Fracture and Structural Integrity e-ISSN 1971-8993 Open access
Miscellanea Vol. 13, No. 49 (2019)

A Determination of fracture toughness in plain concrete specimens by R curve

Author and affiliation details
  • Hamza Chbani Corresponding author Laboratory of Control and Mechanical Characterization of Materials and Structures, National Higher School of Electricity and Mechanics, BP 8118 Oasis, Hassan II chbanihamza1@gmail.com
  • Bouchra Saadouki Laboratory of Control and Mechanical Characterization of Materials and Structures, National Higher School of Electricity and Mechanics, BP 8118 Oasis, Hassan II
  • Mostapha Boudlal Laboratory of Control and Mechanical Characterization of Materials and Structures, National Higher School of Electricity and Mechanics, BP 8118 Oasis, Hassan II, Morocco
  • Mohamed Barakat Laboratory of Mechanics Higher Institute of Maritimes ‘Studies (ISEM), Km 7 Road El Jadida - Casablanca, Morocco
DOI
10.3221/IGF-ESIS.49.68
Pages
763-774
Published
Published inVol. 13, No. 49 (2019)Go to the issue

Abstract

Since the last two centuries, concrete has become the number one building material in the world. Therefore, we are interested in studying the mechanical behavior at failure of this material and calculate its toughness.

In this paper, we trace the R-curve to determine the critical stress intensity factor and the crack evolution by specifying the three stages:  crack stopping stage, stable propagation stage and an unstable propagation stage. The R-curve was obtained from the curve connecting the crack mouth opening to the applied load for prismatic specimens normalized by ASTM and notched laterally (SENB). These specimens are made from concrete with 25 MPa compressive strength and subjected to three-point bending. The dimensionless ratio of the initial notch length and the specimen width is between 0.3 and 0.6.

During loading, we can observe an elastic deformation followed by a significant plastic deformation, the average value of the critical stress intensity factor found is 1.05 MPa.m1/2.

 

Keywords

Article history

  1. ReceivedUntil the next stage: 28 days
  2. Revision requestedUntil the next stage: 9 days
  3. RevisedUntil the next stage: 0 days
  4. AcceptedUntil the next stage: 5 days
  5. Published

How to cite

APA

Chbani, H., Saadouki, B., Boudlal, M., & Barakat, M. (2019). A Determination of fracture toughness in plain concrete specimens by R curve. Fracture and Structural Integrity, 13(49), 763–774. https://doi.org/10.3221/IGF-ESIS.49.68

IEEE

H. Chbani, B. Saadouki, M. Boudlal, and M. Barakat, “A Determination of fracture toughness in plain concrete specimens by R curve,” Fracture and Structural Integrity, vol. 13, no. 49, pp. 763–774, 2019, doi: 10.3221/IGF-ESIS.49.68.

MLA

Chbani, Hamza, et al. “A Determination of fracture toughness in plain concrete specimens by R curve.” Fracture and Structural Integrity, vol. 13, no. 49, 2019, pp. 763–774. https://doi.org/10.3221/IGF-ESIS.49.68.

Chicago

Chbani, Hamza, Bouchra Saadouki, Mostapha Boudlal, and Mohamed Barakat. 2019. “A Determination of fracture toughness in plain concrete specimens by R curve.” Fracture and Structural Integrity 13 (49): 763–774. https://doi.org/10.3221/IGF-ESIS.49.68.

Harvard

Chbani, H., Saadouki, B., Boudlal, M. and Barakat, M. (2019) ‘A Determination of fracture toughness in plain concrete specimens by R curve’, Fracture and Structural Integrity, 13(49), pp. 763–774. doi: 10.3221/IGF-ESIS.49.68.

Vancouver

Chbani H, Saadouki B, Boudlal M, Barakat M. A Determination of fracture toughness in plain concrete specimens by R curve. Fracture and Structural Integrity. 2019;13(49):763-774. doi:10.3221/IGF-ESIS.49.68

BibTeX

@article{chbani2019, author = {Chbani, Hamza and Saadouki, Bouchra and Boudlal, Mostapha and Barakat, Mohamed}, title = {A Determination of fracture toughness in plain concrete specimens by R curve}, journal = {Fracture and Structural Integrity}, year = {2019}, volume = {13}, number = {49}, pages = {763--774}, doi = {10.3221/IGF-ESIS.49.68}, url = {https://doi.org/10.3221/IGF-ESIS.49.68}, issn = {1971-8993} }

RIS

TY - JOUR AU - Chbani, Hamza AU - Saadouki, Bouchra AU - Boudlal, Mostapha AU - Barakat, Mohamed TI - A Determination of fracture toughness in plain concrete specimens by R curve JO - Fracture and Structural Integrity T2 - Fracture and Structural Integrity PY - 2019 DA - 2019/06/24 VL - 13 IS - 49 SP - 763 EP - 774 DO - 10.3221/IGF-ESIS.49.68 UR - https://doi.org/10.3221/IGF-ESIS.49.68 SN - 1971-8993 ER -

Licence

Copyright © 2019 Hamza Chbani, Bouchra Saadouki, Mostapha Boudlal, Mohamed Barakat.

Copyright 
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