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Fig. 9.
Exampleofsingle-pointcrossoveroftwoindividuals
bitstringsbetweentworandomlyselectedindividuals.Thetypicalsingle-point
crossoveroperationispresentedinFig.9.
Aftermutationandcrossoveroperationsthefitnessfunctionvalue(3)iscal-
culatedagainforallindividuals.Thealgorithmisterminatedifthestopcriteria
isfulfilled.Inthisversionoftheprogram,theGAprocedurewasstoppedafter
afixednumberofiterations.
5 Modeling and Identification Results
Tocalculatethefitnessfunctionvalue(hereexpressedasthevalueofthestress),
theexperimentaldatahastobeapproximated.Theapproximationprocesshas
beenappliedusingthefittingcurveprocedurefromthe
SigmaPlot
software.The
exampleofthisprocedureisillustratedinFig.10.
Fig. 10.
The approximated values of averaged values of experiment. Blue points -
experiment,greenlines-fittedvalues.
AlthoughinthepreviousworkoftheauthorstheGubanovmodelcalibration
processmettheexpectationsforasinglecompressiontest([8]),atthispointof
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