Ultrasonic guided wave Modal Analysis Technique(UMAT) for defect detection

J. L. Rose, F. Yan, Y. Zhu

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Scopus citations


A new ultrasonic vibration technique is presented to bridge the gap between ultrasonic wave propagation and modal analysis vibration methods, both used in Nondestructive Evaluation (NDE) and S tructural Health Monitoring (SHM). The technique is fast; only one sender and a f ew receiver locations are necessary; defect-detection potential sizes are somewhere between what is expected for the ultrasonic guided wave and modal analysis methods. Sections of an odd shaped test component can be completely hidden or covered. Only a small area must be accessible. It is shown that sensitivity is based on a carefully selected ultrasonic loading function in utilizing the principles of waves and vibrations. Phase velocity dispersion curves, wave structures, reflection factor analysis and classical modal analyses are essential in the work efforts. Sample FEM and experimental results are presented for isotropic metals and anisotropic composite materials to demonstrate the concept. Excellent results are obtained. Future directions are also discussed.

Original languageEnglish (US)
Title of host publicationStructural Dynamics - Proceedings of the 28th IMAC, A Conference on Structural Dynamics, 2010
PublisherSpringer New York LLC
Number of pages8
EditionPART 1
ISBN (Print)9781441998330
StatePublished - 2011

Publication series

NameConference Proceedings of the Society for Experimental Mechanics Series
NumberPART 1
ISSN (Print)2191-5644
ISSN (Electronic)2191-5652

All Science Journal Classification (ASJC) codes

  • General Engineering
  • Computational Mechanics
  • Mechanical Engineering


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