Abstract
Dispersion characteristic of longitudinal guided wave plays an important role in detecting defect of multi-layered tube. Here, a new procedure is proposed to explore such dispersion characteristic in a kind of multi-layered tube with weak interface. The mathematical equations are firstly established, from which the spectral method is applied to get an approximate solution in the whole axial wave number range, and the customary root-finding approach is then developed to improve the solution’s accuracy in some local axial wave number regions. Based on the above procedure, an algorithm is designed and applied to several numerical examples for a two-layered tube with the intact and weak interfaces. The results show that the present procedure preserves both the efficiency of the spectral method and the accuracy of the root-finding approach, and can be employed in defect detection by longitudinal guided wave on the multi-layered tube with weak interface effectively.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
