16 April 2014
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Paper Information

Identification of errors in constitutive models by sensitivity analysis

Author(s): M.H. Meuwissen, C.W. Oomens, F.E. Veldpaus & J.D. Janssen

Abstract:
An approach for adjustment of defects in constitutive models is presented. First, the parameters in an initial model are determined from a measured dis- placement field and the residuals are analysed.

If the residuals are unaccept- able, a set of candidate model extensions is specified.

From this set, the 'best' model extension is selected by performing a sensitivity analysis.

By means of numerical simulations, it is shown that this approach can be applied to find the 'best' model for a class of inhomogeneous materials in a fast way.

1 Introduction:
. To characterise the mechanical behaviour of a material quantitatively, a constitutive model must be chosen and the parameters in this model must be determined.

In ...

Pages: 10
Size: 804 kb
Paper DOI: 10.2495/CP960071

 

 

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Computer aided design in Composite Technology V

Computer aided design  in Composite Technology V

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