Interferometric Measurement of Strains and Displacements in Engine Components,
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 lines/mm, and 2) a coarser grating of 40 lines/mm. 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.
Document Details
- Document Type
- Technical Report
- Publication Date
- Nov 01, 1986
- Accession Number
- ADP005545
Entities
People
- Carlos E. Ruiz
- D. Post
- P. H. Webb
Organizations
- University of Oxford