Negative penalty functions in the element-free Galerkin method
β Scribed by Askes, Harm ;Pannachet, Tanyada
- Publisher
- John Wiley and Sons
- Year
- 2005
- Tongue
- English
- Weight
- 46 KB
- Volume
- 21
- Category
- Article
- ISSN
- 1069-8299
- DOI
- 10.1002/cnm.733
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π SIMILAR VOLUMES
A new formulation of the Element Free Galerkin (EFG) method is developed for the modelling of incompressible materials. Beginning with a mixed variational principle, a selective reduced integration procedure is developed by implementing nodal quadrature. Numerical examples are provided which compare
In element free Galerkin method (EFGM), only nodal data are necessary, there is no need to join nodes into elements; in addition, high accuracy can be achieved and postprocess is easy. In this paper, how to deal with point loads in EFGM is suggested and this is followed by related examples.
## Abstract A major drawback of the penalty function method in solving constrained variational problems is the difficulty in choosing suitable penalty parameters that are large enough to effect a constraint but small enough to avoid computational problems. This problem stems from the fact that the