کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
511700 | 865896 | 2009 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
An improved adaptive formulation for the computation of limit analysis problems of thin axisymmetrical shells
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی کامپیوتر
نرم افزارهای علوم کامپیوتر
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: An improved adaptive formulation for the computation of limit analysis problems of thin axisymmetrical shells An improved adaptive formulation for the computation of limit analysis problems of thin axisymmetrical shells](/preview/png/511700.png)
چکیده انگلیسی
An improved adaptive technique for the finite element formulation of limit analysis problems of symmetrically loaded thin shells of revolution is presented. Bending, membrane behavior and changes of curvature are simulated by using an axisymmetrical thin shell element of three nodes associated with a new piecewise linear (PWL) yield surface. The results obtained show better upper bounds when compared to other numerical and analytical solutions reported in the literature. Finally, an a posteriori error measure is re-written to include the new displacement rate and PWL strain rate fields, resulting in an adaptive scheme for refining the finite element mesh.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Computers & Structures - Volume 87, Issues 23–24, December 2009, Pages 1602–1610
Journal: Computers & Structures - Volume 87, Issues 23–24, December 2009, Pages 1602–1610
نویسندگان
José Ricardo Queiroz Franco, Felício Bruzzi Barros, Alan R.S. Ponter,