Fracture energy of concrete: Method of determination
(1980) In Cement and Concrete Research 10(1). p.7889 Abstract
 When the maximum load at a threepoint bend test on a notched beam is known, Gc can be estimated from a wellknown method of linear elastic fracture mechanics. The method, in this case called the indirect method, has proved to be unsuitable for use in Gcdeterminations of concretelike materials. The method is too dependent on the specimen size.
Another method of directly determining Gc is also dealt with. A threepoint bend test on a notched beam gives a stable loaddeflection curve. The area under the curve represents the amount of energy consumed when the crack propagates through the beam. When the crosssectional 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 threepoint bend test on a notched beam is known, Gc can be estimated from a wellknown method of linear elastic fracture mechanics. The method, in this case called the indirect method, has proved to be unsuitable for use in Gcdeterminations of concretelike materials. The method is too dependent on the specimen size.
Another method of directly determining Gc is also dealt with. A threepoint bend test on a notched beam gives a stable loaddeflection curve. The area under the curve represents the amount of energy consumed when the crack propagates through the beam. When the crosssectional area is known, Gc can be calculated. Results and calculations in this paper imply that this method is suitable for use in Gcdeterminations. The method allows much smaller specimens to be used than the indirect method. (Less)
Please use this url to cite or link to this publication:
http://lup.lub.lu.se/record/4091639
 author
 Petersson, PerErik ^{LU}
 organization
 publishing date
 1980
 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
 00088846
 DOI
 10.1016/00088846(80)90054X
 language
 English
 LU publication?
 yes
 id
 992aa07035cd484081b8bb47b6433956 (old id 4091639)
 date added to LUP
 20131017 08:40:55
 date last changed
 20161013 04:28:18
@misc{992aa07035cd484081b8bb47b6433956, abstract = {When the maximum load at a threepoint bend test on a notched beam is known, Gc can be estimated from a wellknown method of linear elastic fracture mechanics. The method, in this case called the indirect method, has proved to be unsuitable for use in Gcdeterminations of concretelike 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 threepoint bend test on a notched beam gives a stable loaddeflection curve. The area under the curve represents the amount of energy consumed when the crack propagates through the beam. When the crosssectional area is known, Gc can be calculated. Results and calculations in this paper imply that this method is suitable for use in Gcdeterminations. The method allows much smaller specimens to be used than the indirect method.}, author = {Petersson, PerErik}, issn = {00088846}, language = {eng}, number = {1}, pages = {7889}, publisher = {ARRAY(0x8d60948)}, series = {Cement and Concrete Research}, title = {Fracture energy of concrete: Method of determination}, url = {http://dx.doi.org/10.1016/00088846(80)90054X}, volume = {10}, year = {1980}, }