26.3.2. Mathematical Model

Try these first

1. 1.

   What type of wave motion do Rayleigh waves exhibit?

   Hint

   Think about how ocean waves move.

2. 2.

   What is the typical velocity relationship between Rayleigh waves and S-waves?

   Hint

   Consider the percentage before the term 'S-wave.'

3. 3.

   What type of motion do Rayleigh waves exhibit?

   • Transverse Motion
   • Retrograde Elliptical Motion
   • Straight Line Motion

   Hint

   Picture how ocean waves move.

4. 4.

   The velocity of Rayleigh waves is generally _____ compared to S-waves.

   • True
   • False

   Hint

   Consider the speed percentage in relation to S-waves.

5. 5.

   If a shear wave in a given medium travels at 340 m/s, calculate the expected speed of Rayleigh waves in that medium.

   Hint

   Multiply the shear wave speed by 0.9.

6. 6.

   Explain how the direction of particle motion in Rayleigh waves differs from that of S-waves. How does this impact their effect on structures?

   Hint

   Consider the different types of wave motion and their consequences.