RESIDUAL STRESS MEASUREMENT AND ANALYSIS USING ULTRASONIC TECHNIQUES

A TECHNIQUE WHICH UTILIZES ULTRASONIC RADIATION HAS BEEN DEVELOPED TO MEASURE THE MAGNITUDE AND DIRECTION OF RESIDUAL STRESSES IN METAL. THE VELOCITIES OF ULTRASONIC WAVES IN MATERIALS ARE MEASURED AS THE TIME TO TRAVEL A FIXED PATH LENGTH, AND THE CHANGE IN TRANSIT TIME IS RELATED TO THE APPLIED STRESS. THE LINEAR RELATIONSHIP OBTAINED ALLOWS A PROCEDURE BASED ON THIS PRINCIPLE TO BE USED FOR THE MEASUREMENT OF RESIDUAL STRESS USING SURFACE WAVES AND SHEAR WAVES. A METHOD FOR PLOTTING STRESS PROFILES THROUGH A MATERIAL USING SURFACE WAVES USED VARYING FREQUENCIES FOR THE ULTRASONIC WAVE.

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  • Authors:
    • Noronha, P J
    • Chapman, J R
    • Wert, J J
  • Publication Date: 1973-5

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Filing Info

  • Accession Number: 00217327
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Aug 20 1973 12:00AM