Rotational dependence of the superconvergent patch recovery and its remedy for 4-node isoparametric quadrilateral elements
| العنوان: | Rotational dependence of the superconvergent patch recovery and its remedy for 4-node isoparametric quadrilateral elements |
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| المؤلفون: | Romesh C. Batra, Hyung-Seok Oh |
| المصدر: | Communications in Numerical Methods in Engineering. 15:493-499 |
| بيانات النشر: | Wiley, 1999. |
| سنة النشر: | 1999 |
| مصطلحات موضوعية: | Quadrilateral, Applied Mathematics, Numerical analysis, Mathematical analysis, General Engineering, Bilinear interpolation, Geometry, Superconvergence, Linear interpolation, Finite element method, Computational Theory and Mathematics, Modeling and Simulation, Boundary value problem, Rotation (mathematics), Software, Mathematics |
| الوصف: | The superconvergent patch recovery (SPR) with bilinear interpolation functions usually gives good values of recovered stresses in an element patch. However, when 4-node quadrilateral elements meeting at a node are rigidly rotated with the essential and natural boundary conditions unchanged, the recovered stresses obtained by the SPR change and depend upon the local rotation of the patch. This can be remedied either by including higher-order terms in the polynomials for the assumed stress distribution in an element patch, or by using linear interpolation functions, which gives inferior accuracy of the recovered stresses near the boundaries of the domain. Additional sampling points are suggested to compute the higher-order terms. |
| تدمد: | 1099-0887 1069-8299 |
| DOI: | 10.1002/(sici)1099-0887(199907)15:7<493::aid-cnm263>3.0.co;2-k |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_________::9b53654f0fee459e32edd891e398c133 https://doi.org/10.1002/(sici)1099-0887(199907)15:7<493::aid-cnm263>3.0.co;2-k |
| Rights: | CLOSED |
| رقم الانضمام: | edsair.doi...........9b53654f0fee459e32edd891e398c133 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 10990887 10698299 |
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| DOI: | 10.1002/(sici)1099-0887(199907)15:7<493::aid-cnm263>3.0.co;2-k |