3 citations · 11 across the 9 of their papers we have counts for
10 papers
Guided waves as superposition of body waves
David R. Dalton, Michael A. Slawinski, Theodore Stanoev
We illustrate properties of guided waves in terms of a superposition of body waves. In particular, we consider the Love and SH waves. Body-wave propagation at postcritical angles--…
On Backus average in modelling guided waves
David R. Dalton, Thomas B. Meehan, Michael A. Slawinski
We examine the Backus average of a stack of isotropic layers overlying an isotropic halfspace to examine its applicability for the quasi-Rayleigh and Love wave dispersion curves, b…
On Pareto Joint Inversion of guided waves
Adrian Bogacz, David R. Dalton, Tomasz Danek +2
We use the Pareto Joint Inversion, together with the Particle Swarm Optimization, to invert the Love and quasi-Rayleigh surface-wave speeds, obtained from dispersion curves, in ord…
On commutativity and near commutativity of translational and rotational averages: Analytical proofs and numerical examinations
Len Bos, David R. Dalton, Michael A. Slawinski
We show that, in general, the translational average over a spatial variable---discussed by Backus \cite{backus}, and referred to as the equivalent-medium average---and the rotation…
Sensitivity of Love and quasi-Rayleigh waves to model parameters
David R. Dalton, Michael A. Slawinski, Piotr Stachura +1
We examine the sensitivity of the Love and the quasi-Rayleigh waves to model parameters. Both waves are guided waves that propagate in the same model of an elastic layer above an e…
Numerical examination of commutativity between Backus and Gazis et al. averages
David R. Dalton, Michael A. Slawinski
Dalton and Slawinski (2016) show that, in general, the Backus (1962) average and the Gazis et al. (1963) average do not commute. Herein, we examine the extent of this noncommutativ…
Forward problem for Love and quasi-Rayleigh waves: Exact dispersion relations and their sensitivities
David R. Dalton, Michael A. Slawinski, Piotr Stachura +1
We examine two types of guided waves: the Love and the quasi-Rayleigh waves. Both waves propagate in the same model of an elastic isotropic layer above an elastic isotropic halfspa…
On commutativity of Backus and Gazis averages
David R. Dalton, Michael A. Slawinski
We show that the Backus (1962) equivalent-medium average, which is an average over a spatial variable, and the Gazis et al. (1963) effective-medium average, which is an average ove…
On Backus average for generally anisotropic layers
Len Bos, David R. Dalton, Michael A. Slawinski +1
In this paper, following the Backus (1962) approach, we examine expressions for elasticity parameters of a homogeneous generally anisotropic medium that is long-wave-equivalent to…
On Backus average for oblique incidence
David R. Dalton, Ayiaz Kaderali
We postulate that validity of the Backus (1962) average, whose weights are layer thicknesses, is limited to waves whose incidence is nearly vertical. The accuracy of this average d…