Header menu link for other important links
X
An r-h adaptive strategy based on material forces and error assessment
Published in
2004
Volume: 1
   
Issue: 3
Pages: 229 - 243
Abstract
A new r-h adaptive scheme is proposed and formulated. It involves a combination of the configurational force based r-adaption with weighted Laplacian smoothing and mesh enrichment by h-refinement. A Zienkiewicz-Zhu best guess stress error estimator is used in the h-refinement strategy. The best sequence for combining the effectiveness of r- and h- adaption has been evolved at in this study. A further reduction in the potential energy and the relative error norm of the system is found to be achieved with combined r-adaption and mesh enrichment (in the form h-refinement). Numerical study confirms that the proposed combined r-h adaption is more efficient than a purely h-adaptive approach and more flexible than a purely r-adaptive approach with better convergence characteristics.
About the journal
JournalComputers, Materials and Continua
ISSN15462218
Open AccessNo
Concepts (13)
  •  related image
    Algorithms
  •  related image
    Computational methods
  •  related image
    Degrees of freedom (mechanics)
  •  related image
    Finite element method
  •  related image
    Potential energy
  •  related image
    Problem solving
  •  related image
    Robustness (control systems)
  •  related image
    Stress analysis
  •  related image
    DISCRETIZATION ERROR
  •  related image
    ERROR ASSESSMENT
  •  related image
    MATERIAL FORCES
  •  related image
    POLAK-REBIERE ALGORITHMS
  •  related image
    MATERIALS SCIENCE