Free vibrations

Objects with spherical symmetry

• lamb: calculation and visualization for a free homogeneous sphere (isotropic elasticity)
• terre: free vibrations of the Earth using a very basic model
• calculation for core-shell and multilayer spheres:
  • csm: eigenmode approach, an embedding medium can be approximated by a thick external shell
  • cfm: pseudomode approach, infinite embedding medium, viscoelasticity, …

Objects with cylindrical symmetry

• cyl: calculation and 2D visualization for a free homogeneous infinite cylinder (isotropic elasticity)
• rus/AgDumbbell: coupled nanoparticles, anisotropic shape, isotropic elasticity

Objects with lower symmetry

• rus : description of the calculation method and symmetry considerations
• calculation and 3D visualization for:
  • finite objects whose symmetry is cubic, tetragonal, orthorhombic or generic
  • infinite cylinders whose symmetry is tetragonal, orthorhombic or generic

The rus calculators have superseded the following old pages: rus/AgSphere, rus/AgSpheroid and rus/AgCube.

Mie scattering

• mie: homogeneous sphere, mie/pwa: version for mobile devices
• miecoat: core-shell

Other

• conv: unit converter for Raman spectroscopists and others, conv/pwa: version for mobile devices
• christoffel:
  • sound speed calculator using Christoffel equation
  • help choose the elastic properties of a material for use with one of the free vibrations calculators above.