An in-plane phase-field ductile fracture model for orthotropic paperboard material
(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
- Marengo, Alessandro ; Perego, Umberto ; Borgqvist, Eric LU ; Tryding, Johan LU and Ristinmaa, Matti LU
- organization
- publishing date
- 2024-05-15
- 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}}, }