Accession Number : ADA138930

Title :   A Review Study of Nondestructive Test Techniques for Residual Stresses in Aircraft Transparencies.

Descriptive Note : Final technical rept. Jun-Dec 82,

Corporate Author : DAYTON UNIV OH RESEARCH INST

Personal Author(s) : Raju,B B

PDF Url : ADA138930

Report Date : Jan 1984

Pagination or Media Count : 88

Abstract : The main objectives of this program are to conduct review studies on candidate nondestructive test techniques for determining residual stresses in aircraft transparencies; identify and recommend nondestructive test techniques having potential for further laboratory development and field use. The program consisted of three primary tasks: a comprehensive general literature review of over 150 publications on holography, x-rays, moire', scattered-light, thermal methods, ultrasonic techniques, acoustic emission, magneto-photoelasticity, integrated photoelasticity, laser diffraction, and eddy current techniques; a detailed literature review on scattered light photoelasticity, ultrasonic technique I based on the Rayleigh surface waves, ultrasonic technique II based on the ultrasonic energy reflection at a liquid-solid interface magneto-photoelasticity, and laser diffraction; detailed review studies on scattered-light techniques and ultrasonic techniques I and II. The studies revealed that the basic principles and experimental procedure of ultrasonic technique I based on Rayleigh surface waves is fairly well developed.

Descriptors :   *NONDESTRUCTIVE TESTING, *AIRFRAMES, *TRANSPARENCIES, *RESIDUAL STRESS, PHOTOELASTICITY, LASER APPLICATIONS, LIGHT SCATTERING, ULTRASONICS, HOLOGRAPHY, MOIRE EFFECTS, RAYLEIGH WAVES, SURFACE WAVES, CRAZING

Subject Categories : Aircraft
      Test Facilities, Equipment and Methods
      Solid State Physics

Distribution Statement : APPROVED FOR PUBLIC RELEASE