کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6916360 | 862939 | 2016 | 59 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Hybrid-mixed ANS finite elements for stress analysis of laminated composite structures: Sampling surfaces plate formulation
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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: Hybrid-mixed ANS finite elements for stress analysis of laminated composite structures: Sampling surfaces plate formulation Hybrid-mixed ANS finite elements for stress analysis of laminated composite structures: Sampling surfaces plate formulation](/preview/png/6916360.png)
چکیده انگلیسی
A hybrid-mixed ANS four-node quadrilateral plate element through the use of the sampling surfaces (SaS) technique is developed. The SaS formulation is based on choosing inside the nth layer In not equally spaced SaS parallel to the middle surface, in order to introduce the displacements of these surfaces as basic plate variables. Such choice of unknowns with utilizing the Lagrange polynomials of degree Inâ1 in the thickness direction for each layer leads to a very compact form of the governing equations. The SaS are located inside each layer at Chebyshev polynomial nodes that allows one to minimize uniformly the error due to the Lagrange interpolation. To avoid shear locking and have no spurious zero energy modes, the hybrid-mixed method and the ANS concept are employed. The developed four-node quadrilateral laminated plate element passes patch tests and exhibits a superior performance in the case of coarse distorted mesh configurations. It can be useful for the 3D stress analysis of thick and thin laminated composite plates because the SaS formulation gives the possibility to obtain the numerical solutions with a prescribed accuracy, which asymptotically approach the exact solutions of elasticity as the number of SaS tends to infinity.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Computer Methods in Applied Mechanics and Engineering - Volume 303, 1 May 2016, Pages 374-399
Journal: Computer Methods in Applied Mechanics and Engineering - Volume 303, 1 May 2016, Pages 374-399
نویسندگان
G.M. Kulikov, S.V. Plotnikova,