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Implementation of hierarchical single surface δ 0 and δ 1 models in finite element procedure
Author(s) -
Desai C. S.,
Sharma K. G.,
Wathugala G. W.,
Rigby D. B.
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.1610150904
Subject(s) - subroutine , fortran , computer science , minor (academic) , finite element method , code (set theory) , computational science , algorithm , surface (topology) , element (criminal law) , theoretical computer science , programming language , set (abstract data type) , mathematics , structural engineering , engineering , geometry , political science , law
Hierarchical single surface (HISS) δ 0 and δ 1 models are briefly discussed. An algorithm for the implementation of δ 0 and δ 1 models in a finite element code and the associated subroutines, written in FORTRAN 77, are presented. The algorithm is general and can be adopted for other computer codes with minor changes. Detailed steps and subroutines are included for easy implementation of the models in specific codes. Two example problems are also presented to enable the user to verify the implementation.