Geometry of the film /substrate system.
Cross section of the sample.
Surface normal displacements at source-receiver distances of 4, 8, and 12 mm in the elastic plate (–) and viscoelastic plate (—) along (a) direction . (b) direction .
Displacement curves of the guide waves propagating along the (a) carbon-epoxy /aluminum and (b) carbon-epoxy /foam system in direction .
The peak strain energy attenuative curves with increasing of the source-receiver distance for (a) film and (b) film/substrate systems.
Properties used in the calculation.
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