1. On calibration of orthotropic elastic-plastic constitutive models for paper foils by biaxial tests and inverse analyses.
- Author
-
Garbowski, Tomasz, Maier, Giulio, and Novati, Giorgio
- Subjects
- *
ARTIFICIAL neural networks , *PAPER products , *PAPER product manufacturing , *CARDBOARD , *DIGITAL image processing , *MATHEMATICAL programming , *ALGORITHMS - 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, ) 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. [ABSTRACT FROM AUTHOR]
- Published
- 2012
- Full Text
- View/download PDF