Markučič, Damir and Mihaljević, Morana and Guliš, Matija (2011) Simulation of ultrasonic pulse propagation through multiple curved boundaries. = Simulation of ultrasonic pulse propagation through multiple curved boundaries. Transactions of FAMENA, 35 (3). pp. 1-12. ISSN 1333-1124. Vrsta rada: ["eprint_fieldopt_article_type_article" not defined]. Kvartili JCR: Q4 (2011). Točan broj autora: 3.
Full text not available from this repository.Abstract
Non-destructive testing (NDT) methods are regularly applied as part of in-service inspection to verify the integrity of structures during their exploitation. Flooded Member Detection (FMD) is an underwater NDT method utilised to detect penetration of water in hollow underwater structure elements (members) of off-shore platforms. Since ultrasonic NDT techniques are commonly used for FMD, the geometrical positioning of ultrasonic probes in relation to a structure member is a very complex problem in real testing conditions. Therefore, we analyse ultrasonic signal responses regarding the range of probe geometry displacements that occur in practical situations. Theoretical and numerical modelling, based on the linear dynamic theory of isotropic elastic materials, formulate a system of equations describing the geometrical path of the ultrasonic pulse propagation through multiple curved boundaries. Numerical simulations were performed for several characteristic sets of parameters by using the software package MATLAB. The results obtained with a simulation model show an agreement with experimental results obtained on a laboratory mock-up model, pointing to a significant influence of the position and orientation of ultrasonic probes on the reliable interpretation of ultrasonic response.
| Item Type: | Article (["eprint_fieldopt_article_type_article" not defined]) |
|---|---|
| Keywords (Croatian): | beam reflection and refraction; curved acoustic boundaries; mode conversion; underwater ultrasonic Flooded Member Detection |
| Subjects: | TECHNICAL SCIENCE |
| Divisions: | 800 Department of Quality > 820 Chair of Non-Destructive Testing |
| Indexed in Web of Science: | Yes |
| Indexed in Current Contents: | No |
| Citations JCR: | 1 (04.10.2018.) |
| Quartiles: | Q4 (2011) |
| Citations SCOPUS: | 1 (04.10.2018.) |
| Date Deposited: | 23 Apr 2015 09:22 |
| Last Modified: | 04 Oct 2018 10:51 |
| URI: | http://repozitorij.fsb.hr/id/eprint/3773 |
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