Multipoint stress mixed finite element methods for the linear Cosserat equations

Fuente: arXiv
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Autori principali: Boon, Wietse M., Fumagalli, Alessio, Nordbotten, Jan M., Yotov, Ivan
Natura: Preprint
Pubblicazione: 2025
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author Boon, Wietse M.
Fumagalli, Alessio
Nordbotten, Jan M.
Yotov, Ivan
author_facet Boon, Wietse M.
Fumagalli, Alessio
Nordbotten, Jan M.
Yotov, Ivan
contents We propose mixed finite element methods for Cosserat materials that use suitable quadrature rules to eliminate the Cauchy and coupled stress variables locally. The reduced system consists of only the displacement and rotation variables. Four variants are proposed for which we show stability and convergence using a priori estimates. Numerical experiments verify the theoretical findings and higher order convergence is observed in some variables.
format Preprint
id arxiv_https___arxiv_org_abs_2511_06861
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Multipoint stress mixed finite element methods for the linear Cosserat equations
Boon, Wietse M.
Fumagalli, Alessio
Nordbotten, Jan M.
Yotov, Ivan
Numerical Analysis
We propose mixed finite element methods for Cosserat materials that use suitable quadrature rules to eliminate the Cauchy and coupled stress variables locally. The reduced system consists of only the displacement and rotation variables. Four variants are proposed for which we show stability and convergence using a priori estimates. Numerical experiments verify the theoretical findings and higher order convergence is observed in some variables.
title Multipoint stress mixed finite element methods for the linear Cosserat equations
topic Numerical Analysis
url https://arxiv.org/abs/2511.06861