Modelling of strengthening of concrete beams with FRP in Ansys software

• Autorzy: Kowalski Damian , Selejdak Jacek

Identyfikatory

DOI

10.15199/33.2022.11.54

Warianty tytułu

PL

Modelowanie wzmacniania belek żelbetowych za pomocą FRP w programie Ansys

• Języki publikacji: EN

Abstrakty

EN

The purpose of this article is to confirm an accuracy of Cohesive Zone Model (CZM) implemented in Ansys for modelling concrete beams strengthened with fiber reinforced polymer (FRP) tapes. Only mode II of debonding was taken into account, which is sufficient for a case of bent beam strengthened with FRP tape glued to its bottom. Results show satisfying coincidence of used model with experimental data and therefore confirm usefulness of CZM for solving the above mentioned problems.

PL

Celem artykułu jest weryfikacja dokładności modelu Cohesive Zone Model (CZM), zaimplementowanego w programie Ansys, w modelowaniu numerycznym belek żelbetowych wzmacnianych taśmami z polimerów zbrojonych włóknami (FRP). Wzięto pod uwagę jedynie postać II utraty przyczepności, co jest wystarczające w przypadku belek zginanych wzmocnionych taśmą przyklejoną do ich spodu. Wyniki pokazują zadowalającą zgodność użytego modelu z danymi eksperymentalnymi i tym samym potwierdzają użyteczność CZM do rozwiązywania ww. zagadnień.

Słowa kluczowe

EN

concrete structure; FEM; finite elements method; reinforced concrete beam; beam strengthening; FRP strips; fibre reinforced polymer; Ansys; numerical model

PL

konstrukcja betonowa; MES; metoda elementów skończonych; belka żelbetowa; wzmocnienie belki; taśma FRP; polimer wzmocniony włóknami; Ansys; model numeryczny

• Wydawca: Wydawnictwo SIGMA-NOT
• Czasopismo: Materiały Budowlane
• Rocznik: 2022
• Tom: nr 11
• Strony: 188--191
• Opis fizyczny: Bibliogr. 15 poz., il., tab.

Twórcy

autor

Kowalski Damian

• Częstochowa University of Technology, Faculty of Civil Engineering

• https://orcid.org/0000-0002-0257-7642

autor

Selejdak Jacek

• Częstochowa University of Technology, Faculty of Civil Engineering

• https://orcid.org/0000-0001-9854-5962

Bibliografia

• [1] Wu H.-C., Eamon C.D. Strengthening of Concrete Structures Using Fiber Reinforced Polymers (FRP) Design, Construction and Practical Applications. Elsevier Ltd., 2017.
• [2] American Concrete Institute and ACI Committee 440, “Guide for the design and construction of externally bonded FRP systems for strengthening concrete structures”, American Concrete Institute, 2017.
• [3] Rasheed. H.A. Strengthening Design of Reinforced Concrete with FRP. 2017.
• [4] Yu H., Bai Y.L., Dai J.G., Gao W.Y. Finite element modeling for debonding of FRP-to-concrete interfaces subjected to mixed-mode loading. Polymers (Basel), vol. 9, no. 9, Sep. 2017, doi: 10.3390/polym9090438.
• [5] Gliszczynski A., Wiącek N. Experimental and numerical benchmark study of mode II interlaminar fracture toughness of unidirectional GFRP laminates under shear loading using the end-notched flexure (ENF) test. Composite Structures, vol. 258, Feb. 2021, doi: 10.1016/j.compstruct.2020.113190.
• [6] Al-Saawani, M.A., Al-Negheimish A..I, El- Sayed A.K., Alhozaimy A.M. Finite Element Modeling of Debonding Failures in FRP-Strengthened Concrete Beams Using Cohesive Zone Model. Polymers (Basel), vol. 14, no. 9, p. 1889, May 2022, doi: 10.3390/polym14091889.
• [7] Matthys S. Structural behaviour and design of concrete members strengthened with externally bonded FRP reinforcement. 1999.
• [8] Zreid I., Kaliske M. A gradient enhanced plasticity-damage microplane model for concrete. Computational Mechanics. 2018, doi: 10.1007/s00466-018-1561-1.
• [9] Zreid I., Kaliske M. A cyclic triaxial concrete microplane model with gradient regularization, in Computational modelling of concrete structures: proceedings of the Conference on Computational Modelling of Concrete and Concrete Structures (EURO-C 2018), 26 February 26 - 1 March, 2018, Bad Hofgastein, Austria, 2018, pp. 413-420.
• [10] Alfano G., Crisfield M.A. Finite element interface models for the delamination analysis of laminated composites: mechanical and computational issues. International Journal For Numerical Methods In Engineering Int. J. Numer. Meth. Engng. 2001, vol. 50, pp. 1701-1736.
• [11] Lu X.Z., Teng J.G., Ye L.P., Jiang J.J. Bond-slip models for FRP sheets/plates bonded to concrete. Engineering Structures. 2005, vol. 27, no. 6, pp. 920-937, doi: 10.1016/j.engstruct.2005.01.014.
• [12] Mostoonejad D., Hosseini S.J. Simulating FRP debonding from concrete surface in FRP strengthened RC beams: A case study. 2017. [Online]. Available: www.scientiairanica.com
• [13] Li G., Zhang A., Jin W. Effect of shear resistance on flexural debonding load-carrying capacity of RC beams strengthened with externally bonded FRP composites. Polymers (Basel). 2014, vol. 6, no. 5, pp. 1366-1380, doi: 10.3390/polym6051366.
• [14] Neto P., Alfaiate J., Vinagre J. Modelling the behaviour of reinforced concrete beams strengthened with FRP, in III European Conference on Computational Mechanics Solids, Structures and Coupled Problems in Engineering, Jun. 2006.
• [15] Mohammadi S., Mousavi Khandan A.A. Numerical modeling of RC beams strengthened with CFRP under dynamic loading.