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Numerical analysis of debonding between CFRP strips and concrete in shear tests under static and blast loads

Azer Maazoun (UGent) , Stijn Matthys (UGent) , Bachir Belkassem, David Lecompte and John Vantomme
(2019) PROTECT 2019 : 7th International Colloquium on Performance, Protection & Strengthening of Structures Under Extreme Loading & Events, Proceedings.
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Abstract
The present paper deals with the finite element (FE) analysis of the bond slip between concrete and carbon fiber reinforced polymer (CFRP) strips in a single bond shear test under static loads and in a double bond shear test under blast loading. A plastic damage material model and an elastic material model are used to model the concrete prism and the unidirectional CFRP strip, respectively. The bond interface between concrete and CFRP strip is simulated using a cohesive bond model. For the static loads, the numerical model is validated with experimental tests available in the literature. The debonding failure mode, the delamination loads and the strain distribution along the CFRP strip are predicted. The numerical results show a good agreement with the experimental data using the cohesive bond model. For the blast loads, the validated cohesive bond model is used. A parametric study with respect to the width and the length of the CFRP is conducted. Moreover, the reflected pressure and impulse are varied to highlight the effect of the propagation of the blast wave in the debonding process under blast loads.

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MLA
Maazoun, Azer, et al. “Numerical Analysis of Debonding between CFRP Strips and Concrete in Shear Tests under Static and Blast Loads.” PROTECT 2019 : 7th International Colloquium on Performance, Protection & Strengthening of Structures Under Extreme Loading & Events, Proceedings, 2019.
APA
Maazoun, A., Matthys, S., Belkassem, B., Lecompte, D., & Vantomme, J. (2019). Numerical analysis of debonding between CFRP strips and concrete in shear tests under static and blast loads. PROTECT 2019 : 7th International Colloquium on Performance, Protection & Strengthening of Structures Under Extreme Loading & Events, Proceedings. Presented at the PROTECT 2019, the 7th International Colloquium on Performance, Protection and Strengthening of Structures Under Extreme Loading and Events, Whistler, Canada.
Chicago author-date
Maazoun, Azer, Stijn Matthys, Bachir Belkassem, David Lecompte, and John Vantomme. 2019. “Numerical Analysis of Debonding between CFRP Strips and Concrete in Shear Tests under Static and Blast Loads.” In PROTECT 2019 : 7th International Colloquium on Performance, Protection & Strengthening of Structures Under Extreme Loading & Events, Proceedings.
Chicago author-date (all authors)
Maazoun, Azer, Stijn Matthys, Bachir Belkassem, David Lecompte, and John Vantomme. 2019. “Numerical Analysis of Debonding between CFRP Strips and Concrete in Shear Tests under Static and Blast Loads.” In PROTECT 2019 : 7th International Colloquium on Performance, Protection & Strengthening of Structures Under Extreme Loading & Events, Proceedings.
Vancouver
1.
Maazoun A, Matthys S, Belkassem B, Lecompte D, Vantomme J. Numerical analysis of debonding between CFRP strips and concrete in shear tests under static and blast loads. In: PROTECT 2019 : 7th International Colloquium on Performance, Protection & Strengthening of Structures Under Extreme Loading & Events, Proceedings. 2019.
IEEE
[1]
A. Maazoun, S. Matthys, B. Belkassem, D. Lecompte, and J. Vantomme, “Numerical analysis of debonding between CFRP strips and concrete in shear tests under static and blast loads,” in PROTECT 2019 : 7th International Colloquium on Performance, Protection & Strengthening of Structures Under Extreme Loading & Events, Proceedings, Whistler, Canada, 2019.
@inproceedings{8635105,
  abstract     = {{The present paper deals with the finite element (FE) analysis of the bond slip between concrete and carbon fiber reinforced polymer (CFRP) strips in a single bond shear test under static loads and in a double bond shear test under blast loading. A plastic damage material model and an elastic material model are used to model the concrete prism and the unidirectional CFRP strip, respectively. The bond interface between concrete and CFRP strip is simulated using a cohesive bond model. For the static loads, the numerical model is validated with experimental tests available in the literature. The debonding failure mode, the delamination loads and the strain distribution along the CFRP strip are predicted. The numerical results show a good agreement with the experimental data using the cohesive bond model. For the blast loads, the validated cohesive bond model is used. A parametric study with respect to the width and the length of the CFRP is conducted. Moreover, the reflected pressure and impulse are varied to highlight the effect of the propagation of the blast wave in the debonding process under blast loads.}},
  author       = {{Maazoun, Azer and Matthys, Stijn and Belkassem, Bachir and Lecompte, David and Vantomme, John}},
  booktitle    = {{PROTECT 2019 : 7th International Colloquium on Performance, Protection & Strengthening of Structures Under Extreme Loading & Events, Proceedings}},
  language     = {{eng}},
  location     = {{Whistler, Canada}},
  title        = {{Numerical analysis of debonding between CFRP strips and concrete in shear tests under static and blast loads}},
  url          = {{https://www.protect2019.com/}},
  year         = {{2019}},
}