Abstract:Propagating guided waves in a homogeneous, isotropic, prestressed, hyperelastic plate show nonlinear characteristics that depend on the state of initial prestress. These nonlinear phenomena include higher harmonic generation, occurring when Lamb wave modes of different frequencies (ωa and ωb) are allowed to mix within the material generating secondary waves at frequencies 2ωa, 2ωb, and ωa± ωb. Further, if prescribed internal-resonance conditions are satisfied, the amplitude of secondary waves increases in spac… Show more
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