a diffraction measurement of residual strains and stresses is useful information, not only in its own right, but also because it permits automation of a measurement to an operator specified precision. There are three sources of these errors: (1) Instrumental effects; (2) Uncertainties in x-ray elastic constants; and (3) Errors in the diffraction peak position related to counting statistics. In this paper the errors are derived for the diffraction measurement of the three dimensional stress and strain tensor due to counting statistics.

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Document Details

Document Type
Technical Report
Publication Date
Jul 01, 1985
Accession Number
ADA158219

Entities

People

  • Jerome B. Cohen
  • P. Rudnik

Organizations

  • Northwestern University

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Biaxial Stresses
  • Data Sets
  • Diffraction
  • Equations
  • Geometry
  • Materials
  • Materials Science
  • Measurement
  • Military Research
  • New York
  • Residual Stress
  • Statistics
  • Stresses
  • Three Dimensional
  • Two Dimensional
  • United States
  • X Rays

Fields of Study

  • Physics

Readers

  • Adaptive Control and Estimation with Uncertainty in Dynamic Systems.
  • Materials Science and Engineering.
  • Mechanical Engineering/Mechanics of Materials.