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Continuum approach to high-cycle fatigue modeling

Ottosen, Niels Saabye LU ; Stenström, Robert and Ristinmaa, Matti LU (2008) In International Journal of Fatigue 30. p.996-1006
Abstract
A continuum approach to modeling of high-cycle fatigue is proposed. The approach takes a very simple and appealing form and is based on the concepts of a moving endurance surface in the stress space and an evolving damage variable. If the stress state is inside the endurance surface, no damage development occurs whereas damage may develop if the stress state is outside the surface. The endurance surface may move in the stress space as a function of the stress history. The theory is formulated within a proper continuum mechanics framework and it treats uniaxial and multiaxial stress states in a unified manner for arbitrary load histories. A unique feature of the theory is that it allows for the concepts of fatigue limits and accumulation of... (More)
A continuum approach to modeling of high-cycle fatigue is proposed. The approach takes a very simple and appealing form and is based on the concepts of a moving endurance surface in the stress space and an evolving damage variable. If the stress state is inside the endurance surface, no damage development occurs whereas damage may develop if the stress state is outside the surface. The endurance surface may move in the stress space as a function of the stress history. The theory is formulated within a proper continuum mechanics framework and it treats uniaxial and multiaxial stress states in a unified manner for arbitrary load histories. A unique feature of the theory is that it allows for the concepts of fatigue limits and accumulation of damage during the load history and thereby avoids cycle-counting techniques. Predictions of the theory are compared with experimental data and the agreement turns out to be close. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Damage, Continuum mechanics, Out-of-phase loading, Fatigue modeling
in
International Journal of Fatigue
volume
30
pages
996 - 1006
publisher
Elsevier
external identifiers
  • wos:000255068800005
  • scopus:40649115735
ISSN
1879-3452
DOI
10.1016/j.ijfatigue.2007.08.009
language
English
LU publication?
yes
id
bd6c90ac-3620-4741-b165-d48ee106a2aa (old id 609552)
date added to LUP
2008-01-27 18:18:50
date last changed
2017-05-07 04:35:45
@article{bd6c90ac-3620-4741-b165-d48ee106a2aa,
  abstract     = {A continuum approach to modeling of high-cycle fatigue is proposed. The approach takes a very simple and appealing form and is based on the concepts of a moving endurance surface in the stress space and an evolving damage variable. If the stress state is inside the endurance surface, no damage development occurs whereas damage may develop if the stress state is outside the surface. The endurance surface may move in the stress space as a function of the stress history. The theory is formulated within a proper continuum mechanics framework and it treats uniaxial and multiaxial stress states in a unified manner for arbitrary load histories. A unique feature of the theory is that it allows for the concepts of fatigue limits and accumulation of damage during the load history and thereby avoids cycle-counting techniques. Predictions of the theory are compared with experimental data and the agreement turns out to be close.},
  author       = {Ottosen, Niels Saabye and Stenström, Robert and Ristinmaa, Matti},
  issn         = {1879-3452},
  keyword      = {Damage,Continuum mechanics,Out-of-phase loading,Fatigue modeling},
  language     = {eng},
  pages        = {996--1006},
  publisher    = {Elsevier},
  series       = {International Journal of Fatigue},
  title        = {Continuum approach to high-cycle fatigue modeling},
  url          = {http://dx.doi.org/10.1016/j.ijfatigue.2007.08.009},
  volume       = {30},
  year         = {2008},
}