In this paper two procedures are developed for the identification of the parameters contained in an orthotropic elastic-plastic-hardening model for free standing foils, particularly of paper and paperboard. The experimental data considered are provided by cruciform tests and digital image correlation. A simplified version of the constitutive model proposed by Xia et al. (Int J. Solids Struct 39:4053–4071, 2002) is adopted. The inverse analysis is comparatively performed by the following alternative computational methodologies: (a)<mathematical programming by a trust-region algorithm; (b)<proper orthogonal decomposition and artificial neural network. The second procedure rests on preparatory once-for-all computations and turns out to be applicable economically and routinely in industrial environments.

On calibration of orthotropic elastic-plastic constitutive models for paper foils by biaxial tests and inverse analyses

GARBOWSKI, TOMASZ;MAIER, GIULIO;NOVATI, GIORGIO
2012

Abstract

In this paper two procedures are developed for the identification of the parameters contained in an orthotropic elastic-plastic-hardening model for free standing foils, particularly of paper and paperboard. The experimental data considered are provided by cruciform tests and digital image correlation. A simplified version of the constitutive model proposed by Xia et al. (Int J. Solids Struct 39:4053–4071, 2002) is adopted. The inverse analysis is comparatively performed by the following alternative computational methodologies: (a)
Paper foils; Parameter identification; Artificial neural networks
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11311/622365
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