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Smeared Crack analysis Using a Generalized Fictitious Crack model

Dahlblom, Ola LU and Ottosen, Niels Saabye LU (1990) In Journal of Engineering Mechanics, ASCE 116(1). p.55-76
Abstract
he fictitious crack model is extended so that it includes the effect of crack shearing. By the introduction of the so-called equivalent length, it is possible to establish a smeared version of the fictitious crack model. The equivalent length is a purely geometrical quantity that depends entirely on the size and form of the element and on the crack direction. A realistic modeling of crack shearing is obtained, and the smeared constitutive relations are objective with respect to both loading normal to the crack plane and loading tangential to the crack plane. The existence of multiple cracks is considered, and a consistent theory for unloading and possible closure of the cracks is presented. FE calculations of a concrete specimen using four... (More)
he fictitious crack model is extended so that it includes the effect of crack shearing. By the introduction of the so-called equivalent length, it is possible to establish a smeared version of the fictitious crack model. The equivalent length is a purely geometrical quantity that depends entirely on the size and form of the element and on the crack direction. A realistic modeling of crack shearing is obtained, and the smeared constitutive relations are objective with respect to both loading normal to the crack plane and loading tangential to the crack plane. The existence of multiple cracks is considered, and a consistent theory for unloading and possible closure of the cracks is presented. FE calculations of a concrete specimen using four different element types demonstrate the objectivity of the theory even when distorted meshes are used. (Less)
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author
organization
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type
Contribution to journal
publication status
published
subject
in
Journal of Engineering Mechanics, ASCE
volume
116
issue
1
pages
55 - 76
language
English
LU publication?
yes
id
a72531ea-f77c-4c23-bc1d-7b7264295b2b (old id 1370115)
alternative location
http://dx.doi.org/10.1061/(ASCE)0733-9399(1990)116:1(55)
date added to LUP
2010-08-24 16:46:16
date last changed
2016-04-16 10:54:44
@misc{a72531ea-f77c-4c23-bc1d-7b7264295b2b,
  abstract     = {he fictitious crack model is extended so that it includes the effect of crack shearing. By the introduction of the so-called equivalent length, it is possible to establish a smeared version of the fictitious crack model. The equivalent length is a purely geometrical quantity that depends entirely on the size and form of the element and on the crack direction. A realistic modeling of crack shearing is obtained, and the smeared constitutive relations are objective with respect to both loading normal to the crack plane and loading tangential to the crack plane. The existence of multiple cracks is considered, and a consistent theory for unloading and possible closure of the cracks is presented. FE calculations of a concrete specimen using four different element types demonstrate the objectivity of the theory even when distorted meshes are used.},
  author       = {Dahlblom, Ola and Ottosen, Niels Saabye},
  language     = {eng},
  number       = {1},
  pages        = {55--76},
  series       = {Journal of Engineering Mechanics, ASCE},
  title        = {Smeared Crack analysis Using a Generalized Fictitious Crack model},
  volume       = {116},
  year         = {1990},
}