Shear does return to the source and therefore generates interference.
Shear is how a speaker works.Some energy moves straight off the center
of the cone or membrane. The rest moves on both sides and thru the
cone..and guess watt it hits the surround and the frame and returns back
down the cone and interferes with the note that's coming its way. And
it also bounces off the dust cap.. A head on collision...same goes for
your audio room. The world is not just compressive it is also shear.
Shear upon impact is like breaking all the balls when playing pool. Energy goes everywhere and into the next material boundary..
Okay, now I am convinced you don't know what you are talking about. Thank you for clearing that up.
"shear" is not how a speaker works. In an ideal speaker, there would actually be no transverse waves in the cone material at all, but they are unavoidable. If you could make a perfectly stiff cone, there would be no transverse wave at all. However, that is not practical and hence why we have cone breakup which everyone is quite aware of, inverse dusk caps, etc. This is not news. This also has nothing to do with fuses. Put the hammer away. Wrong problem.
