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A three dimensional plasticity model for perpendicular to grain cohesive fracture in wood

Danielsson, Henrik LU orcid and Gustafsson, Per-Johan LU (2013) In Engineering Fracture Mechanics 98. p.137-152
Abstract
A three dimensional cohesive zone model for perpendicular to grain wood fracture analysis is derived within the framework of plasticity theory and implemented for numerical calculations by the finite element method. The criterion used for strain instability and localization to a fracture plane is according to the orthotropic Tsai-Wu criterion accounting for all six stress components. The after localization plastic softening performance is governed by the three out-of-fracture plane stress and deformation components. The material model is applied to analyses of double cantilever beam specimens and end-notched beams. The results show in particular that stress and strength along grain may significantly affect perpendicular to grain fracture.... (More)
A three dimensional cohesive zone model for perpendicular to grain wood fracture analysis is derived within the framework of plasticity theory and implemented for numerical calculations by the finite element method. The criterion used for strain instability and localization to a fracture plane is according to the orthotropic Tsai-Wu criterion accounting for all six stress components. The after localization plastic softening performance is governed by the three out-of-fracture plane stress and deformation components. The material model is applied to analyses of double cantilever beam specimens and end-notched beams. The results show in particular that stress and strength along grain may significantly affect perpendicular to grain fracture. The two dimensional development of the fracture process zone is also studied as affected by varying material principal directions. (C) 2012 Elsevier Ltd. All rights reserved. (Less)
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author
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organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Wood, Fracture mechanics, Cohesive zone modeling, Plastic theory, Tsai-Wu
in
Engineering Fracture Mechanics
volume
98
pages
137 - 152
publisher
Elsevier
external identifiers
  • wos:000315830800011
  • scopus:84873022767
ISSN
1873-7315
DOI
10.1016/j.engfracmech.2012.12.008
language
English
LU publication?
yes
id
099e99a4-a692-4055-bd55-bd6c3968a83d (old id 3658150)
date added to LUP
2016-04-01 13:41:41
date last changed
2022-01-27 20:31:49
@article{099e99a4-a692-4055-bd55-bd6c3968a83d,
  abstract     = {{A three dimensional cohesive zone model for perpendicular to grain wood fracture analysis is derived within the framework of plasticity theory and implemented for numerical calculations by the finite element method. The criterion used for strain instability and localization to a fracture plane is according to the orthotropic Tsai-Wu criterion accounting for all six stress components. The after localization plastic softening performance is governed by the three out-of-fracture plane stress and deformation components. The material model is applied to analyses of double cantilever beam specimens and end-notched beams. The results show in particular that stress and strength along grain may significantly affect perpendicular to grain fracture. The two dimensional development of the fracture process zone is also studied as affected by varying material principal directions. (C) 2012 Elsevier Ltd. All rights reserved.}},
  author       = {{Danielsson, Henrik and Gustafsson, Per-Johan}},
  issn         = {{1873-7315}},
  keywords     = {{Wood; Fracture mechanics; Cohesive zone modeling; Plastic theory; Tsai-Wu}},
  language     = {{eng}},
  pages        = {{137--152}},
  publisher    = {{Elsevier}},
  series       = {{Engineering Fracture Mechanics}},
  title        = {{A three dimensional plasticity model for perpendicular to grain cohesive fracture in wood}},
  url          = {{http://dx.doi.org/10.1016/j.engfracmech.2012.12.008}},
  doi          = {{10.1016/j.engfracmech.2012.12.008}},
  volume       = {{98}},
  year         = {{2013}},
}