How can I simulate lamb wave propagation a steel hollow cylinder for a specific wavenumber k ?plate using comsol?

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Serge Mendonça

Thanks Roman for your answer,

But clarify me : it's holow cylinder, with void, only waves in thickness. Do you specify boundaries faces extremity definied by thickness to specify SRC and DST definitions on comsol ?

Thanks a lot

Roman thanks à lot, excellent explication.I test Floquet, and its work perflectly. I find all dispersion points kz=f(freq), but i can't obtain classe famille definition, to identify family modes : longitudinal, torsion, flex...how to identify them with console? Thanks a lot again