acoustotreams.AcousticMaterial.from_pratio

classmethod AcousticMaterial.from_pratio(rho=1.3, c=343, pratio=0.5)[source]

Create acoustic material from Poisson’s ratio.

This function calculates the transverse speed of sound with \(c_t = c \sqrt{\frac{1 - 2\sigma}{2 - 2\sigma}}\).

Parameters:
  • rho (complex, optional) – Mass density (kg/m^3). Defaults to 1.3 kg/m^3.

  • c (complex, optional) – Longitudinal speed of sound (m/s). Defaults to 343 m/s.

  • pratio (complex, optional) – Poisson’s ratio. Defaults to 0.5.

Returns:

AcousticMaterial