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An in-plane phase-field ductile fracture model for orthotropic paperboard material

Marengo, Alessandro ; Perego, Umberto ; Borgqvist, Eric LU ; Tryding, Johan LU and Ristinmaa, Matti LU orcid (2024) In International Journal of Solids and Structures 294.
Abstract

A phase-field ductile fracture formulation for orthotropic paperboard materials is proposed, based on an anisotropic, multi-surface elastoplastic model describing the in-plane behavior of paperboard. A variational statement for the finite-step elastoplastic problem is extended to include the variational description of Griffith-type brittle fracture by a phase-field gradient term. The interaction between plastic and fracture dissipation mechanisms is modeled by introducing a scalar modulation function, assuming plasticity driven damage growth. This function depends on a scalar measure of the plastic strain components in the material orthotropy frame. It modifies the fracture activation criterion in a non-variational fashion, resulting in... (More)

A phase-field ductile fracture formulation for orthotropic paperboard materials is proposed, based on an anisotropic, multi-surface elastoplastic model describing the in-plane behavior of paperboard. A variational statement for the finite-step elastoplastic problem is extended to include the variational description of Griffith-type brittle fracture by a phase-field gradient term. The interaction between plastic and fracture dissipation mechanisms is modeled by introducing a scalar modulation function, assuming plasticity driven damage growth. This function depends on a scalar measure of the plastic strain components in the material orthotropy frame. It modifies the fracture activation criterion in a non-variational fashion, resulting in a direction-dependent material strength against crack propagation. The model performance is assessed by comparing numerical simulations and experimental tests conducted in a climate-controlled laboratory.

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author
; ; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Ductile fracture, Effective stress, Orthotropy, Paperboard, Phase field
in
International Journal of Solids and Structures
volume
294
article number
112763
publisher
Elsevier
external identifiers
  • scopus:85188653679
ISSN
0020-7683
DOI
10.1016/j.ijsolstr.2024.112763
language
English
LU publication?
yes
id
b76b0ee5-59db-4d04-9022-9b6b9b1a42b4
date added to LUP
2024-04-17 09:56:14
date last changed
2024-04-17 09:57:22
@article{b76b0ee5-59db-4d04-9022-9b6b9b1a42b4,
  abstract     = {{<p>A phase-field ductile fracture formulation for orthotropic paperboard materials is proposed, based on an anisotropic, multi-surface elastoplastic model describing the in-plane behavior of paperboard. A variational statement for the finite-step elastoplastic problem is extended to include the variational description of Griffith-type brittle fracture by a phase-field gradient term. The interaction between plastic and fracture dissipation mechanisms is modeled by introducing a scalar modulation function, assuming plasticity driven damage growth. This function depends on a scalar measure of the plastic strain components in the material orthotropy frame. It modifies the fracture activation criterion in a non-variational fashion, resulting in a direction-dependent material strength against crack propagation. The model performance is assessed by comparing numerical simulations and experimental tests conducted in a climate-controlled laboratory.</p>}},
  author       = {{Marengo, Alessandro and Perego, Umberto and Borgqvist, Eric and Tryding, Johan and Ristinmaa, Matti}},
  issn         = {{0020-7683}},
  keywords     = {{Ductile fracture; Effective stress; Orthotropy; Paperboard; Phase field}},
  language     = {{eng}},
  month        = {{05}},
  publisher    = {{Elsevier}},
  series       = {{International Journal of Solids and Structures}},
  title        = {{An in-plane phase-field ductile fracture model for orthotropic paperboard material}},
  url          = {{http://dx.doi.org/10.1016/j.ijsolstr.2024.112763}},
  doi          = {{10.1016/j.ijsolstr.2024.112763}},
  volume       = {{294}},
  year         = {{2024}},
}