Laser Speckle Interferometric Thermoelasticity

Abstract

This report presents the theory for using laser speckle interferometry for making measurements in thermoelasticity problems. General thermoelastic theory, laser speckle interferometric theory, thermal stress deformation of thin plates, and numerical approximations to the thermostress equations are all projected. Two experimental examples are presented which involve the heating of a circular flat plate and the uniform heating of a metallic bar. Interferometrically obtained temperature measurements are compared with thermocouple data.

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Document Details

Document Type
Technical Report
Publication Date
May 30, 1980
Accession Number
ADA092638

Entities

People

  • John A. Schaeffel Jr.

Organizations

  • United States Army Aviation and Missile Command

Tags

Communities of Interest

  • Air Platforms
  • Weapons Technologies

DTIC Thesaurus Topics

  • Cartesian Coordinates
  • Climate Change
  • Computers
  • Copper
  • Elastic Properties
  • Equations
  • Information Processing
  • Interferometry
  • Jet Propulsion
  • Least Squares Method
  • Materials
  • Measurement
  • Military Research
  • Spearography
  • Stresses
  • Thermal Expansion
  • Thermal Stresses

Fields of Study

  • Physics

Readers

  • Calculus or Mathematical Analysis
  • Combustion and Flow Dynamics.
  • Optical Physics and Photonics.

Technology Areas

  • Directed Energy