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A residual force finite element approach to soil–structure interaction analysis
Author(s) -
Lai J. Y.,
Booker J. R.
Publication year - 1991
Publication title -
international journal for numerical and analytical methods in geomechanics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.419
H-Index - 91
eISSN - 1096-9853
pISSN - 0363-9061
DOI - 10.1002/nag.1610150304
Subject(s) - dilatant , residual , finite element method , slip (aerodynamics) , shear (geology) , soil structure interaction , geotechnical engineering , plasticity , compatibility (geochemistry) , mechanics , structural engineering , mathematics , materials science , engineering , physics , algorithm , composite material , aerospace engineering
An iterative process based upon a hybrid ‘residual force’ method is presented for solving elasto–plastic soil–structure interaction problems. In this approach the soil and the structure are treated as separate bodies and related only by compatibility of displacements and equilibrium of forces at the soil–structure interface. This scheme enables a significant improvement in numerical stability and rate of convergence over the conventional initial stress method. It is also shown that various interface conditions such as shear failure, slip and breakaway, and frictional and dilatant behaviour can be readily accounted for. Some practical aspects associated with the proposed scheme are emphasized for a number of numerical examples.