Advances in analysis of total uncertainties in a semi‐invasive residual stress measurement method

Strain ◽  
2020 ◽  
Author(s):  
Sayeed Hossain ◽  
Gang Zheng ◽  
Devkumar Goudar
Keyword(s):  
Residual Stress ◽  
Measurement Method ◽  
Stress Measurement ◽  
Residual Stress Measurement

Residual Stress Measurement Method Using Ultrasonic Acoustic Velocity

2019 ◽  
Vol 7 (1) ◽  
pp. 33-40
Author(s):  
Hee Jun Kim ◽  
Mo Youn Lee ◽  
Ho Bin Jeong ◽  
In Gyu Park ◽  
In Sik Cho
Keyword(s):  
Residual Stress ◽  
Measurement Method ◽  
Stress Measurement ◽  
Acoustic Velocity ◽  
Residual Stress Measurement

Investigation of the Performance of the Contour Residual Stress Measurement Method When Applied to Welded Pipe Structures

2009 ◽  
Author(s):  
R. J. Dennis ◽  
N. A. Leggatt ◽  
E. A. Kutarski
Keyword(s):  
Residual Stress ◽  
Residual Stresses ◽  
Measurement Method ◽  
Stress Measurement ◽  
Complex Structure ◽  
Cutting Process ◽  
Residual Stress Measurement ◽  
Contour Method ◽  
Hole Drilling ◽  
Welded Pipe

The ‘Contour Method’ is a relatively new relaxation method for residual stress measurement and may be seen as an evolution of established methods such as hole drilling. The general procedure when applying the Contour Method is cutting, measurement and calculation of residual stress normal to the cut plane using Bueckner’s principle of elastic superposition. That is the residual stresses are determined from the measured profile of a cut surface. While the Contour Method is simple in concept there are certain underlying issues relating to the cutting process that may lead to uncertainties in the measured results. Principally the issues are that of constraint and plasticity during the cutting process and the influence that they have on the measured residual stresses. Both of these aspects have been investigated in previous work by simulating the entire contour measurement method process using finite element techniques for ‘simple’ flat plate welded specimens. Here that work is further investigated and extended by application to a 316 Stainless Steel welded pipe structure containing a part-circumferential repair. This more complex structure and residual stress field is of significantly greater engineering interest. The key objective of this work is to ascertain the feasibility of and further our understanding of the performance of the Contour Method. Furthermore this work has the potential to provide a method to support the optimisation of the contour measurement process when applied to more complex engineering components.

Innovative Residual Stress Measurements by X-Ray Diffraction

2015 ◽  
Vol 812 ◽  
pp. 303-308 ◽  
Author(s):  
David Cseh ◽  
Valeria Mertinger ◽  
Márton Benke
Keyword(s):  
Residual Stress ◽  
Measurement Method ◽  
Stress Measurement ◽  
Residual Stress Measurement ◽  
Physical Metallurgy ◽  
X Ray Diffraction ◽  
X Ray ◽  
Stress Measurements ◽  
Stress Measuring ◽  
The University

An innovative X-ray diffractometer especially designed for residual stress measurements was deployed at the Institute of Physical Metallurgy, Metalforming and Nanotechnology of the University of Miskolc. The advantages of the equipment over the traditional X-ray diffraction stress measuring methods are presented through our experiences on industrial components with varying sizes, geometries and measurement requirements. The microstructural limitations of the X-ray diffraction based residual stress measurement method are also discussed.

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