کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
8130139 1523196 2017 21 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Rayleigh-type waves in nonlocal micropolar solid half-space
ترجمه فارسی عنوان
امواج ریلی نوعی در فضای نیمه جامد ناهمسانی میکروپولار
کلمات کلیدی
غیر محلی میکروپولار جامد الاستیک امواج ریلی، پراکندگی، سرعت فاز،
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم آکوستیک و فرا صوت
چکیده انگلیسی
Propagation of Rayleigh type surface waves in nonlocal micropolar elastic solid half-space has been investigated. Two modes of Rayleigh-type waves are found to propagate under certain approximations. Frequency equations of these Rayleigh type modes and their conditions of existence have been derived. These frequency equations are found to be dispersive in character due to the presence of micropolarity and nonlocality parameters in the medium. One of the frequency equations is a counterpart of the classical Rayleigh waves and the other is new and has appeared due to micropolarity of the medium. Phase speeds of these waves are computed numerically for Magnesium crystal and their variation against wavenumber are presented graphically. Comparisons have been made between the phase speeds of Rayleigh type waves through nonlocal micropolar, local micropolar and elastic solid half-spaces.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Ultrasonics - Volume 73, January 2017, Pages 162-168
نویسندگان
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