کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4965611 1448453 2017 13 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Prismatic semi-analytical elements for the simulation of linear elastic problems in structures with piecewise uniform cross section
موضوعات مرتبط
مهندسی و علوم پایه مهندسی کامپیوتر نرم افزارهای علوم کامپیوتر
پیش نمایش صفحه اول مقاله
Prismatic semi-analytical elements for the simulation of linear elastic problems in structures with piecewise uniform cross section
چکیده انگلیسی
This work addresses the computation of stiffness matrices for general prismatic structures with an arbitrary cross section. The presented approach is based on the scaled boundary finite element method (SBFEM), a semi-analytical method, which can be used to model structures by only discretizing the boundary of a domain. For prismatic structures, the process is further simplified, as only the cross section of the structure has to be discretized. Thus, a particular semi-analytical finite element is constructed for bounded and unbounded domains. The proposed approach leads to a frequency-dependent stiffness matrix. This stiffness matrix can easily be coupled to other prismatic SBFEM domains or general SBFEM domains. Necessary modifications to include forces along the scaling direction, such as body loads, are addressed. The results of the proposed approach are compared to those of traditional FEM models obtained using commercially available software.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Computers & Structures - Volume 192, November 2017, Pages 83-95
نویسندگان
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