Scattering of guided waves from complex defects in plates in pipes
Abstract
Guided ultrasonic waves are successfully employed for rapid screening of plate-like structures and pipelines. Imaging techniques allow to identify and localize areas of the structure with possible defects. However, inverse problem of defect characterization and sizing still represents a considerable challenge. In this paper the efficient FE model is used to simulate the scattering response from various corrosion defects with complex realistic depth and surface profiles. The data is then analyzed in order to determine the defect geometrical parameters (lateral size, depth, etc). The results of analysis are presented and its implications to practical remote defect characterization are discussed.
- Publication:
-
Review of Progress in Quantitative Nondestructive Evaluation: Volume 32
- Pub Date:
- January 2013
- DOI:
- 10.1063/1.4789040
- Bibcode:
- 2013AIPC.1511..129V
- Keywords:
-
- corrosion;
- finite element analysis;
- pipelines;
- pipes;
- plates (structures);
- ultrasonic imaging;
- ultrasonic materials testing;
- ultrasonic scattering;
- ultrasonic waves;
- 43.20.Mv;
- 43.35.Cg;
- 43.35.Zc;
- 43.60.Lq;
- 81.70.Cv;
- 89.20.Kk;
- Waveguides wave propagation in tubes and ducts;
- Ultrasonic velocity dispersion scattering diffraction and attenuation in solids;
- elastic constants;
- Use of ultrasonics in nondestructive testing industrial processes and industrial products;
- Acoustic imaging displays pattern recognition feature extraction;
- Nondestructive testing: ultrasonic testing photoacoustic testing;
- Engineering