Error Estimates of Morley Triangular Element Satisfying the Maximal Angle Condition

Error Estimates of Morley Triangular Element Satisfying the Maximal Angle Condition

Year:    2010

Author:    S. Mao, S. Nicaise, Z.-C. Shi

International Journal of Numerical Analysis and Modeling, Vol. 7 (2010), Iss. 4 : pp. 639–655

Abstract

In this paper, we establish the convergence of a nonconforming triangular Morley element for the plate bending problem on degenerate meshes. An explicit bound for the interpolation error is derived for arbitrary triangular meshes without any assumptions. The optimal convergence rates of the moment error and rotation error are derived for triangular meshes satisfying the maximal angle condition. Our results can also be extended to the three dimensional Morley element presented recently in [41]. Finally, some numerical results are reported that confirm our theoretical results.

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Journal Article Details

Publisher Name:    Global Science Press

Language:    English

DOI:    https://doi.org/2010-IJNAM-743

International Journal of Numerical Analysis and Modeling, Vol. 7 (2010), Iss. 4 : pp. 639–655

Published online:    2010-01

AMS Subject Headings:    Global Science Press

Copyright:    COPYRIGHT: © Global Science Press

Pages:    17

Keywords:    Morley element plate elements plate bending problems maximal angle condition.

Author Details

S. Mao

S. Nicaise

Z.-C. Shi