Finite element analysis of elastic transient ultrasonic wave propagation for NDT applications

  • Authors:

  • G. Aiello;E. Dilettoso;N. Salerno

  • Affiliations:

  • Dipartimento di Ingegneria Elettrica Elettronica e dei Sistemi, Università degli Studi di Catania, Catania, Italy;Dipartimento di Ingegneria Elettrica Elettronica e dei Sistemi, Università degli Studi di Catania, Catania, Italy;Dipartimento di Ingegneria Elettrica Elettronica e dei Sistemi, Università degli Studi di Catania, Catania, Italy

  • Venue:
  • ISTASC'05 Proceedings of the 5th WSEAS/IASME International Conference on Systems Theory and Scientific Computation
  • Year:
  • 2005

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Abstract

Nondestructive testing techniques are of great relevance nowadays and are extensively employed in almost all areas of engineering to detect defects in products and structures, or to point out deteriorations in industrial plants. The paper deals with techniques which make use of transient ultrasonic waves, the aim being numerical modelling and simulation of their propagation in long cylindrical shell structures affected by axisymmetric defects and/or material inhomogeneities. For this purpose a finite element code has been developed by the authors, who have validated and utilized it to perform simulations, the results of which are presented and discussed.