Accession Number : AD0725748
Title : Techniques for Measuring Displacement Fields of Deformed Bodies Using Holographic Interferometry.
Descriptive Note : Technical rept. Sep 69-Sep 70,
Corporate Author : AIR FORCE FLIGHT DYNAMICS LAB WRIGHT-PATTERSON AFB OHIO
Personal Author(s) : Maddux,Gene E. ; Corwin,Richard R.
Report Date : MAR 1971
Pagination or Media Count : 45
Abstract : Holographic interferometry has reached a state of practical application wherein many different structural deformations have been recorded. Some of these recordings can be interpreted by casual observation while others require a detailed mathematical analysis to convert fringe patterns into displacement data. A few investigators have proposed different mathematical models for fringe formation resulting from surface displacements. Most of these models, however, do not adequately represent realistic structures. The report is concerned with examining these approaches and devising a systematic plan of investigating displacement determination for complex structures. (Author)
Descriptors : (*SHELLS(STRUCTURAL FORMS), NONDESTRUCTIVE TESTING), (*DEFORMATION, *STEREOPHOTOGRAPHY), LASERS, INTERFEROMETERS, LOADS(FORCES), CYLINDRICAL BODIES, STRESSES, VECTOR ANALYSIS
Subject Categories : Holography
Test Facilities, Equipment and Methods
Distribution Statement : APPROVED FOR PUBLIC RELEASE