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Guided Wave Calculation and Its Applications to NDE  

Hayashi, Takahiro (Faculty of Engineering, Nagoya Institute of Technology)
Publication Information
Journal of the Korean Society for Nondestructive Testing / v.24, no.2, 2004 , pp. 125-135 More about this Journal
Abstract
This paper describes the calculation technique for guided wave propagation with a semi-analytical finite element method (SAFEM) and shows some results of numerical calculation and guided wave simulation for plates, pipes and railway rails. The SAFEM calculation gives dispersion curves and wave structures for bar-like structures. Dispersion curve software for a pipe is introduced, and also dispersion corves for a rail are given and experimentally verified. The mode conversions in a plate with a defect and in a pipe with an elbow or a defect are shown as examples of our guided wave simulations.
Keywords
guided wave; semi-analytical finite element method; dispersion curve; simulation; animation;
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