scholarly journals ROUND ROBIN TEST OF TOFD ULTRASONIC TESTING SYSTEMS FOR WELDED JOINTS OF STEEL BRIDGES

2006 ◽  
Vol 62 (4) ◽  
pp. 925-935 ◽  
Author(s):  
Chitoshi MIKI ◽  
Kazuhiro NISHIKAWA ◽  
Hiromi SHIRAHATA ◽  
Minoru TAKAHASHI
Keyword(s):  
Welded Joints ◽  
Ultrasonic Testing ◽  
Round Robin ◽  
Steel Bridges ◽  
Round Robin Test

Performance Evaluation Test of Automatic Ultrasonic Testing Systems for Welded Joints of Steel Bridges

2005 ◽  
Vol 33 (4) ◽  
pp. 12443 ◽  
Author(s):  
DR Petersen ◽  
RE Link ◽  
C Miki ◽  
N Kazuhiro ◽  
S Hiromi ◽  
...  
Keyword(s):  
Performance Evaluation ◽  
Welded Joints ◽  
Ultrasonic Testing ◽  
Steel Bridges ◽  
Evaluation Test

scholarly journals Recommendations for the measurement of residual stresses in welded joints by means of X-ray diffraction—results of the WG6-RR test

2020 ◽  
Author(s):  
Th. Nitschke-Pagel
Keyword(s):  
Residual Stresses ◽  
Boundary Conditions ◽  
Welded Joints ◽  
High Reliability ◽  
Measurement Techniques ◽  
Round Robin ◽  
X Ray Diffraction ◽  
Round Robin Test ◽  
X Ray

AbstractResidual stresses in welded joints are often of extended interest in order to evaluate unexpected failures or distortions. Since the possibilities to calculate residual stresses in welds are still strongly limited, the measurement techniques are still of great importance. Several measurement techniques with particular possibilities and limitations are available today where especially the different diffraction methods are used mostly. The material, weld type, and the size of the components are important for the quality of the results obtained with different methods as well as the environment where the measurements have to be carried out. The paper shall give an overview of the results of a round robin test on the application of XRD on butt welded joints which has been carried out in cooperation of different experienced laboratories. The results show the high reliability of XRD measurements in welds, if the measurements are performed under well-defined boundary conditions. The experiences can be used as a recommendation about useful measurement conditions the expectable quality of the results.

Comparison between Conventional and Performance Demonstration UT Method by Round Robin Test

2006 ◽  
Vol 321-323 ◽  
pp. 1754-1757
Author(s):  
Yong Sik Kim ◽  
Seung Han Yang ◽  
Byung Sik Yoon ◽  
Hee Jong Lee
Keyword(s):  
Power Plant ◽  
Nuclear Power Plant ◽  
Ultrasonic Testing ◽  
Nuclear Power ◽  
Round Robin ◽  
Round Robin Test ◽  
Examination Result ◽  
And Performance ◽  
Main Components ◽  
Performance Demonstration

The results of ultrasonic testing performed during in-service inspection period for main components of nuclear power plant are affected by the performance of each inspector. To enhance the inspection reliability, the more restrictive qualification is required. KEPRI established Korean performance demonstration (KPD) system for the ultrasonic testing personnel, equipment and procedure which applied to the piping examination of nuclear power plant. A round robin test was conducted to evaluate the reliability of examination result by comparing conventional (DAC) UT and performance demonstration (PD) UT method. Participants took detection/length sizing test and depth sizing test using DAC method and PD method. The results showed that the PD method was preciser and more accurate than the conventional DAC method in length and depth sizing regardless of field experience and PD qualification status.

Density Determination of Sintered Steel – Results of a Round Robin Test

2019 ◽  
Vol 56 (11) ◽  
pp. 731-746
Author(s):  
R. Peters ◽  
P. Beiss ◽  
S. Lindlohr
Keyword(s):  
Round Robin ◽  
Sintered Steel ◽  
Round Robin Test ◽  
Density Determination

Reconstruction of multiple cracks in an ECT round-robin test

2004 ◽  
Vol 19 (1-4) ◽  
pp. 399-404 ◽  
Author(s):  
Mihai Rebican ◽  
Noritaka Yusa ◽  
Zhenmao Chen ◽  
Kenzo Miya ◽  
Tetsuya Uchimoto ◽  
...  
Keyword(s):  
Round Robin ◽  
Multiple Cracks ◽  
Round Robin Test
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