Journal
JOURNAL OF SOUND AND VIBRATION
Volume 333, Issue 18, Pages 4203-4213Publisher
ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
DOI: 10.1016/j.jsv.2014.04.013
Keywords
-
Categories
Ask authors/readers for more resources
This paper addresses scattering effects at arbitrarily shaped defects in waveguides with finite cross-sections. The main subject is to predict scattered wavefields induced by an incident wavefield in order to localize and characterize damages. The numerical approach involves the solution of a boundary value problem in combination with a decomposition method of scattered wavefields. In order to investigate mode conversion phenomena at defects, a boundary element model of the damaged waveguide section is built up. Implementation of the Boundary Element Method based on the elastodynamic boundary integral equation and the Waveguide Finite Element Method allows for a numerically efficient calculation of scattering coefficients. For defect characterization and mode sensitivity analysis, various types of surface opening defects as well as shear fractures are considered. Numerical results are presented for cylindrical waveguides and are verified experimentally. (C) 2014 Elsevier Ltd. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available