Pulsed eddy current and ultrasonic data fusion applied to stress measurement

Stress measurement and its variation are key problems in the operating performance of materials. Stress can affect the material properties and the life of components. There are several destructive and nondestructive techniques that are used to measure stress. However, no single nondestructive testing (NDT) technique or method is satisfactory to fully assess stress. This paper presents an NDT data fusion method to improve stress measurement. An aluminum alloy 2024 specimen subjected to stress simulation is nondestructively inspected using pulsed eddy current and ultrasonic techniques. Following these nondestructive examinations, the information gathered from these two NDT methods has been fused using a suitable fuzzy combination operator. The results obtained with these processes are presented in this paper and their efficiency is discussed. It is shown that the fusion of NDT data with a suitable fuzzy operator can be adequate to improve the reliability of stress measurements.

[1]  Feng Yu,et al.  On the Influence of Cold Work on Eddy Current Characterization of Near-Surface Residual Stress in Shot-Peened Nickel-Base Superalloys , 2006 .

[2]  P. Withers,et al.  Residual stress. Part 1 – Measurement techniques , 2001 .

[3]  D. S. Hughes,et al.  Second-Order Elastic Deformation of Solids , 1953 .

[4]  L. Quintino,et al.  Data fusion in non destructive testing using fuzzy logic to evaluate friction stir welding , 2008 .

[5]  P. Withers,et al.  Residual stress and its role in failure , 2007 .

[6]  Yi Zhang,et al.  Conductivity tomography for non-destructive evaluation using pulsed eddy current with HTS SQUID magnetometer , 2003 .

[7]  Jérôme Idier,et al.  X-ray and ultrasound data fusion , 1998, Proceedings 1998 International Conference on Image Processing. ICIP98 (Cat. No.98CB36269).

[8]  A. Habibalahi,et al.  Forward to residual stress measurement by using pulsed eddy current technique , 2013 .

[9]  P. Nagy,et al.  The Effect of Hardness on Eddy Current Residual Stress Profiling in Shot-Peened Nickel Alloys , 2010 .

[10]  D Horn,et al.  NDE reliability gains from combining eddy-current and ultrasonic testing , 2000 .

[11]  Jian Lu,et al.  Determination of residual stress using critically refracted longitudinal waves and immersion mode , 2002 .

[12]  P. Withers,et al.  Noncontact evaluation of the dependency of electrical conductivity on stress for various Al alloys as a function of plastic deformation and annealing , 2010 .

[13]  Experimental Ultrasonic Assessment of Steel Induction Hardening by Measuring Two Distinct Times-of-Flight , 2013 .

[14]  Henri Walaszek,et al.  Microstructure Effect on the Lcr Elastic Wave for Welding Residual Stress Measurement , 2010 .

[15]  A. Bilge,et al.  Immersion ultrasonic technique for investigation of total welding residual stress , 2011 .

[16]  P. Nagy,et al.  Eddy Current Assessment of Near-Surface Residual Stress in Shot-Peened Nickel-Base Superalloys , 2004 .

[17]  W. A. Theiner,et al.  Structural and Residual Stress Analysis by Nondestructive Methods , 2014 .

[18]  Feng Yu,et al.  Dynamic Piezoresistivity Calibration for Eddy Current Nondestructive Residual Stress Measurements , 2005 .

[19]  G. S. Korzunin,et al.  On Possibility of Nondestructive Testing of the Grain Size in the Intermediate Stages of Manufacturing Electrical Steel , 2003 .

[20]  Donald T. McBride,et al.  Nondestructive testing techniques , 1992 .

[21]  T. Jayakumar,et al.  Measurement of residual stresses in austenitic stainless steel weld joints using ultrasonic technique , 2009 .

[22]  Peter B. Nagy,et al.  Eddy current residual stress profiling in surface-treated engine alloys , 2009 .

[23]  Petr Ekel,et al.  Decision making in a fuzzy environment and its application to multicriteria power engineering problems , 2007 .

[24]  Dario Vangi,et al.  Stress evaluation by pulse-echo ultrasonic longitudinal wave , 2001 .

[25]  Peter B. Nagy,et al.  High-frequency eddy current conductivity spectroscopy for residual stress profiling in surface-treated nickel-base superalloys , 2007 .

[26]  Pradeep Ramuhalli,et al.  Combining multiple nondestructive inspection images with a generalized additive model , 2008 .