Computational methods in eddy current crack detection at fastener sites in multi-layer structures

References

• Lindgren , E.A. , Knopp , J.S. , Aldrin , J.C. , Steffes , G.J. and Buynak , C.F. 2007 . Aging aircraft NDE: Capabilities, challenges, and opportunities . Rev. Prog. Quant. Nondestruct. Eval. , 26B : 1731 – 1738 .
   Google Scholar
• Hagemaier , D. and Steinberg , A. 1982 . Low-frequency eddy current inspection of aircraft structure . Mat. Eval. , 40 : 206 – 210 .
   Web of Science ®Google Scholar
• Hagemaier , D. , Bates , B. and Steinberg , A. 1988 . Aircraft eddy current subsurface crack inspection . Mat. Eval. , 46 : 518 – 522 .
   Web of Science ®Google Scholar
• Hagemaier , D. and Kark , G. 1997 . Eddy current detection of short cracks under installed fasteners . Mat. Eval. , 55 : 25 – 30 .
   Web of Science ®Google Scholar
• W.H. Lewis, B.D. Dodd, W.H. Sproat, and J.M. Hamilton, Reliability of nondestructive inspections—Final Report, Report No. SA-ALC/MEE 76-6-38-1, United States Air Force, San Antonio Air Logistics Center, Kelly Air Force Base, Texas. (1978)
   Google Scholar
• A.P. Berens and P.W. Hovey, Evaluation of NDE reliability characterization, AFWAL-TR-81-4160, Vol 1, Air Force Wright-Aeronautical Laboratories, Wright-Patterson Air Force Base. (1981)
   Google Scholar
• Annis , C. and Knopp , J.S. 2007 . Comparing the effectiveness of a90/95 calculations . Rev. Prog. Quant. Nondestruct. Eval. , 26B : 1767 – 1774 .
   Google Scholar
• Cooper , T.D. and Forney , D.M. 1983 . Detection of cracks under installed fasteners in aircraft structures . Mat. Eval. , 41 : 1178 – 1200 .
   Web of Science ®Google Scholar
• Fitzpatrick , G.L. 1985 . Imaging near surface flaws in ferromagnetic materials using magneto-optic detectors . Rev. Prog. Quant. Nondestruct. Eval. , 4 : 807 – 818 .
   Google Scholar
• F. Spencer, Detection and Reliability for small cracks beneath rivet heads using eddy-current Nondestructive Inspection Techniques, DOT/FAA/AR-97/73. (1998)
   Google Scholar
• D. Piotrowski, J. Bohler, M. Bode, D. Moore, J. Bakuckas, D. Galella, and P. Swindell, Assessment of capabilities and readiness of conventional and emerging NDI methods for detecting subsurface cracks in lap joint structure, 9th Joint NASA/FAA/DoD Conference on Aging Aircraft, Atlanta, GA. (2006)
   Google Scholar
• M. Bode and D. Piotrowski, Reliability of emerging NDI for widespread fatigue damage detection, American Society of Nondestructive Testing Fall Conference, Houston, TX, October. (2006)
   Google Scholar
• Piotrowski , D. and Bode , M. 2007 . NDT comparison of in-service cracks, manufactured cracks and EDM notches . Rev. Prog. Quant. Nondestruct. Eval. , 26B : 1855 – 1862 .
   Google Scholar
• D.G. Moore and F.W. Spencer, Interlayer crack detection results using sliding probe eddy current procedures, 10th Asia–Pacific Conference on Non-Destructive Testing, Brisbane, Australia. (2001)
   Google Scholar
• Wincheski , B. , Simpson , J. and Todhuner , R. 1997 . A new instrument for the detection of fatigue cracks under airline rivets . Rev. Prog. Quant. Nondestruct. Eval. , 16B : 2113 – 2120 .
   Google Scholar
• Wincheski , B. and Namkung , M. 1998 . Detection of sublayer fatigue cracks under airframe rivets . Rev. Prog. Quant. Nondestruct. Eval. , 17A : 331 – 338 .
