| 21. | Bending waves are more complicated than compressional or shear waves and depend on material properties as well as geometric properties.
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| 22. | In the high frequency limit, the phase and group velocities of all these modes converge to the shear wave velocity.
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| 23. | Rayleigh waves have a speed slightly less than shear waves by a factor dependent on the elastic constants of the material.
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| 24. | Shear waves may also be generated by the use of elastically anisotropic solids cut at oblique angles to the crystal axes.
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| 25. | It has been shown theoretically that in a certain low-frequency range, polymeric gels should propagate shear waves with relatively low damping.
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| 26. | The speed of shear waves, which can occur only in solids, is determined simply by the solid material's shear modulus and density.
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| 27. | The pattern of increasing shear wave splitting time-delays is typical of the increase now seen before many earthquakes in Iceland and elsewhere.
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| 28. | Their shear wave velocity reduction is on the order of-10 to-30 % and the compressional wave velocity reduction tends to be weaker.
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| 29. | In addition to stress waves, Bellamy and Zajtchuck describe shear waves as a possible mechanism of indirect injuries in the WDMET data.
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| 30. | These different waves ( compression waves and the different polarizations of shear waves ) may have different speeds at the same frequency.
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