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A coupled finite element–rigid block method for transient analysis of rock caverns
Author(s) -
Dowding C. H.,
Belytschko T. B.,
Yen H. J.
Publication year - 1983
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.1610070111
Subject(s) - finite element method , transient (computer programming) , coupling (piping) , block (permutation group theory) , representation (politics) , rock mass classification , extended finite element method , stress (linguistics) , structural engineering , geology , mechanics , geotechnical engineering , computer science , geometry , engineering , mathematics , physics , mechanical engineering , linguistics , philosophy , politics , law , political science , operating system
A coupled finite element–rigid block model for the transient analysis of caverns in jointed media is presented. This coupling permits the modelling of lined openings in a jointed rock mass as well as the propagation of stress waves to the cavern. Both the finite element and the rigid block algorithms employ explicit time integration; an efficient, stable scheme is developed for coupling the two algorithms. Two numerical examples are given: one is a simple validation, the second is a representation of a lined cavern in a sparsely jointed medium.