کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1900275 | 1045294 | 2009 | 13 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Explicit conditions for the existence of exceptional body waves and subsonic surface waves in anisotropic elastic solids
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موضوعات مرتبط
مهندسی و علوم پایه
علوم زمین و سیارات
زمین شناسی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Explicit conditions for the existence of exceptional body waves and subsonic surface waves in anisotropic elastic solids Explicit conditions for the existence of exceptional body waves and subsonic surface waves in anisotropic elastic solids](/preview/png/1900275.png)
چکیده انگلیسی
It is known that a subsonic surface (Rayleigh) wave exists in an anisotropic elastic half-space x2 ⩾ 0 if the first transonic state is not of Type 1. If the first transonic state is of Type 1 but the limiting wave is not exceptional, a subsonic surface wave exists. If the first transonic state is of Type 1 and the limiting wave is exceptional, a subsonic surface wave exists when trL(Ï
Ë)⩽0. It is shown that an exceptional body wave is necessarily an exceptional transonic wave, and could be an exceptional limiting wave. Only two wave speeds are possible for an exceptional body wave. We present explicit conditions in terms of the reduced elastic compliances sαβⲠfor the existence of an exceptional body wave. If an exceptional body wave exists, conditions are given for identifying whether the transonic state is of Type 1. Hence, through the existence of an exceptional body wave we provide explicit conditions for the existence of a subsonic surface wave with the exception when trL(Ï
Ë) needs to be computed.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Wave Motion - Volume 46, Issue 5, August 2009, Pages 323-335
Journal: Wave Motion - Volume 46, Issue 5, August 2009, Pages 323-335
نویسندگان
T.C.T. Ting,