کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
512782 | 866428 | 2014 | 16 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Solution bound and nearly exact solution to nonlinear solid mechanics problems based on the smoothed FEM concept
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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: Solution bound and nearly exact solution to nonlinear solid mechanics problems based on the smoothed FEM concept Solution bound and nearly exact solution to nonlinear solid mechanics problems based on the smoothed FEM concept](/preview/png/512782.png)
چکیده انگلیسی
Node-based and edge-based smoothed FEM (NS-FEM and ES-FEM), and α-FEM are extended to solve nonlinear problems. The nonlinear strain field is smoothed using the gradient smoothing. The continuous scalar scaling factor α enables the α-FEM continuously transforming from overestimated model to underestimated model. Numerical examples reveal that ES-FEM is a robust and stable method with high accuracy and computational efficiency for nonlinear problems. The exact solution in strain energy of force driven problems can be bounded by NS-FEM and FEM. The α-FEM can also be “tuned” to find nearly exact solution to nonlinear mechanics problems of solids of complicated geometry.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Engineering Analysis with Boundary Elements - Volume 42, May 2014, Pages 99–114
Journal: Engineering Analysis with Boundary Elements - Volume 42, May 2014, Pages 99–114
نویسندگان
Zhi-Qian Zhang, G.R. Liu,