کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
509847 865719 2011 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Mixed finite element formulations with volume bubble functions for triangular elements
موضوعات مرتبط
مهندسی و علوم پایه مهندسی کامپیوتر نرم افزارهای علوم کامپیوتر
پیش نمایش صفحه اول مقاله
Mixed finite element formulations with volume bubble functions for triangular elements
چکیده انگلیسی

This paper deals with volume bubble functions for mixed finite triangular elements in geometrically linear elasticity. In two different versions these functions are used in order to enrich the displacement field and the enhanced strain field, respectively. Appropriate conditions for satisfaction of the patch test are verified. In the numerical example, firstly the patch test is satisfied. Secondly, simulations of Cook’s membrane problem demonstrate that the proposed formulations avoid locking and reduce stress oscillations for incompressible materials.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Computers & Structures - Volume 89, Issues 21–22, November 2011, Pages 1844–1851
نویسندگان
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