Application of Ultrasonic Stress Measurement in the Evaluation of Bolt Fastening Force

2021 ◽  
Author(s):  
Zhang Wuneng ◽  
Li Jingfeng
Keyword(s):  
Stress Measurement ◽  
Ultrasonic Stress Measurement

Clamping Effect on the Welding Deformations in Dissimilar Welded Pipes (Joints) With Varied Thicknesses: Axial and Radial Shrinkage

2020 ◽  
Author(s):  
Bridget Kogo ◽  
Bin Wang ◽  
Mahmoud Chizari
Keyword(s):  
Residual Stress ◽  
Finite Element ◽  
Residual Stresses ◽  
Finite Element Simulation ◽  
Stress Measurement ◽  
Vertical Displacement ◽  
Hole Drilling ◽  
Element Simulation ◽  
Radial Shrinkage ◽  
Ultrasonic Stress Measurement

Abstract This study investigates and evaluates the welding residual stresses and deformations in the dissimilar material MSSS metals in order to verify the clamping effect on the residual stresses and deformations and entails comparison with the finite element simulation, the critically reflected longitudinal ultrasonic stress measurement and the hole-drilling residual stresses in a Butt-welded plate courtesy of Javadi et al [1]. The angular shrinkage measurement and vertical displacement were used to achieve this objective. The outcome of the study proved that the measurement of residual stress using protractor is an effective way of differentiating the influence of clamps on the longitudinal stresses.

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