In this paper we compare two time-domain BEM procedures applied to wave propagation analysis in layered media: the first comes from a classical weak formulation of the corresponding boundary integral equations, the second from a new "energetic" weak formulation which has a more robust theoretical background. Some numerical results will be presented, pointing out structural and conditioning properties of the derived linear systems. A numerical analysis of the two approximation procedures stability is carried out, too.
|Titolo:||Numerical results of one-dimensional wave propagation analysis in layered media|
GUARDASONI, CHIARA (Ultimo)
|Parole Chiave:||boundary integral equations ; boundary element method ; one-dimensional wave propagation ; weak formulation ; layered media|
|Data di pubblicazione:||2007|
|Tipologia:||Book Part (author)|
|Appare nelle tipologie:||03 - Contributo in volume|