   Google Scholar
• Wincheski , B. , Simpson , J. , Namkung , M. , Perey , D. , Scales , E. and Louie , R. 2002 . Development of giant magnetoresistive inspection system for detection of deep fatigue cracks under airframe fasteners . Rev. Prog. Quant. Nondestruct. Eval. , 21 : 1007 – 1014 .
   Google Scholar
• Sun , Y. , Ouyang , T. and Udpa , S. 2001 . Multi-layer aircraft structure inspection using super-sensitive remote-field eddy-current system . Rev. Prog. Quant. Nondestruct. Eval. , 20 : 1906 – 1913 .
   Google Scholar
• Gibbs , M. and Campbell , J. 1991 . Pulsed eddy current inspection of cracks under installed fasteners . Mat. Eval. , 49 : 51 – 59 .
   Web of Science ®Google Scholar
• R.A. Smith, G.R. Hugo, and D.J. Harrison, Essential factors in improving the characterization of cracks and corrosion using transient eddy currents, Proc. 6th Joint FAA/NASA/DoD Conference on Aging Aircraft, San Francisco, September. (2002)
   Google Scholar
• Dogaru , T. , Smith , C.H. , Schneider , R.W. and Smith , S.T. 2004 . Deep crack detection around fastener holes in airplane multi-layered structures using GMR-based eddy current probes . Rev. Prog. Quant. Nondestruct. Eval. , 23 : 398 – 405 .
   Google Scholar
• Nair , N.V. 2006 . A GMR-based eddy current system for NDE of aircraft structures . IEEE Trans. Magn. , 42 : 3312 – 3314 .
   Web of Science ®Google Scholar
• Goldfine , N. , Zilberstein , V. , Washabaugh , A. , Schlicker , D. , Shay , I. and Grundy , D. 2003 . Eddy current sensor networks for aircraft fatigue monitoring . Mat. Eval. , 61 : 852 – 859 .
   Web of Science ®Google Scholar
• Nakagawa , N. and Moulder , J.C. 1993 . A model of bolt hole inspection via eddy currents . Rev. Prog. Quant. Nondestruct. Eval. , 12 : 259 – 263 .
   Google Scholar
• Rao , B.P.C. and Nakagawa , N. 2006 . Recommended NDT practice and its model-based investigation for eddy current inspection of aerospace structures . J. Nondestruct. Eval. , 25 : 183 – 194 .
   Web of Science ®Google Scholar
• Beissner , R.E. , Burkhardt , G.L. , Creek , E.A. and Fisher , J.L. 1993 . Eddy current probe design for second-layer cracks under installed fasteners . Rev. Prog. Quant. Nondestruct. Eval. , 12 : 1017 – 1023 .
   Google Scholar
• Hayford , D.T. and Ketcher , G.E. 1991 . Eddy current coils with spatially controlled field distribution . Rev. Prog. Quant. Nondestruct. Eval. , 10A : 913 – 920 .
   Google Scholar
• Thollon , F. , Lebrun , B. , Burais , N. and Jayet , Y. 1995 . Numerical and experimental study of eddy current probes in NDT of structures with deep flaws . NDT&E Int. , 28 : 97 – 102 .
   Web of Science ®Google Scholar
• Thollon , F. and Burais , N. 1995 . Geometrical optimization of sensors for eddy currents non destructive testing and evaluation . IEEE Trans. Magn. , 31 : 2026 – 2031 .
   Web of Science ®Google Scholar
• Rasolonjanahary , J.L. , Thollon , F. and Burais , N. 1996 . Study of eddy current non destructive testing system in riveted assemblies . IEEE Trans. Magn. , 32 : 1585 – 1588 .
