A Composite Grating for Moire Interferometry.

Abstract

The theoretical background and the experimental verification of a new composite grating with two different grating densities, which was developed for simultaneous small and large displacement measurements fo a single specimen using moire interferometry, are presented in this paper. A composite grating with line densities of 1200 and 300 lines/mm is then used to study the changes in the displacement field and the approximate J-integral values of a 5052-H32 aluminum, single edge notched (SEN) specimen under increasing load.

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Document Details

Document Type
Technical Report
Publication Date
Jul 01, 1987
Accession Number
ADA186330

Entities

People

  • Albert S. Kobayashi
  • B. S. Kang
  • F. X. Wang

Organizations

  • University of Washington

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Aeronautics
  • Aluminum
  • Astronautics
  • Composite Materials
  • Crack Tips
  • Displacement
  • Engineering
  • Fracture (Mechanics)
  • Interferometry
  • J Integrals
  • Laser Beams
  • Lasers
  • Materials
  • Measurement
  • Mechanical Engineering
  • Mechanics
  • Universities

Fields of Study

  • Physics

Readers

  • Materials Science (Mechanical Engineering).
  • Optical Physics and Photonics.