Volume 22, Issue 4
From Energy Improvement to Accuracy Enhancement: Improvement of Plate Bending Elements by the Combined Hybrid Method
DOI:

J. Comp. Math., 22 (2004), pp. 581-592

Published online: 2004-08

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• Abstract

By following the geometric point of view in mechanics, a novel expression of the com- bined hybrid method for plate bending problems is introduced to clarify its intrinsic mech- anism of enhancing coarse-mesh accuracy of conforming or nonconforming plate elements. By adjusting the combination parameter $\alpha \in (0,1)$ and adopting appropriate bending moments modes, reduction of energy error for the discretized displacement model leads to enhanced numerical accuracy. As an application, improvement of Adini’s rectangle is discussed. Numerical experiments show that the combined hybrid counterpart of Adini’s element is capable of attaining high accuracy at coarse meshes.

• Keywords

Finite element Combined hybrid Energy error

• AMS Subject Headings

@Article{JCM-22-581, author = {}, title = {From Energy Improvement to Accuracy Enhancement: Improvement of Plate Bending Elements by the Combined Hybrid Method}, journal = {Journal of Computational Mathematics}, year = {2004}, volume = {22}, number = {4}, pages = {581--592}, abstract = { By following the geometric point of view in mechanics, a novel expression of the com- bined hybrid method for plate bending problems is introduced to clarify its intrinsic mech- anism of enhancing coarse-mesh accuracy of conforming or nonconforming plate elements. By adjusting the combination parameter $\alpha \in (0,1)$ and adopting appropriate bending moments modes, reduction of energy error for the discretized displacement model leads to enhanced numerical accuracy. As an application, improvement of Adini’s rectangle is discussed. Numerical experiments show that the combined hybrid counterpart of Adini’s element is capable of attaining high accuracy at coarse meshes. }, issn = {1991-7139}, doi = {https://doi.org/}, url = {http://global-sci.org/intro/article_detail/jcm/10307.html} }
TY - JOUR T1 - From Energy Improvement to Accuracy Enhancement: Improvement of Plate Bending Elements by the Combined Hybrid Method JO - Journal of Computational Mathematics VL - 4 SP - 581 EP - 592 PY - 2004 DA - 2004/08 SN - 22 DO - http://doi.org/ UR - https://global-sci.org/intro/article_detail/jcm/10307.html KW - Finite element KW - Combined hybrid KW - Energy error AB - By following the geometric point of view in mechanics, a novel expression of the com- bined hybrid method for plate bending problems is introduced to clarify its intrinsic mech- anism of enhancing coarse-mesh accuracy of conforming or nonconforming plate elements. By adjusting the combination parameter $\alpha \in (0,1)$ and adopting appropriate bending moments modes, reduction of energy error for the discretized displacement model leads to enhanced numerical accuracy. As an application, improvement of Adini’s rectangle is discussed. Numerical experiments show that the combined hybrid counterpart of Adini’s element is capable of attaining high accuracy at coarse meshes.