کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6479949 | 1428658 | 2017 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
The importance of accurate time-integration in the numerical modelling of P-wave propagation
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی کامپیوتر
نرم افزارهای علوم کامپیوتر
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: The importance of accurate time-integration in the numerical modelling of P-wave propagation The importance of accurate time-integration in the numerical modelling of P-wave propagation](/preview/png/6479949.png)
چکیده انگلیسی
The numerical dissipation characteristics of the Newmark and generalised-α time-integration schemes are investigated for P-wave propagation in a fully saturated level-ground sand deposit, where higher frequencies than those for S-waves are of concern. The study focuses on resonance, which has been shown to be of utmost importance for triggering liquefaction due to P-waves alone. The generalised-α scheme performs well, provided that the time-step has been carefully selected. Conversely, the dissipative Newmark method can excessively damp the response, changing radically the computed results. This implies that a computationally prohibiting small time-step would be required for Newmark to provide an accurate solution.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Computers and Geotechnics - Volume 86, June 2017, Pages 203-208
Journal: Computers and Geotechnics - Volume 86, June 2017, Pages 203-208
نویسندگان
Vasiliki Tsaparli, Stavroula Kontoe, David M.G. Taborda, David M. Potts,