   Web of Science ®Google Scholar
• Albanese , R. , Rubinacci , G. , Tamburrino , A. , Ventre , A. , Villone , F. , Xuan , L. , Shanker , B. , Udpa , L. , Udpa , S.S. and Elshafiey , I. 2001 . “ A comparative study of finite element models for magneto-optic imaging applications ” . In Electromagnetic Nondestructive Evaluation (V) , Edited by: Pavo , J. Amsterdam : IOS Press .
   Google Scholar
• Sharma , S. , Sun , Y. and Udpa , L. 1999 . Finite element modeling for simulating remote field flaw detection in aircraft frame . IEEE Trans. Magn. , 35 : 1750 – 1753 .
   Web of Science ®Google Scholar
• Liu , X. , Deng , Y. , Zeng , Z. , Udpa , L. and Knopp , J. 2006 . An element-free Galerkin model for simulating magneto-optic imaging for aerospace applications . Mat. Eval. , 64 : 1009 – 1013 .
   Web of Science ®Google Scholar
• X. Liu, Y. Deng, Z. Zeng, L. Udpa, and J. Knopp, Model based inversion technique of GMR signals using element-free Galerkin method, Accepted for publication in Applied Computational Electromagnetic Society 2008 Conference Proceedings. (2008)
   Google Scholar
• Burke , S.K. 1988 . A benchmark problem for computation of (ΔZ in eddy-current nondestructive evaluation (NDE) . J. Nondestruct. Eval. , 17 : 35 – 41 .
   Google Scholar
• Burke , S.K. 1990 . Eddy-current inspection of cracks in a multilayer conductor . J. Appl. Phys. , 67 : 465 – 476 .
   Web of Science ®Google Scholar
• Burke , S.K. 1994 . Eddy-current inversion in the thin-skin limit: Determination of depth and opening for a long crack . J. Appl. Phys. , 76 : 3072 – 3080 .
   Web of Science ®Google Scholar
• Sabbagh , H.A. , Sabbagh , E.H. and Murphy , R.K. 2002 . Validation of a volume-integral eddy-current code by bench-mark experiments . Rev. Prog. Quant. Nondestruct. Eval. , 21 : 396 – 402 .
   Google Scholar
• Harrison , D. , Jones , L. and Burke , S. 1996 . Benchmark problems for defect size and shape determination in eddy-current nondestructive evaluation . J. Nondestruct. Eval. , 15 : 21 – 34 .
   Google Scholar
• Knopp , J.S. , Aldrin , J.C. and Misra , P. 2006 . Considerations in the validation and application of models for eddy current inspection of cracks around fastener holes . J. Nondestruct. Eval. , 25 : 123 – 138 .
   Web of Science ®Google Scholar
• Lee , C. , Johnson , M.J. and Nakagawa , N. 2007 . Development of a pulsed eddy current system and its characterization . Rev. Prog. Quant. Nondestruct. Eval. , 26 : 354 – 361 .
   Google Scholar
• R. Murphy, H. Sabbagh, A. Chan, and E. Sabbagh, A volume-integral code for electromagnetic nondestructive evaluation, Proceedings of the 13th Annual Review of Progress in Applied Computational Electromagnetics, Monterey, CA, March. (1997)
   Google Scholar
• Knopp , J.S. , Sabbagh , H.A. , Aldrin , J.C. , Murphy , R.K. , Sabbagh , E.H. , Hoffmann , J. and Steffes , G. 2006 . Efficient solution of electromagnetic scattering problems using spatial decomposition algorithms . Rev. Prog. Quant. Nondestruct. Eval. , 25 : 299 – 306 .
   Google Scholar
• Paillard , S. , Pichenot , G. , Lambert , M. , Voilaume , H. and Dominguez , N. 2007 . A 3D model for eddy current inspection in aeronautics: Application to riveted structures . Rev. Prog. Quant. Nondestruct. Eval. , 26 : 265 – 272 .
   Google Scholar
• Carpenter , D.C. 2000 . Use of the finite element method in simulation and visualization of electromagnetic nondestructive testing applications . Mat. Eval. , 58 : 877 – 881 .
