کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6917880 | 862986 | 2013 | 16 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Scattering from targets in three-dimensional littoral and surf-zone environments with multi-layered elastic sediments based on an interior-transmission formulation
ترجمه فارسی عنوان
پراکندگی از اهداف در محیط های ساحلی سه بعدی و مناطق گشت و گذار با رسوبات الاستیکی چند لایه بر اساس فرمول بندی انتقال داخلی
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی کامپیوتر
نرم افزارهای علوم کامپیوتر
چکیده انگلیسی
We present a new numerical approach to compute the three-dimensional scattering of acoustic and elastic waves from elastic objects buried in multi-layered elastic sediments. We use a frequency-domain approach and utilize an elastodynamics formulation based on an interior-transmission representation of the scattering problem. This enables us to use the perfectly-matched-layer approximation (PML) method for exterior truncation while avoiding some fundamental problems associated with the truncation of the non-homogeneous exterior domains with coupled elasto-acoustics. We present several examples that verify the new formulation and its finite-element-based numerical implementation. We also demonstrate its application to important problems involving the computation of scattered fields from buried elastic objects buried in littoral or surf-zone domains with a multi-layered sediment modeled as three-dimensional visco-elastic material.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Computer Methods in Applied Mechanics and Engineering - Volume 260, 15 June 2013, Pages 24-39
Journal: Computer Methods in Applied Mechanics and Engineering - Volume 260, 15 June 2013, Pages 24-39
نویسندگان
S. Dey, W.G. Szymczak, A. Sarkissian, J.A. Bucaro,