Regularity for a geometrically nonlinear flat Cosserat micropolar membrane shell with curvature
Andreas Gastel
Universität Duisburg-Essen, Essen, GermanyPatrizio Neff
Universität Duisburg-Essen, Essen, Germany
Abstract
We consider the rigorously derived thin shell membrane -limit of a three-dimensional isotropic geometrically nonlinear Cosserat micropolar model and deduce full interior regularity of both the midsurface deformation and the orthogonal microrotation tensor field . The only further structural assumption is that the curvature energy depends solely on the uni-constant isotropic Dirichlet-type energy term . We use Rivière’s regularity techniques of harmonic-map-type systems for our system which couples harmonic maps to with a linear equation for . The additional coupling term in the harmonic map equation is of critical integrability and can only be handled because of its special structure.
Cite this article
Andreas Gastel, Patrizio Neff, Regularity for a geometrically nonlinear flat Cosserat micropolar membrane shell with curvature. Ann. Inst. H. Poincaré C Anal. Non Linéaire (2024), published online first
DOI 10.4171/AIHPC/108