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Creep and fracture in concrete: a fractional order rate approach
- Source :
-
Engineering Fracture Mechanics . Mar2003, Vol. 70 Issue 5, p611-623. 13p. - Publication Year :
- 2003
-
Abstract
- The paper analyses the interaction between strain-softening and time-dependent behaviour in the case of quasi-static fracture of concrete. A viscous element based on a fractional order rate law is coupled with a micromechanical model for the fracture process zone. This approach makes it possible to include a whole range of dissipative mechanisms in a single rheological element. Creep fracture in mode I conditions is analysed through the finite element method, the cohesive (or fictitious) crack model and a new space and time integration scheme. The comparison with creep tests executed on three-point bending conditions shows a good agreement. [Copyright &y& Elsevier]
- Subjects :
- *FRACTURE mechanics
*CONCRETE
*STRENGTH of materials
*NUMERICAL analysis
Subjects
Details
- Language :
- English
- ISSN :
- 00137944
- Volume :
- 70
- Issue :
- 5
- Database :
- Academic Search Index
- Journal :
- Engineering Fracture Mechanics
- Publication Type :
- Academic Journal
- Accession number :
- 17487832