کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
510983 865807 2014 15 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
The MITC3 shell finite element enriched by interpolation covers
موضوعات مرتبط
مهندسی و علوم پایه مهندسی کامپیوتر نرم افزارهای علوم کامپیوتر
پیش نمایش صفحه اول مقاله
The MITC3 shell finite element enriched by interpolation covers
چکیده انگلیسی


• We propose a scheme to enrich the MITC3 shell finite element by interpolation covers.
• The scheme increases the solution accuracy without any mesh refinement.
• The enriched MITC3 shell element shows good convergence behavior.
• The various numerical results demonstrate the feasibility and effectiveness.

In this paper, we develop a scheme to enrich the 3-node triangular MITC shell finite element by interpolation cover functions. The MITC method is used for the standard and enriched displacement interpolations. The enriched 3-node shell finite element not only captures higher gradients but also decreases inter-elemental stress jumps. In particular, the enrichment scheme increases the solution accuracy without any traditional local mesh refinement. Convergence studies considering a fully clamped square plate problem, cylindrical shell problems, and hyperboloid shell problems demonstrate the good predictive capability of the enriched MITC3 shell finite element, even when distorted meshes are used. We evaluate the effectiveness of the method, and also illustrate the use of the enrichment scheme applied only locally through the solution of two additional shell problems: a shaft–shaft interaction problem and a monster shell problem.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Computers & Structures - Volume 134, 1 April 2014, Pages 128–142
نویسندگان
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