学術雑誌論文

学術雑誌論文

text

Ultrasonics. 2002, 40(1-8), p. 193-197

Multiple reflections of Lamb waves at a delamination

Elsevier Ltd

英語

text

2002-05

https://doi.org/10.1016/s0041-624x(02)00136-1

Wave propagation in laminated plates with delaminations was calculated using the semi-analytical finite element method. The visualization results and deeper numerical analyses revealed the following phenomena on the fundamental Lamb modes at delamination regions of laminated plates. First, Lamb wave propagates toward the delamination, and then splits into two independent waves at the "Entrance" of the delamination with no significant reflections. These two waves reach the "Exit" of the delamination with the different phases and arrival time. Thus reflected and transmitted waves are excited at the Exit. The repetition of such reflections at the Exit causes the multiple reflections at regular intervals corresponding to the delamination size.

© 2002 Elsevier Science B.V. This manuscript version is made available under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

84499

Multiple reflections of Lamb waves at a delamination

Elsevier Ltd

英語

2002-05

Ultrasonics

40

1-8

193

197

https://doi.org/10.1016/s0041-624x(02)00136-1

https://hdl.handle.net/11094/84499