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Fundamental physical principles and cohesive zone models at finite displacements - Limitations and possibilities

Ottosen, Niels Saabye LU ; Ristinmaa, Matti LU and Mosler, Joern (2015) In International Journal of Solids and Structures 53. p.70-79
Abstract
Cohesive zone modeling at finite displacements and crack openings are discussed and evaluated in relation to the fundamental principles provided by thermodynamic consistency, balance of angular momentum and material frame indifference. It is shown that among the existing prototype cohesive zone models within the classical cohesive zone framework, only fully isotropic elastic models or fully isotropic elastic models combined with isotropic damage theory fulfill all of the aforementioned fundamental principles whereas present elasto-plastic models do not. For this reason, and still within the classical cohesive zone framework, a novel elasto-plastic model is proposed which fulfills all requirements. Subsequently, the classical cohesive zone... (More)
Cohesive zone modeling at finite displacements and crack openings are discussed and evaluated in relation to the fundamental principles provided by thermodynamic consistency, balance of angular momentum and material frame indifference. It is shown that among the existing prototype cohesive zone models within the classical cohesive zone framework, only fully isotropic elastic models or fully isotropic elastic models combined with isotropic damage theory fulfill all of the aforementioned fundamental principles whereas present elasto-plastic models do not. For this reason, and still within the classical cohesive zone framework, a novel elasto-plastic model is proposed which fulfills all requirements. Subsequently, the classical cohesive zone framework is generalized and within this new framework a consistent elasto-plastic model is proposed. (C) 2014 Elsevier Ltd. All rights reserved. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Cohesive zone models, Cracks, Large displacements, Angular momentum, Dissipation inequality, Objectivity, Principle of frame indifference
in
International Journal of Solids and Structures
volume
53
pages
70 - 79
publisher
Elsevier
external identifiers
  • wos:000347594300007
  • scopus:84912571583
ISSN
0020-7683
DOI
10.1016/j.ijsolstr.2014.10.020
language
English
LU publication?
yes
id
d1c7a0d2-160f-4638-b0bd-91c91e8a211e (old id 5053393)
date added to LUP
2015-02-24 10:13:15
date last changed
2017-08-06 04:02:57
@article{d1c7a0d2-160f-4638-b0bd-91c91e8a211e,
  abstract     = {Cohesive zone modeling at finite displacements and crack openings are discussed and evaluated in relation to the fundamental principles provided by thermodynamic consistency, balance of angular momentum and material frame indifference. It is shown that among the existing prototype cohesive zone models within the classical cohesive zone framework, only fully isotropic elastic models or fully isotropic elastic models combined with isotropic damage theory fulfill all of the aforementioned fundamental principles whereas present elasto-plastic models do not. For this reason, and still within the classical cohesive zone framework, a novel elasto-plastic model is proposed which fulfills all requirements. Subsequently, the classical cohesive zone framework is generalized and within this new framework a consistent elasto-plastic model is proposed. (C) 2014 Elsevier Ltd. All rights reserved.},
  author       = {Ottosen, Niels Saabye and Ristinmaa, Matti and Mosler, Joern},
  issn         = {0020-7683},
  keyword      = {Cohesive zone models,Cracks,Large displacements,Angular momentum,Dissipation inequality,Objectivity,Principle of frame indifference},
  language     = {eng},
  pages        = {70--79},
  publisher    = {Elsevier},
  series       = {International Journal of Solids and Structures},
  title        = {Fundamental physical principles and cohesive zone models at finite displacements - Limitations and possibilities},
  url          = {http://dx.doi.org/10.1016/j.ijsolstr.2014.10.020},
  volume       = {53},
  year         = {2015},
}