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An examination of the validation of a model of the hydro/thermo/mechanical behaviour of engineered clay barriers
Author(s) -
Thomas H. R.,
He Y.,
Onofrei C.
Publication year - 1998
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/(sici)1096-9853(199801)22:1<49::aid-nag908>3.0.co;2-i
Subject(s) - consolidation (business) , context (archaeology) , engineering , finite element method , work (physics) , civil engineering , software , geotechnical engineering , mechanical engineering , computer science , structural engineering , geology , paleontology , accounting , business , programming language
This paper focuses attention on the development of a numerical model of the hydro/thermo/mechanical behaviour of unsaturated clay and its consequent verification and validation. The work presented describes on‐going collaboration between the Cardiff School of Engineering and Atomic Energy of Canada. The model development, which was carried out at Cardiff, can be described as being based on a mechanistic approach to coupled heat, moisture and air flow. This is then linked to a deformation analysis of the material within a ‘consolidation’ type of model. The whole is solved via the finite element method to yield a computer software code named COMPASS (COde for Modelling PArtly Saturated Soil). Some aspects of verification and validation of the model have been addressed in‐house. However, the purpose of current AECL work is to provide an independent, rigorous, structured programme of validation and the paper will also explore the further validation of COMPASS within this context. © 1998 by John Wiley & Sons, Ltd.