کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4927397 1431704 2016 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
A new series solution method for two-dimensional elastic wave scattering along a canyon in half-space
ترجمه فارسی عنوان
یک روش راه حل سری جدید برای پراکندگی موج دو بعدی الاستیک در امتداد یک دره در نیمه فضا
کلمات کلیدی
راه حل های سری، راه حل بره، توابع موج، امواج الاستیک، مشکل پراکندگی،
موضوعات مرتبط
مهندسی و علوم پایه علوم زمین و سیارات مهندسی ژئوتکنیک و زمین شناسی مهندسی
چکیده انگلیسی
This paper presents a semi-analytical method for studying the two-dimensional problem of elastic wave scattering by surface irregularities in a half-space. The new method makes use of the member of a c-completeness family of wave functions to construct the scattering fields, and then applies equal but opposite tractions to those of the foregoing constructed scattering fields on the horizontal surface of the half-space to produce additional scattering fields. These additional scattering fields are a series of Lamb's solutions. Thus the whole scattering field constructed in the series automatically satisfies the Navier equations, the condition of zero traction on the half-space surface, and the radiation boundary conditions at infinity. Using the traction-free conditions along the canyon surface, the coefficients of the series solutions are determined via a least-squares method. For incident P, SV, and Rayleigh waves, the numerical results are presented for the scattering displacements in the vicinity of a semi-circular canyon in the half-space.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Soil Dynamics and Earthquake Engineering - Volume 89, October 2016, Pages 128-135
نویسندگان
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