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Influence of size on fracture energy of concrete



Title: Influence of size on fracture energy of concrete
Author(s): B. Trunk, F. H. Wittmann
Paper category : journal
Serial title: Materials and Structures
Abreviated Serial title: Mater. Struct.
ISSN: 1359-5997
Publisher: RILEM Publications SARL
Volume: 34
Issue: 239
Issue date: 2001-06-01
Publication year: 2001
Pages: 260 - 265
Total Pages: 6
Nb references: 21
Language: English


Abstract: Concrete structures frequently exhibit cracks.
In order to investigate the influence of cracks on durability and the remaining load bearing capacity of buildings, fracture mechanics models can be used.
For materials like concrete non-linear models for xample the fictitious crack model introduced by Hillerborg,Modéer and Petersson [1 ]or the crack band model proposed by Bazant and Oh [2 ]are able to describe crack formation and propagation in a realistic way.
But it has been observed,that the parameters of these models depend both,on structural size and geometry.
In this paper a simple model to explain the nature of size and geometry dependence of the specific fracture energy is presented.
The model is valuated with experimental data from Trunk and Wittmann [2,4,5 ].


Online publication: 2001-04-27
Classification: Scientific Reports
Publication type : full_text
Public price (Euros): 0.00
doi: 10.1617/13739


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