Tomographic reconstruction of damage images in hollow cylinders using Lamb waves.

Lamb wave tomography (LWT) is a potential and efficient technique for non-destructive tomographic reconstruction of damage images in structural components or materials. A two-stage inverse algorithm proposed by the authors for quickly reconstructing the damage images was applied to hollow cylinders. An aluminum hollow cylinder with an internal surface pit and a Carbon Fiber Reinforced Plastic (CFRP) laminated hollow cylinder with an artificial internal surface damage were used to validate the proposed method. The results show that the present method is capable of successfully reconstructing the images of the above damages in a larger inspection area with much less experimental data compared to some conventional ultrasonic tomography techniques.

[1]  M. Hinders,et al.  Fan beam and double crosshole Lamb wave tomography for mapping flaws in aging aircraft structures. , 2000, The Journal of the Acoustical Society of America.

[2]  M. Hinders,et al.  PARALLEL PROJECTION AND CROSSHOLE LAMB WAVE CONTACT SCANNING TOMOGRAPHY , 1999 .

[3]  D. Jansen,et al.  Air-coupled Lamb wave tomography , 1997, IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control.

[4]  Ning Hu,et al.  Impact analysis of composite laminates with multiple delaminations , 1999 .

[5]  Mark K. Hinders,et al.  Ultrasonic Lamb wave tomography , 2002 .

[6]  Li Cheng,et al.  Predicting delamination of composite laminates using an imaging approach , 2009 .

[7]  Ning Hu,et al.  A New Inverse Algorithm for Tomographic Reconstruction of Damage Images Using Lamb Waves , 2011 .

[8]  D. Hutchins,et al.  Lamb wave tomography , 1990, IEEE Symposium on Ultrasonics.

[9]  D. Hutchins,et al.  Lamb-wave tomography using non-contact transduction , 1993 .

[10]  Wing Kong Chiu,et al.  Structural health monitoring of composite structures using stress wave methods , 2005 .

[11]  Ning Hu,et al.  Characterization of damage size in metallic plates using Lamb waves , 2012 .

[12]  Oliver Nelles,et al.  Multi-site damage localization in anisotropic plate-like structures using an active guided wave structural health monitoring system , 2010 .

[13]  M. Hinders,et al.  Ultrasonic Lamb wave diffraction tomography. , 2001, Ultrasonics.

[14]  Ning Hu,et al.  Damage assessment of structures using modal test data , 2001 .

[15]  J. Rose.  Ultrasonic Waves in Solid Media , 1999 .

[16]  P. Gilbert.  Iterative methods for the three-dimensional reconstruction of an object from projections. , 1972, Journal of theoretical biology.

[17]  Martin Veidt,et al.  A Lamb-wave-based technique for damage detection in composite laminates , 2009 .

[18]  Ning Hu,et al.  Buckling Analysis of Elliptically Delaminated Composite Laminates with Consideration of Partial Closure of Delamination , 2000 .

[19]  Lin Ye,et al.  Guided Lamb waves for identification of damage in composite structures: A review , 2006 .

[20]  Gabor T. Herman.  Algebraic Reconstruction Techniques , 2009 .

[21]  Wieslaw Ostachowicz,et al.  Damage localisation in plate-like structures based on PZT sensors , 2009 .

[22]  Paul D. Wilcox,et al.  Ultrasonic arrays for non-destructive evaluation: A review , 2006 .

[23]  Ning Hu,et al.  Identification of delamination position in cross-ply laminated composite beams using S0 Lamb mode , 2008 .

[24]  T. Michaels,et al.  Guided wave signal processing and image fusion for in situ damage localization in plates , 2007 .

[25]  D. Hutchins,et al.  Lamb wave tomography of advanced composite laminates containing damage , 1994 .

[26]  Hoon Sohn,et al.  Wavelet-based active sensing for delamination detection in composite structures , 2004 .

[27]  Srinivasan Gopalakrishnan,et al.  Rapid localization of damage using a circular sensor array and Lamb wave based triangulation , 2010 .

[28]  R. Hingorani,et al.  Direct Fourier reconstruction in computer tomography , 1981 .