Accession Number:

ADP005545

Title:

Interferometric Measurement of Strains and Displacements in Engine Components,

Descriptive Note:

Corporate Author:

OXFORD UNIV (ENGLAND) DEPT OF ENGINEERING SCIENCE

Personal Author(s):

Report Date:

1986-11-01

Pagination or Media Count:

13.0

Abstract:

The strains and displacements in engine components, and in particular in interlocking joints, have been measured by means of two interferometric methods 1 high sensitivity Moire interferometry, using gratings with 1200 linesmm, and 2 a coarser grating of 40 linesmm. This paper describes the two methods and, compares the results to the predictions of a finite element program for a typical dovetail joint. Application of the technique to the assessment of fretting damage and to the lifting of dovetail joints is discussed.

Subject Categories:

  • Test Facilities, Equipment and Methods
  • Mechanics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE