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- Title
A simplified extreme method for determining double-K fracture parameters of concrete using experimental peak load.
- Authors
Qing, L.B.; Nie, Y.T.; Wang, J; Hu, Y
- Abstract
A simplified approach to obtain the double- K fracture parameters of concrete for three-point bending beams was proposed based on the extreme method. With the proposed method, the double- K parameters can be easily obtained by the experimental peak load. This method requires fewer parameters or tests than the double- K method and the peak load method. It also avoids complicated numerical integral compared with the traditional extreme method. The double- K parameters obtained by the proposed method are slightly smaller than those by the double- K method, and they do not seem to be influenced by the initial crack length to depth ratio.
- Subjects
FRACTURE mechanics; CRACKING of concrete; PEAK load; CONCRETE defects; DEFORMATIONS (Mechanics)
- Publication
Fatigue & Fracture of Engineering Materials & Structures, 2017, Vol 40, Issue 2, p254
- ISSN
8756-758X
- Publication type
Article
- DOI
10.1111/ffe.12493