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A simple nonconform...
A simple nonconforming bilinear element for the elasticity problem
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- Hansbo, Peter (författare)
- Jönköping University,JTH. Forskningsmiljö Produktutveckling - Simulering och optimering
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Larson, M G (författare)
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Jönköping University JTH Forskningsmiljö Produktutveckling - Simulering och optimering (creator_code:org_t)
- BARCELONA : INT CENTER NUMERICAL METHODS ENGINEERING, 2001
- 2001
- Engelska.
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Ingår i: Trends in computational structural mechanics. - BARCELONA : INT CENTER NUMERICAL METHODS ENGINEERING. - 9788489925779 ; , s. 317-327
- Relaterad länk:
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https://urn.kb.se/re...
Abstract
Ämnesord
Stäng
- We look at the mixed non-conforming Rannacher-Turek (RT) element from the point of view of discontinuous Galerkin methods. In the case of the elasticity operator, for which the RT element is not stable in that it does not (in general) fulfill a discrete horn's inequality, the discontinuous framework naturally suggests the appearance of (weakly consistent) stabilization terms. We thus obtain a modifed, stable and locking free, version of the RT element for the elasticity problem. We also give some implementation aspects of the element. Numerical results are included.
Nyckelord
- nonconforming element
- Nitsche's method
- discontinuous finite element method
- incompressible problems
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