Development of a miniature x-ray diffraction-based stress analysis system suitable for use on marine structures

1996 ◽  
Author(s):  
Michael E. Brauss ◽  
Glen V. Gorveatte ◽  
John F. Porter
Keyword(s):  
Stress Analysis ◽  
X Ray Diffraction ◽  
Marine Structures ◽  
X Ray ◽  
Analysis System

PRECIX, Robotic System for Residual Stress Analysis by X-Ray Diffraction

2011 ◽  
Vol 681 ◽  
pp. 202-208 ◽  
Author(s):  
Fabien Lefebvre ◽  
J.M. Le Roux ◽  
C. Charles ◽  
H. Pillière ◽  
E. Berthier ◽  
...  
Keyword(s):  
Residual Stress ◽  
Stress Analysis ◽  
Positioning System ◽  
X Ray Diffraction ◽  
Long Distance ◽  
X Ray ◽  
System A ◽  
External Reference ◽  
Residual Stress Analysis ◽  
Analysis System

In the last years, a new residual stress analysis system by X-ray diffractions has been developed by CETIM and INEL companies. This system called PRECIX is based on an industrial 6 axis robot. The technological performance is, like a 4 circle goniometer, to set together at the end of the sixth axes an x-ray source with a conventional size X-ray source, energy and position sensitive linear detector and an embedded long distance positioning system. PRECIX is an all-in-one system including all electrical and electronic items to perform residual stress analysis. This paper presents PRECIX in detail with a contactless positioning system, a new software getting a fully transparent utilisation for the users. Internal round-robin analysis with external reference samples and different geometries parts performed are presented to compare PRECIX results and other already validated X-ray diffraction systems.

Statistical Errors in X-Ray Triaxial Stress Analysis by Cos α Method

2021 ◽  
Vol 1016 ◽  
pp. 423-428
Author(s):  
Shoichi Ejiri ◽  
Hiroaki Ohba ◽  
Toshihiko Sasaki
Keyword(s):  
Stress State ◽  
Stress Analysis ◽  
Measurement Theory ◽  
Triaxial Stress ◽  
X Ray Diffraction ◽  
New Techniques ◽  
X Ray ◽  
Statistical Errors ◽  
Residual Stress State ◽  
Metal Materials

Currently, the sin2ψ method is established as an effective technique as how to measure the residual stress state of metal materials non-destructively by X-ray diffraction. In recent years, new X-ray stress measurements with two-dimensional detector are developed and spreading in the world. There is the cosα method as one of the new techniques. However, the research about the statistical errors in the method continues. The measurement theory of the cos α method is reviewed on the triaxial stress state. The triaxial stress analysis by the method is examined and discussed from a viewpoint of the derived errors for the determination.

Rietveld Texture and Stress Analysis of Thin Films by X-Ray Diffraction

2002 ◽  
Vol 408-412 ◽  
pp. 1603-1608 ◽  
Author(s):  
Luca Lutterotti ◽  
Siegfried Matthies ◽  
Daniel Chateigner ◽  
Sandro Ferrari ◽  
Jesús Ricote
Keyword(s):  
Thin Films ◽  
Stress Analysis ◽  
X Ray Diffraction ◽  
X Ray

Residual stress analysis in aged graphite/PMR-15 composites using X-ray diffraction

2006 ◽  
Vol 421 (1-2) ◽  
pp. 1-8 ◽  
Author(s):  
B. Benedikt ◽  
M. Lewis ◽  
P. Rangaswamy ◽  
M. Kumosa ◽  
P. Predecki ◽  
...  
Keyword(s):  
Residual Stress ◽  
Stress Analysis ◽  
X Ray Diffraction ◽  
X Ray ◽  
Residual Stress Analysis
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