Fracture Energy Analysis of Concrete considering the Boundary Effect of Single-Edge Notched Beams
Joint Authors
Xu, Ping
Ma, Jinyi
Zhang, Minxia
Ding, Yahong
Meng, Lingqi
Source
Issue
Vol. 2018, Issue 2018 (31 Dec. 2018), pp.1-10, 10 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2018-11-21
Country of Publication
Egypt
No. of Pages
10
Main Subjects
Abstract EN
The method of determining concrete fracture energy recommended by RILEM has an obvious size effect, so determining fracture energy that is unaffected by size of the test specimen is difficult.
In this study, 60 high-strength concrete single-edge notched beams (SENBs) of different sizes, crack length-to-depth ratios, and span-to-depth ratios were subjected to the three-point loading test as recommended by RILEM.
Then, the influences of the boundary effect on the fracture energy were identified.
Based on the SENB boundary effect model, a piecewise function of the interrelationships between the experimental test fracture energy Gf, the local fracture energy gf, and the fracture energy unaffected by specimen size GF was established.
The applicability of the boundary effect model was verified using the test results from this study and from the previously published research.
The results show that the local fracture energy distribution in the boundary influence region was nonuniform.
The smaller the local fracture energy was, the closer it was to the rear boundary of the specimen.
The influence length al∗ of the boundary increased with the increasing specimen size.
Based on the bilinear distribution model of the local fracture energy gf, the fracture energy unaffected by beam size GF can be obtained according to the fracture energy Gf measured for laboratory-scale small-sized SENB specimens.
Furthermore, the model predictions are in good agreement with experimental observations.
American Psychological Association (APA)
Xu, Ping& Ma, Jinyi& Zhang, Minxia& Ding, Yahong& Meng, Lingqi. 2018. Fracture Energy Analysis of Concrete considering the Boundary Effect of Single-Edge Notched Beams. Advances in Civil Engineering،Vol. 2018, no. 2018, pp.1-10.
https://search.emarefa.net/detail/BIM-1115780
Modern Language Association (MLA)
Xu, Ping…[et al.]. Fracture Energy Analysis of Concrete considering the Boundary Effect of Single-Edge Notched Beams. Advances in Civil Engineering No. 2018 (2018), pp.1-10.
https://search.emarefa.net/detail/BIM-1115780
American Medical Association (AMA)
Xu, Ping& Ma, Jinyi& Zhang, Minxia& Ding, Yahong& Meng, Lingqi. Fracture Energy Analysis of Concrete considering the Boundary Effect of Single-Edge Notched Beams. Advances in Civil Engineering. 2018. Vol. 2018, no. 2018, pp.1-10.
https://search.emarefa.net/detail/BIM-1115780
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1115780