Dictionary:P-wave

ADVERTISEMENT
From SEG Wiki
Revision as of 18:04, 28 May 2017 by JuanSEG (talk | contribs) (Marked this version for translation)
(diff) ← Older revision | Latest revision (diff) | Newer revision → (diff)
Jump to: navigation, search
Other languages:
English • ‎español


An elastic body wave in which particle motion is in the direction of propagation. The type of seismic wave assumed in conventional seismic exploration. Also called primary wave (undae primae), compressional wave, longitudinal wave, push-pull wave, pressure wave, dilatational wave, rarefaction wave, and irrotational wave. In an isotropic homogeneous solid, the P-wave velocity VP can be expressed in terms of the elastic constants and the density (ρ):

where λ and μ are the Lamé constants, E is Young’s modulus, K is the bulk modulus, and σ is Poisson’s ratio. See also wave notation and Sheriff and Geldart (1995, 44–45)[1].


References

  1. Sheriff, R. E. and Geldart, L. P., 1995, Exploration Seismology, 2nd Ed., Cambridge Univ. Press.