Sull’identificazione del comportamento plastico di un acciaio a partire da misure a campo intero ottenute tramite correlazione digitale di immagini

MEDDA, ANDREA;DEMOFONTI G;ROUX S;HILD F;BERTOLINO, FILIPPO;BALDI, ANTONIO

2007-01-01

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Abstract

In the present work a method to obtain a true stress-true strain curve of an alloy by a full field digital image correlation measurement of the specimen surface kinematics, is presented. A preliminary set of parameters of a plasticity law is obtained to start up an automatized search algorithm, that includes, for each step a FE analysis in 3D. It’s also proposed a dual approach of the same search problem.