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Fracture energy of concrete: Method of determination

Petersson, Per-Erik LU (1980) In Cement and Concrete Research 10(1). p.78-89
Abstract
When the maximum load at a three-point bend test on a notched beam is known, Gc can be estimated from a well-known method of linear elastic fracture mechanics. The method, in this case called the indirect method, has proved to be unsuitable for use in Gc-determinations of concrete-like materials. The method is too dependent on the specimen size.



Another method of directly determining Gc is also dealt with. A three-point bend test on a notched beam gives a stable load-deflection curve. The area under the curve represents the amount of energy consumed when the crack propagates through the beam. When the cross-sectional area is known, Gc can be calculated. Results and calculations in this paper imply that this method is... (More)
When the maximum load at a three-point bend test on a notched beam is known, Gc can be estimated from a well-known method of linear elastic fracture mechanics. The method, in this case called the indirect method, has proved to be unsuitable for use in Gc-determinations of concrete-like materials. The method is too dependent on the specimen size.



Another method of directly determining Gc is also dealt with. A three-point bend test on a notched beam gives a stable load-deflection curve. The area under the curve represents the amount of energy consumed when the crack propagates through the beam. When the cross-sectional area is known, Gc can be calculated. Results and calculations in this paper imply that this method is suitable for use in Gc-determinations. The method allows much smaller specimens to be used than the indirect method. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Cement and Concrete Research
volume
10
issue
1
pages
78 - 89
publisher
Elsevier
external identifiers
  • Scopus:0018942860
ISSN
0008-8846
DOI
10.1016/0008-8846(80)90054-X
language
English
LU publication?
yes
id
992aa070-35cd-4840-81b8-bb47b6433956 (old id 4091639)
date added to LUP
2013-10-17 08:40:55
date last changed
2016-10-13 04:28:18
@misc{992aa070-35cd-4840-81b8-bb47b6433956,
  abstract     = {When the maximum load at a three-point bend test on a notched beam is known, Gc can be estimated from a well-known method of linear elastic fracture mechanics. The method, in this case called the indirect method, has proved to be unsuitable for use in Gc-determinations of concrete-like materials. The method is too dependent on the specimen size.<br/><br>
<br/><br>
Another method of directly determining Gc is also dealt with. A three-point bend test on a notched beam gives a stable load-deflection curve. The area under the curve represents the amount of energy consumed when the crack propagates through the beam. When the cross-sectional area is known, Gc can be calculated. Results and calculations in this paper imply that this method is suitable for use in Gc-determinations. The method allows much smaller specimens to be used than the indirect method.},
  author       = {Petersson, Per-Erik},
  issn         = {0008-8846},
  language     = {eng},
  number       = {1},
  pages        = {78--89},
  publisher    = {ARRAY(0x8d60948)},
  series       = {Cement and Concrete Research},
  title        = {Fracture energy of concrete: Method of determination},
  url          = {http://dx.doi.org/10.1016/0008-8846(80)90054-X},
  volume       = {10},
  year         = {1980},
}