Total Residual Stress Measurement by Using Ultrasonic Technique

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Gazi University Journal of Science
Volume:24 Issue:1
Total Residual Stress Measurement by Using Ultrasonic Technique

Total Residual Stress Measurement by Using Ultrasonic Technique

Authors : Fatih UZUN, Ali BİLGE

Pages : 135-141

View : 22 | Download : 13

Publication Date : 2011-01-14

Article Type : Other Papers

Abstract :Ultrasonic technique is of paramount importance in residual stress measurement. The technique has many advantages than other residual stress measurement techniques. However, precision and determining acoustoelastic constants are main difficulties that are encountered. Based on the principle that source of the welding residual stress is welding heat, relation between thermal stress and ultrasonic wave velocity variations are investigated. By using their relation, a new attempt on determining welding residual stress is developed.
Keywords : Ultrasonic technique, Residual stress, Welding, Thermal stress

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