   Web of Science ®Google Scholar
• Johnson , M. , Lo , C. and Naidu , L. 2004 . Hall-effect measurements under AC excitation for the reconstruction of obliterated serial numbers in magnetic steels . Rev. Prog. Quant. Nondestruct. Eval. , 23D : 1445 – 1451 .
   Google Scholar
• Aldrin , J.C. , Achenbach , J.D. , Andrew , G. , P'an , C. , Grills , B. , Mullis , R.T. , Spencer , F.W. and Golis , M. 2001 . Case study for the implementation of an automated ultrasonic technique to detect fatigue cracks in aircraft weep holes . Mat. Eval. , 59 : 1313
   Web of Science ®Google Scholar
• Chady , T. , Sikora , R. and Enokizono , M. 2007 . Flaw recognition in presence of interferences from fasteners and subsurface structures . Rev. Prog. Quant. Nondestruct. Eval. , 26 : 709 – 716 .
   Google Scholar
• P.Y. Jourbert and Y. Le Bihan, Extraction of defect signals in eddy current NDE using a DWT based method, IV International Workshop on Advances in Signal Processing for Nondestructive Evaluation of Materials, ASNT. 6, (2002), pp. 119–124
   Google Scholar
• Joubert , P.Y. and Le Bihan , Y. 2004 . Eddy current data fusion for the enhancement of defect detection in complex metallic structures . Int. J. Appl. Electromagnet. Mech. , 19 : 647 – 651 .
   Web of Science ®Google Scholar
• Perez , L. , Hir , J.L. , Dolabdjian , C. and Butin , L. 2004 . Investigation in detection of fatigue cracks under rivet head airframe using improved GMR magnetometer in an eddy current system . J. Electr. Eng. , 55 : 73 – 76 .
   Google Scholar
• Aldrin , J.C. and Knopp , J.S. 2006 . Crack characterization method with invariance to noise features for eddy current inspection of fastener sites . J. Nondestruct. Eval. , 25 : 165 – 181 .
   Web of Science ®Google Scholar
• Aldrin , J.C. and Knopp , J.S. 2006 . Method for crack characterization with noise invariance for eddy current inspection of fastener sites . Rev. Prog. Quant. Nondestr. Eval. , 25 : 315 – 322 .
   Web of Science ®Google Scholar
• Knopp , J.S. , Aldrin , J.C. , Lindgren , E. and Annis , C. 2007 . Investigation of a model-assisted approach to probability of detection evaluation . Rev. Prog. Quant. Nondestruct. Eval. , 26 : 1775 – 1782 .
   Google Scholar
• Aldrin , J.C. and Knopp , J.S. 2007 . Case study for new feature extraction algorithms, automated data classification, and model-assisted probability of detection evaluation . Rev. Prog. Quant. Nondestruct. Eval. , 26 : 257 – 264 .
   Google Scholar
• Theodoulidis , T.P. and Kriezis , E.E. 2006 . Eddy Current Canonical Problems (with Applications to Nondestructive Evaluation) , Norcross, GA : Tech Science Press .
   Google Scholar
• H.A. Sabbagh and L.D. Sabbagh, Development of a system to invert eddy-current data and reconstruct flaws, Analytics, Inc., Rep. TR2-82, May 1982. Also in Int. Advances Nondestructive Testing, vol. 10 (1984), pp. 267–305
   Google Scholar
• H.A. Sabbagh and L.D. Sabbagh, Inversion of eddy-current data and the reconstruction of flaws using multifrequencies, Analytics, Inc., Rep. TR2-82, May 1982. Also in Int. Advances Nondestructive Testing, vol. 10 (1982), pp. 307–332
   Google Scholar
• Muennemann , F. , Auld , B.A. , Fortunko , C.M. and Padget , S.A. 1983 . Inversion of eddy current signals in a nonuniform field . Rev. Prog. Quant. Nondestruct. Eval. , 2 : 1501 – 1526 .
