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Simulation model for anisotropic fibrous materials
Author(s) -
Ask Anna,
Ristinmaa Matti
Publication year - 2008
Publication title -
pamm
Language(s) - English
Resource type - Journals
ISSN - 1617-7061
DOI - 10.1002/pamm.200810399
Subject(s) - orthotropic material , substructure , anisotropy , computer science , mechanical engineering , multiplicative function , variety (cybernetics) , materials science , engineering drawing , structural engineering , physics , engineering , finite element method , mathematics , mathematical analysis , artificial intelligence , quantum mechanics
Paper and paper–based materials such as cardboard are used in a wide variety of applications and in the development of new applications such as boxes an accurate simulation model is of major importance. Industrially made paper material typically has an orthotropic fibrous structure, due to the manufacturing process, where the fibers tend to align in the direction of motion in the machine. In this work a plasticity–based material model allowing for finite strains is developed. The model is suitable for materials with an anisotropic fibrous structure such as paper. The general framework is based on separate mappings describing the deformations of the continuum and the substructure and a multiplicative split of these mappings into elastic and plastic parts. (© 2008 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)