Journal ArticleDOI
Stiffness matrices for layered soils
Eduardo Kausel,J M Roesset +1 more
Reads0
Chats0
TLDR
In this article, the Haskell-Thompson transfer matrix method is used to derive layer stiffness matrices which may be interpreted and applied in the same way as stiffness matrix in conventional structural analysis, and the exact expressions are given for the matrices, as well as approximations for thin layers.Abstract:
The Haskell-Thompson transfer matrix method is used to derive layer stiffness matrices which may be interpreted and applied in the same way as stiffness matrices in conventional structural analysis These layer stiffness matrices have several advantages over the more usual transfer matrices: (1) they are symmetric; (2) fewer operations are required for analysis; (3) there is an easier treatment of multiple loadings; (4) substructuring techniques are readily applicable; and (5) asymptotic expressions follow naturally from the expressions (very thick layers; high frequencies, etc) While the technique presented is not more powerful than the original Haskell-Thompson scheme, it is nevertheless an elegant complement to it The exact expressions are given for the matrices, as well as approximations for thin layers Also, simple examples of application are presented to illustrate the use of the methodread more
Citations
More filters
Journal ArticleDOI
Multifrequency back-calculation of pavement-layer moduli
TL;DR: In this article, a frequency-domain back-calculation program, BKGREEN, is introduced to determine the elastic modulus for each pavement layer. But the program is not suitable for the case where the pavement is modeled as a layered elastic s...
Journal ArticleDOI
The thin‐layer method in a cross‐anisotropic 3D space
TL;DR: In this paper, a generalization of the thin-layer method to three dimensions is presented, which is based on a formulation that fully couples the three components of motion, and allows finding effective solutions to either stationary or moving loads of arbitrary shape that act on or within horizontally layered media.
Journal ArticleDOI
An overview of surface wave methods and a reliability study of a simplified inversion technique
TL;DR: In this article, a simplified inversion method of surface wave dispersion data is proposed, making use of a penetration depth coefficient, aR, whose value is a function of Poisson's ratio and the overall shape of the dispersion curve.
Journal Article
Dynamic interpretation of dynaflect and falling weight deflectometer tests
J M Roesset,Ko-Young Shao +1 more
TL;DR: In this paper, the displacements obtained from dynamic analyses are compared to those provided by conventional static programs when the subbase is a homogeneous soil stratum of finite depth resting on a much stiffer rocklike material and when the soil properties increase smoothly with depth.
Journal ArticleDOI
A simple soil–structure interaction model
Süleyman Koçak,Yalcin Mengi +1 more
TL;DR: In this paper, a simple three-dimensional soil-structure interaction (SSI) model is proposed, which accommodates both the static and dynamic interaction effects, the program is developed presently for static case only and will be extended to dynamic case in a future study.
References
More filters
Book ChapterDOI
The Dispersion of Surface Waves on Multilayered Media
TL;DR: In this paper, a matrix formalism developed by W. T. Thomson is used to obtain the phase velocity dispersion equations for elastic surface waves of Rayleigh and Love type on multilayered solid media.
Journal ArticleDOI
Transmission of Elastic Waves through a Stratified Solid Medium
TL;DR: In this article, the transmission of a plane elastic wave at oblique incidence through a stratified solid medium consisting of any number of parallel plates of different material and thickness is studied theoretically.
Journal ArticleDOI
Shear Waves in Plane Infinite Structures
John Lysmer,Gunter Waas +1 more
TL;DR: In this paper, a numerical procedure is developed for the dynamic analysis of plane, linearly elastic systems consisting of an irregular zone joined to semi-infinite layered zones, where all exciting forces are assumed to be harmonic and perpendicular to the plane of the structure.
Journal ArticleDOI
Lumped mass method for Rayleigh waves
TL;DR: In this paper, a simple numerical method is developed for the analysis of generalized Rayleigh waves in multilayered elastic media, which completely avoids the use of displacement potentials and leads to a simple eigenvalue problem which may be solved by generally available effective computer codes.