   Google Scholar
• Haywood , N.C. and Bowler , J.R. 1992 . Eddy-current imaging of buried cracks by inverting field data . IEEE Trans. Magn. , 28 : 1336 – 1339 .
   Web of Science ®Google Scholar
• Bowler , J.R. 2002 . Thin-skin eddy-current inversion for the determination of crack shapes . Inverse Problems , 18 : 1891 – 1905 .
   Web of Science ®Google Scholar
• Meeker , W.Q. and Escobar , L.A. 1998 . Statistical Methods for Reliability Data , New York : John Wiley & Sons . Appendix B
   Google Scholar
• Dogandzic , A. and Xiang , P. 2005 . Estimating statistical properties of eddy-current signals from steam generator tubes . IEEE Trans. Signal Process. , 53 : 3342 – 3348 .
   Web of Science ®Google Scholar
• Goldfine , N.J. 1993 . Magnetometers for improved materials characterization in aerospace applications . Mat. Eval. , 51 : 396 – 405 .
   Web of Science ®Google Scholar
• J.S. Knopp and J.C. Aldrin, Fundamental feature extraction methods for the analysis of eddy current data, Accepted for publication in Electromagnetic Nondestructive Evaluation Proceedings. (2008)
   Google Scholar
• Chady , T. , Enokizono , M. and Sikora , R. 1999 . Crack detection and recognition using an eddy current differential probe . IEEE Trans. Magn. , 35 : 1849 – 1852 .
   Web of Science ®Google Scholar
• Aldrin , J.C. , Sabbagh , H. , Sabbagh , E. , Murphy , R. , Concordia , M. , Judd , D. , Lindgren , E. and Knopp , J. 2006 . Methodology using inverse methods for pit characterization in multilayer structures . Rev. Prog. Quant. Nondestruct. Eval. , 25 : 767 – 774 .
   Google Scholar
• Spencer , F.W. 2006 . Probability of detection estimation for hit/miss data when detection cannot be attributed to specific flaws: An exporatory data analysis . Rev. Prog. Quant. Nondestruct. Eval. , 25 : 1886 – 1893 .
   Google Scholar
• Rebican , M. , Chen , Z. , Yusa , N. , Janousek , L. and Miya , K. 2006 . Shape reconstruction of multiple cracks from ECT signals by means of a stochastic method . IEEE Trans. Magn. , 42 : 1079 – 1082 .
   Web of Science ®Google Scholar
• Chen , Z. , Aoto , K. and Miya , K. 2000 . Reconstruction of cracks with physical closure from signals of eddy current testing . IEEE Trans. Magn. , 36 : 1018 – 1023 .
   Web of Science ®Google Scholar
• US Department of Defense MIL-HDBK-1823 Nondestructive Evaluation System Reliability Assessment, 30 April. (1999)
   Google Scholar
• J.N. Gray, T.A. Gray, N. Nakagawa, and R.B. Models for predicting NDE reliability, Metals Handbook, Vol 17, ASM Int Thompson, (1989), pp. 702–715
   Google Scholar
• Thompson , R.B. 2001 . Using physical models of the testing process in the determination of probability of detection . Mat. Eval. , 69 : 861 – 865 .
   Google Scholar
• K.D. Smith, R.B. Thompson, and L. Brasche, Model-based POD: Successes and opportunities, 1st Meeting of the MAPOD Working Group, Albuquerque, New Mexico, September 23–24, web site: http://www.cnde.iastate.edu/MAPOD/ (2004)
   Google Scholar
• C. Harding, G. Hugo, and S. Bowles, Model-assisted probability of detection validation of automated ultrasonic scanning for crack detection at fastener holes, Proceedings of the 10th Joint FAA/DoD/NASA Conference on Aging Aircraft, Palm Springs, CA, April 16–19. (2007)
   Google Scholar