Introduction to acoustical porous materials

N2N, Spring School, 2019.04.23-24, ENTPE
Part 1
Luc Jaouen

Wave propagation in :
1. air & "equivalent fluid" (i.e. materials with rigid motionless skeletons)
2. solids (i.e skeletons in vacuum)
3. porous materials with elastic skeletons (i.e. Biot's theory)
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These slides are the result of a long-time collaboration with my colleagues at Matelys :
Fabien Chevillotte and François-Xavier Bécot.

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About the plot :
The cartoon image of SpongeBob SquarePants is a tribute to the work by late Stephen Hillenburg. This drawing has been done from scratch for the purpose of this page : there's no way you will find Bob cut in two halves like this in the original TV show and comics. I thus assume this is not an infringement of Viacom's copyright.

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Luc Jaouen (@ljaouen), ISSN 2606-4138.
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