A question about ultrasonic wave

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Shear wave splitting occurs when a linearly polarized shear wave enters an anisotropic material, resulting in a fast and slow shear wave. At normal incidence, the effect of changing the polarization of the incoming shear wave on the fast shear wave speed is debated. Some argue that wave splitting cannot occur at normal incidence, meaning polarization changes would not affect the fast wave speed. However, if the shear wave's propagation direction is not aligned with the c-axis in transversely isotropic materials, splitting can still happen. The discussion highlights the complexities of wave behavior in anisotropic materials.
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Hi,

When a linearly polarized shear wave enters an anisotropic material, shear wave splitting (a fast and a slow shear waves) will occur.
My question is, under normal incident, will the fast shear wave speed vary if the polarization of the incoming shear wave changes?

Thanks!
 
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fannyfanfanz said:
Hi,

When a linearly polarized shear wave enters an anisotropic material, shear wave splitting (a fast and a slow shear waves) will occur.
My question is, under normal incident, will the fast shear wave speed vary if the polarization of the incoming shear wave changes?

Thanks!
Not sure how you can have wave splitting at normal incidence, so rotating polarization will not have any effect.
 
tech99 said:
Not sure how you can have wave splitting at normal incidence, so rotating polarization will not have any effect.
If the propagation direction of the shear wave is not parallel to the c-axis (assuming the material is transversely isotropic), the shear wave will split at normal incidence.
 

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