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Large strain elasto-plastic model of paper and corrugated board

In English

Författare

Summary, in English

An anisotropic elasto-plastic constitutive model of paper material is presented. It is formulated in a spatial setting in which anisotropic properties are accounted for by use of structural variables. A multiplicative split of the deformation gradient is employed to introduce plasticity. A similar approach is used to model the plastic deformation of the substructure. The yield surface adopted is based on the Tsai-Wu failure criterion, used previously to model failure of paper material. A non-associated plasticity theory is employed to calibrate the model to experimental data. It turns out that a multi-axial loading situation is needed to calibrate the model and here a biaxial tension test is audited. The model was implemented into a finite element environment and the creasing process of a corrugated board panel is investigated.

Avdelning/ar

Publiceringsår

2008

Språk

Engelska

Sidor

3334-3352

Publikation/Tidskrift/Serie

International Journal of Solids and Structures

Volym

45

Dokumenttyp

Artikel i tidskrift

Förlag

Elsevier

Ämne

  • Mechanical Engineering

Status

Published

ISBN/ISSN/Övrigt

  • ISSN: 0020-7683