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Search: L773:9788489925779

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1.
  • Hansbo, Peter, et al. (author)
  • A simple nonconforming bilinear element for the elasticity problem
  • 2001
  • In: Trends in computational structural mechanics. - BARCELONA : INT CENTER NUMERICAL METHODS ENGINEERING. - 9788489925779 ; , s. 317-327
  • Conference paper (other academic/artistic)abstract
    • 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.
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2.
  • Larsson, Fredrik, et al. (author)
  • Computation of goal-oriented a posteriori error measures in space-time finite elements for viscoplasticity
  • 2001
  • In: Trends in computational structural mechanics. - Barcelona : INT CENTER NUMERICAL METHODS ENGINEERING. - 9788489925779 ; , s. 499-510
  • Conference paper (other academic/artistic)abstract
    • We establish goal oriented residual-based a posteriori error estimates for problems in viscoplasticity. The error estimates can be used to control the spatial meshsize as well as the time step size. To this end, we use standard finite elements in space and the discontinuous Galerkin method in time.
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  • Result 1-2 of 2
Type of publication
conference paper (2)
Type of content
other academic/artistic (2)
Author/Editor
Hansbo, Peter (2)
Larsson, Fredrik (1)
Larson, M. G. (1)
Runesson, Kenneth (1)
University
Jönköping University (2)
Language
English (2)
Year
2001 (2)

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