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Orthotropic elastic-plastic material model for paper materials
KTH, Superseded Departments, Solid Mechanics.ORCID iD: 0000-0001-8699-7910
2003 (English)In: International Journal of Solids and Structures, ISSN 0020-7683, E-ISSN 1879-2146, Vol. 40, no 21, 5599-5620 p.Article in journal (Refereed) Published
Abstract [en]

Paper and paperboard generally exhibit anisotropic and non-linear mechanical material behaviour. In this work, the development of an orthotropic elastic plastic constitutive model, suitable for modelling of the material behaviour of paper is presented. The anisotropic material behaviour is introduced into the model by orthotropic elasticity and an isotropic plasticity equivalent transformation tensor. A parabolic stress-strain relation is adopted to describe the hardening of the material. The experimental and numerical procedures for evaluation of the required material parameters for the model are described. Uniaxial tensile testing in three different inplane material directions provides the calibration of the material parameters under plane stress conditions. The numerical implementation of the material model is presented and the model is shown to perform well in agreement with experimentally observed mechanical behaviour of paper.

Place, publisher, year, edition, pages
2003. Vol. 40, no 21, 5599-5620 p.
Keyword [en]
orthotropic, elastic-plastic, materials
URN: urn:nbn:se:kth:diva-22796DOI: 10.1016/s0020-7683(03)00318-4ISI: 000185219300005OAI: diva2:341494
QC 20100525Available from: 2010-08-10 Created: 2010-08-10Bibliographically approved

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Östlund, Sören
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