کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
6924931 1448669 2018 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Dynamic Green's functions for multiple circular inclusions with imperfect interfaces using the collocation multipole method
ترجمه فارسی عنوان
توابع پویای سبز برای ورودی های چندگانه دایره ای با رابط های ناقص با استفاده از روش چند زاویه جابجایی
کلمات کلیدی
عملکرد دینامیک سبز، ضد هواپیما، ورودی، رابط کاربری نامناسب روش چند زاویه همبستگی،
موضوعات مرتبط
مهندسی و علوم پایه مهندسی کامپیوتر نرم افزارهای علوم کامپیوتر
چکیده انگلیسی
This paper presents a semi-analytical approach to solve anti-plane dynamic Green's functions for an elastic infinitely extended isotropic solid (matrix) containing multiple circular inclusions with imperfect interfaces. A linear spring model with vanishing thickness is employed to character the imperfect interface. The multipole expansions of anti-plane displacement of the matrix and inclusion, induced by a time-harmonic anti-plane line force located in the matrix or in the inclusion, are expanded by using Hankel and Bessel functions, respectively. The imperfect interface condition is satisfied by uniformly collocating points along the interface of each inclusion. For the imperfect interface condition, the normal derivative of the anti-plane displacement with respect to a non-local polar coordinate system is developed without any truncation error for multiply-connected domain problems. For the case of one circular inclusion, the proposed quasi-static stress field matches well with the analytical static solution. The proposed quasi-static stress fields containing two and three circular inclusions are critically compared with those calculated by static analysis using the finite element method. Finally, extensive studies are presented to investigate the effects of the frequency of excitation, imperfect interface and separation between inclusions on the dynamic Green's functions.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Engineering Analysis with Boundary Elements - Volume 94, September 2018, Pages 113-121
نویسندگان
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