Abstract
Theoretical and experimental studies of longitudinal and lateral vibrations in a 2D cavity filled with foam viscoelastic material were performed; measurement methods of Lame parameters, as well as viscosity parameters with longitudinal and lateral resonance vibrations in cellular polypropylene loaded by a final mass were proposed. Measurements of the visco-elastic properties of samples from the porous closed cellular polyethylene of a PE foam and EVA ultrathene types were made.
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