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Virtual geotechnical laboratory experiments using a simulator
Author(s) -
Penumadu Dayakar,
Zhao Rongda,
Frost David
Publication year - 2000
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(20000425)24:5<439::aid-nag74>3.0.co;2-g
Subject(s) - simulation , computer science , software , set (abstract data type) , programming language
The details of a test simulator that provides a realistic environment for performing virtual laboratory experimentals in soil mechanics is presented. A computer program ‘Geo‐Sim’ that can be used to perform virtual experiments, and allow for real‐time observations of material response is presented. The results of experiments, for a given set of input parameters, are obtained with the test simulator using well‐trained artificial neural‐network‐based soil models for different soil types and stress paths. Multimedia capabilities are integrated in Geo‐Sim, using software that links and controls a laser disc player with a real‐time parallel processing ability. During the simulation of a virtual experiment, relevant portions of the video image of a previously recorded test on an actual soil specimen are dispalyed along with the graphical presentation of response from the feedforward ANN model predictions. The pilot simulator developed to date includes all aspects related to performing a triaxial test on cohesionless soil under undrained and drained conditions. The benefits of the test simulator are also presented. Copyright © 2000 John Wiley & Sons, Ltd.