## Abstract The positivity preserving property for the biharmonic operator with Dirichlet boundary condition is investigated. We discuss here the case where the domain is an ellipse (that may degenerate to a strip) and the data is a polynomial function. We provide various conditions for which the p
A free boundary problem and stability for the rectangular plate
β Scribed by Erich Miersemann; Hans D. Mittelmann
- Publisher
- John Wiley and Sons
- Year
- 1990
- Tongue
- English
- Weight
- 419 KB
- Volume
- 12
- Category
- Article
- ISSN
- 0170-4214
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β¦ Synopsis
In the recent paper [13] we have answered the question of stability for the linear circular plate which is being axially compressed by a force greater than the critical value and contacts a plane obstacle. In this case there are radially symmetric solutions and the contact region is a disk of a smaller radius. This simplified the determination of the critical parameter values for which the plane jumps to another state. For the rectangular plate continuation has to be applied to the variational inequality in order to determine the contact region and evaluate the stability criterion. A numerical method is developed for a discretization of the problem and is used to compute the critical load both in the simply supported and the clamped case.
π SIMILAR VOLUMES
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