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An anisotropic in-plane and out-of-plane elasto-plastic model for paperboar

Borgqvist, Eric LU ; Wallin, Mathias LU ; Tryding, Johan LU and Ristinmaa, Matti LU (2015) In Composite Structures 126. p.184-195
Abstract
A continuum model of paperboard material possessing a high degree of anisotropy is established. To handle the anisotropy, three vectors are introduced which phenomenologically represent the preferred directions of the material. The in-plane director vectors deform as line segments and the out-of-plane direction deforms as a normal vector. This allows for a decoupling of the in-plane and the out-of-plane responses in shearing. The model is developed for large plastic strains and consequently an expression for the plastic spin has been proposed. The choice of plastic spin allows for a control of the direction in which permanent deformations will occur. To show the predictive capabilities of the model, the important industrial process of... (More)
A continuum model of paperboard material possessing a high degree of anisotropy is established. To handle the anisotropy, three vectors are introduced which phenomenologically represent the preferred directions of the material. The in-plane director vectors deform as line segments and the out-of-plane direction deforms as a normal vector. This allows for a decoupling of the in-plane and the out-of-plane responses in shearing. The model is developed for large plastic strains and consequently an expression for the plastic spin has been proposed. The choice of plastic spin allows for a control of the direction in which permanent deformations will occur. To show the predictive capabilities of the model, the important industrial process of creasing is simulated. Both the simplified line crease setup, as well as the actual rotation crease setup used in industrial applications are studied. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Composite Structures
volume
126
pages
184 - 195
publisher
Elsevier
external identifiers
  • wos:000353425600016
  • scopus:84924726900
ISSN
1879-1085
DOI
10.1016/j.compstruct.2015.02.067
language
English
LU publication?
yes
id
483b33a8-a2ab-49f7-99e1-afb90909c6a3 (old id 5276292)
date added to LUP
2015-04-17 13:42:04
date last changed
2017-08-27 03:34:06
@article{483b33a8-a2ab-49f7-99e1-afb90909c6a3,
  abstract     = {A continuum model of paperboard material possessing a high degree of anisotropy is established. To handle the anisotropy, three vectors are introduced which phenomenologically represent the preferred directions of the material. The in-plane director vectors deform as line segments and the out-of-plane direction deforms as a normal vector. This allows for a decoupling of the in-plane and the out-of-plane responses in shearing. The model is developed for large plastic strains and consequently an expression for the plastic spin has been proposed. The choice of plastic spin allows for a control of the direction in which permanent deformations will occur. To show the predictive capabilities of the model, the important industrial process of creasing is simulated. Both the simplified line crease setup, as well as the actual rotation crease setup used in industrial applications are studied.},
  author       = {Borgqvist, Eric and Wallin, Mathias and Tryding, Johan and Ristinmaa, Matti},
  issn         = {1879-1085},
  language     = {eng},
  pages        = {184--195},
  publisher    = {Elsevier},
  series       = {Composite Structures},
  title        = {An anisotropic in-plane and out-of-plane elasto-plastic model for paperboar},
  url          = {http://dx.doi.org/10.1016/j.compstruct.2015.02.067},
  volume       = {126},
  year         = {2015},
}