Author
P. Sreedhar
Bio: P. Sreedhar is an academic researcher. The author has contributed to research in topics: Transverse plane & Wave propagation. The author has an hindex of 1, co-authored 1 publications receiving 1 citations.
Topics: Transverse plane, Wave propagation
Papers
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24 Jan 2013
TL;DR: In this article, a 3D finite element (FE) simulation shows that bends in plates can concentrate and guide ultrasonic energy along the direction of wave propagation, and an interesting feature-guided mode that is surprisingly similar to the A0 (fundamental antisymmetric) Lamb mode in normal plates was identified when the bent plate is subjected to 'inplane' excitation as the generation of this type of mode for a thicknesswise symmetric excitation is unexpected.
Abstract: Inspection of practical plate assemblies is challenging due to the presence of complex features such as bends and corners. The objective is to investigate the influence of bends or curvature in the transverse direction on the propagation of guided waves in plates. A 3D finite element (FE) simulation shows that bends in plates can concentrate and guide ultrasonic energy along the direction of wave propagation. An interesting feature-guided mode that is surprisingly similar to the A0 (fundamental antisymmetric) Lamb mode in normal plates was identified when the bent plate is subjected to 'in-plane' excitation as the generation of this type of mode for a thicknesswise symmetric excitation is unexpected. These results are validated with experiments and discussed using Semi Analytical Finite Element (SAFE) models.
1 citations
Cited by
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TL;DR: This paper focuses on the faster bend-guided mode that is similar to the S0 (fundamental symmetric) Lamb mode in flat plates that is shown to be more strongly generated in smaller angle bends.
35 citations