Abstract
The theory for elliptic boundary value problems for general elliptic systems is used in order to investigate systematically corner singularities and regularity for weak solutions to a broad class of boundary value problems for the Reissner/Mindlin plate model in polygonal domains. The regularity results for the deflection of the midplane and for the rotation of fibers normal to the midplane are formulated in Sobolev spaces H s, where s>1 is a real number. The number s depends on the geometry, the material parameters and the boundary conditions in general and is related to a decomposition of the fields in a singular and a regular part. The leading singular terms are calculated for a wide class of boundary conditions (36 combinations). The results are critically compared with those known from a stress potential approach.
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Rössle, A., Sändig, AM. Corner Singularities and Regularity Results for the Reissner/Mindlin Plate Model. J Elast 103, 113–135 (2011). https://doi.org/10.1007/s10659-010-9258-5
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DOI: https://doi.org/10.1007/s10659-010-9258-5
Keywords
- Reissner-Mindlin plate
- Elliptic boundary value problem for systems
- Corner singularities
- Regularity results in polygons