Specht Triangle Approximation of Large Bending Isometries

Specht Triangle Approximation of Large Bending Isometries

Year:    2023

Author:    Xiang Li, Pingbing Ming

Annals of Applied Mathematics, Vol. 39 (2023), Iss. 4 : pp. 544–569

Abstract

We propose a Specht triangle discretization for a geometrically nonlinear Kirchhoff plate model with large bending isometry. A combination of an adaptive time-stepping gradient flow and a Newton’s method is employed to solve the ensuing nonlinear minimization problem. $\Gamma$−convergence of the Specht triangle discretization and the unconditional stability of the gradient flow algorithm are proved. We present several numerical examples to demonstrate that our approach significantly enhances both the computational efficiency and accuracy.

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Journal Article Details

Publisher Name:    Global Science Press

Language:    English

DOI:    https://doi.org/10.4208/aam.OA-2023-0020

Annals of Applied Mathematics, Vol. 39 (2023), Iss. 4 : pp. 544–569

Published online:    2023-01

AMS Subject Headings:    Global Science Press

Copyright:    COPYRIGHT: © Global Science Press

Pages:    26

Keywords:    Specht triangle plate bending isometry constraint adaptive time-stepping gradient flow.

Author Details

Xiang Li

Pingbing Ming