کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4927161 1431701 2017 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
A fast and accurate method to compute dispersion spectra for layered media using a modified Kausel-Roësset stiffness matrix approach
موضوعات مرتبط
مهندسی و علوم پایه علوم زمین و سیارات مهندسی ژئوتکنیک و زمین شناسی مهندسی
پیش نمایش صفحه اول مقاله
A fast and accurate method to compute dispersion spectra for layered media using a modified Kausel-Roësset stiffness matrix approach
چکیده انگلیسی
This brief article presents a simple modification to the widely-used Kausel-Roësset Stiffness Matrix Method (SMM), and in particular to its implementation in the context of the Thin-Layer Method (TLM). This modification allows making fast and accurate computations of wavenumber spectra even for layered media underlain by infinitely deep half-spaces. As is well known, the TLM uses a finite element expansion in the depth direction, which in principle disallows exact representations of infinitely deep media other than through Paraxial Approximations or Perfectly Matched Layers. However, with the modification presented herein, that obstacle is removed. The very simple method is first presented and then demonstrated by means of examples involving layered half-spaces.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Soil Dynamics and Earthquake Engineering - Volume 92, January 2017, Pages 176-182
نویسندگان
, ,