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Elasto‐plastic analysis of an underground opening by FEM and coupled FEBEM
Author(s) -
Varadarajan A.,
Sharma K. G.,
Singh R. B.
Publication year - 1987
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.1610110504
Subject(s) - finite element method , structural engineering , computation , stress (linguistics) , coupling (piping) , principal stress , finite element limit analysis , extended finite element method , materials science , mechanics , engineering , mathematics , composite material , physics , algorithm , shear stress , linguistics , philosophy
Abstract The elasto‐plastic analysis of a circular underground opening using the finite element method (FEM), the coupled finite element and the boundary element method (FEBEM) is presented. The coupling procedure and elasto‐plastic formulation are discussed. The effect of in situ stress ratio on yielded zone, displaced shape and principal stresses is presented. The results of FEBEM analysis are compared with those obtained from FEM. The computation time and the number of iterations as required by FEBEM and FEM are compared.