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On the localisation of the FPZ under a pure mode II load identified by a hybrid method

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Abstract
In this paper, the fracture process zone (FPZ) of a high-performance concrete (HPC) is studied. The analysis is done under a pure mode II load, making use of a digital image correlation (DIC) technique. The experimental test was performed on Brazilian disc with central notch (BDCN) specimens with a relative notch ratio a/R of 0.267. The main focus of this experimental study was the traction-free crack ahead of the notch tip, together with the FPZ extent ahead of the crack. This is done by adjusting the current method for mode I crack localisation to pure mode II cracks. Additionally, a traditional analytical formulation to predict FPZ length was substituted with the fracture toughness for mode II to cover mode II load cases. To verify the adjustments to the mode I crack identification, crack tip opening (CTOD) and crack tip sliding (CTSD) displacements were measured by DIC, which showed a mode II dominance in the crack tip displacement components.
Keywords
Concrete, FPZ, Mode II, DIC, FRACTURE PROCESS ZONE, CRACK CLOSURE, TENSILE BEHAVIOR, SHEAR DESIGN, CONCRETE, ENERGY, SIZE, CRITERION, FAILURE, PRECAST

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MLA
Miarka, Petr, et al. “On the Localisation of the FPZ under a Pure Mode II Load Identified by a Hybrid Method.” ENGINEERING FRACTURE MECHANICS, vol. 279, PERGAMON-ELSEVIER SCIENCE LTD, 2023, doi:10.1016/j.engfracmech.2022.109019.
APA
Miarka, P., Cruces, A. S., Lopez-Crespo, P., & De Corte, W. (2023). On the localisation of the FPZ under a pure mode II load identified by a hybrid method. ENGINEERING FRACTURE MECHANICS, 279. https://doi.org/10.1016/j.engfracmech.2022.109019
Chicago author-date
Miarka, Petr, Alejandro S. Cruces, Pablo Lopez-Crespo, and Wouter De Corte. 2023. “On the Localisation of the FPZ under a Pure Mode II Load Identified by a Hybrid Method.” ENGINEERING FRACTURE MECHANICS 279. https://doi.org/10.1016/j.engfracmech.2022.109019.
Chicago author-date (all authors)
Miarka, Petr, Alejandro S. Cruces, Pablo Lopez-Crespo, and Wouter De Corte. 2023. “On the Localisation of the FPZ under a Pure Mode II Load Identified by a Hybrid Method.” ENGINEERING FRACTURE MECHANICS 279. doi:10.1016/j.engfracmech.2022.109019.
Vancouver
1.
Miarka P, Cruces AS, Lopez-Crespo P, De Corte W. On the localisation of the FPZ under a pure mode II load identified by a hybrid method. ENGINEERING FRACTURE MECHANICS. 2023;279.
IEEE
[1]
P. Miarka, A. S. Cruces, P. Lopez-Crespo, and W. De Corte, “On the localisation of the FPZ under a pure mode II load identified by a hybrid method,” ENGINEERING FRACTURE MECHANICS, vol. 279, 2023.
@article{01HPE73D7Y9DPGCJMY50MCA5QP,
  abstract     = {{In this paper, the fracture process zone (FPZ) of a high-performance concrete (HPC) is studied. The analysis is done under a pure mode II load, making use of a digital image correlation (DIC) technique. The experimental test was performed on Brazilian disc with central notch (BDCN) specimens with a relative notch ratio a/R of 0.267. The main focus of this experimental study was the traction-free crack ahead of the notch tip, together with the FPZ extent ahead of the crack. This is done by adjusting the current method for mode I crack localisation to pure mode II cracks. Additionally, a traditional analytical formulation to predict FPZ length was substituted with the fracture toughness for mode II to cover mode II load cases. To verify the adjustments to the mode I crack identification, crack tip opening (CTOD) and crack tip sliding (CTSD) displacements were measured by DIC, which showed a mode II dominance in the crack tip displacement components.}},
  articleno    = {{109019}},
  author       = {{Miarka, Petr and  Cruces, Alejandro S. and  Lopez-Crespo, Pablo and De Corte, Wouter}},
  issn         = {{0013-7944}},
  journal      = {{ENGINEERING FRACTURE MECHANICS}},
  keywords     = {{Concrete,FPZ,Mode II,DIC,FRACTURE PROCESS ZONE,CRACK CLOSURE,TENSILE BEHAVIOR,SHEAR DESIGN,CONCRETE,ENERGY,SIZE,CRITERION,FAILURE,PRECAST}},
  language     = {{eng}},
  pages        = {{16}},
  publisher    = {{PERGAMON-ELSEVIER SCIENCE LTD}},
  title        = {{On the localisation of the FPZ under a pure mode II load identified by a hybrid method}},
  url          = {{http://doi.org/10.1016/j.engfracmech.2022.109019}},
  volume       = {{279}},
  year         = {{2023}},
}

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