کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
510541 865773 2013 14 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Investigations on the polygonal finite element method: Constrained adaptive Delaunay tessellation and conformal interpolants
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه مهندسی کامپیوتر نرم افزارهای علوم کامپیوتر
پیش نمایش صفحه اول مقاله
Investigations on the polygonal finite element method: Constrained adaptive Delaunay tessellation and conformal interpolants
چکیده انگلیسی

We present a polygonal finite element method based on constrained adaptive Delaunay tessellation and conformal interpolants on arbitrary polygons. For mesh generation we use the adaptive Delaunay tessellation, an unstructured hybrid tessellation of a scattered point set that minimally covers the proximal space around each point, which is here extended to non-convex domains. Various types of polygonal interpolants are implemented. For the numerical integration of the Galerkin weak form we resort to classical Gaussian quadrature applied on triangular subdomains. The performance and efficiency of the interpolation and implementation are investigated for two dimensional elasticity in a stochastical analysis on random and regular meshes.


► Constrained adaptive Delaunay tessellation minimally covers proximal nodal space.
► Implementation and discussion of several conformal polygonal interpolants.
► Displacement patch test on random meshes with stochastic evaluation.
► Polygonal element formulation is robust against mesh distortion.
► Accurate and robust result for 2d elasticity application.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Computers & Structures - Volume 120, 15 April 2013, Pages 33–46
نویسندگان
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