کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
774113 1463206 2013 15 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Wave propagation in stiffened structures using spectrally formulated finite element
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی مکانیک
پیش نمایش صفحه اول مقاله
Wave propagation in stiffened structures using spectrally formulated finite element
چکیده انگلیسی

In this work, the wave propagation analysis of built-up composite structures is performed using frequency domain spectral finite elements, to study the high frequency wave responses. The paper discusses basically two methods for modeling stiffened structures. In the first method, the concept of assembly of 2D spectral plate elements is used to model a built-up structure. In the second approach, spectral finite element method (SFEM) model is developed to model skin-stiffener structures, where the skin is considered as plate element and the stiffener as beam element. The SFEM model developed using the plate–beam coupling approach is then used to model wave propagation in a multiple stiffened structure and also extended to model the stiffened structures with different cross sections such as T-section, I-section and hat section. A number of parametric studies are performed to capture the mode coupling, that is, the flexural–axial coupling present in the wave responses.


► We model wave propagation in built-up composite structures.
► The model use frequency domain based spectral finite element method (SFEM).
► Plate–beam coupling is introduced in SFEM to model stiffened structures.
► Wave propagation analysis is performed for multiple stiffened structures.
► Wave responses are obtained for stiffened structures with T, I or Hat section.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: European Journal of Mechanics - A/Solids - Volume 41, September–October 2013, Pages 1–15
نویسندگان
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