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Experimental Structural Analysis of Hybrid Composite-Concrete Beams by Digital Image Correlation (DIC) and Acoustic Emission (AE)

  • S. Verbruggen
  • S. De Sutter
  • S. Iliopoulos
  • D. G. Aggelis
  • T. Tysmans
Article

Abstract

The use of composites such as textile reinforced cements (TRCs) and fibre reinforced polymers (FRPs) enables the development of lightweight structures. Such a lightweight solution for floor renovation consists of a hybrid composite-concrete cross section: prefabricated beams (TRC–CFRP reinforced hollow boxes with concrete on top) support sandwich panels together with a finishing concrete compression layer creating a monolithic hybrid floor. As the hybrid beams are the main structural element of this floor system, their load-bearing and failure behaviour should be fully understood. In order to examine the optimal design of these structures in terms of load bearing capacity, the beams are separately tested in four point bending while the amount of CFRP reinforcement and the concrete thickness are varied. The digital image correlation (DIC) and acoustic emission (AE) measuring techniques are applied in a complimentary way to monitor the bending and failure behaviour of the full scale hybrid beams. DIC visualises the development of surface strain fields together with the exact cracking patterns in relation to the applied load. AE contributes in defining the load at the onset of serious cracking activity. Furthermore, AE characterizes the contribution of the different fracture modes that may vary from concrete cracking, delamination between the successive layers of the TRC or debonding at the interphase between the TRC hollow box and the concrete on the one hand and the CFRP on the other hand.

Keywords

Digital image correlation (DIC) Acoustic emission (AE) Hybrid composite-concrete beams Textile reinforced cements (TRC) Bending 

Notes

Acknowledgments

Research partially funded by the Brussels Capital Region through the Innoviris Strategic Platform Brussels Retrofit XL for the first two authors and Fonds Wetenschappelijk Onderzoek-Vlaanderen (FWO) for funding the research of the third author through a PhD scholarship. The authors gratefully acknowledge the cooperation with the company TRADECC, through the delivery of the epoxy glue and CFRP.

References

  1. 1.
    Correia, J.R., Branco, F.A., Ferreira, J.G.: Flexural behavior of GFRP-concrete hybrid beams with interconnection slip. Compos. Struct. 77, 66–78 (2007)CrossRefGoogle Scholar
  2. 2.
    Correia, J.R., Branco, F.A., Ferreira, J.G.: GFRP-concrete hybrid cross-sections for floors of buildings. Eng. Struct. 31, 1331–1343 (2009)CrossRefGoogle Scholar
  3. 3.
    El-Hacha, R., Chen, D.: Behaviour of hybrid FRP-UHPC beams subjected to static flexural loading. Composites Part B 43, 582–593 (2012)CrossRefGoogle Scholar
  4. 4.
    De Sutter, S., Remy, O., Tysmans, T., Wastiels, J.: Development and experimental validation of a lightweight stay-in-place composite formwork for concrete beams. Constr. Build. Mater. 63, 33–39 (2014). doi: 10.1016/j.conbuildmat.2014.03.032 CrossRefGoogle Scholar
  5. 5.
    Brameshuber, W.: State-of-the-Art Report of RILEM Technical Committee TC 201-TRC: Textile Reinforced Concrete. RILEM Publications, Bagneux (2006)Google Scholar
  6. 6.
    Wu, X., Gu, J.: Inorganic resin compositions, their preparation and use thereof. European Patent EP 0 861 216 B1, 1997Google Scholar
  7. 7.
    De Sutter, S., Tysmans, T., Wozniak, M.: Analytical modelling and experimental testing of hybrid composite-concrete beams in a lightweight floor system. In: El-Hatcha, R. (ed.) Proceeding of the 7th International Conference on FRP Composites in Civil Engineering (CICE2014), Vancouver, Canada, August 2014, ISBN 978-1-77136-308-2Google Scholar
  8. 8.
    De Sutter, S., Tysmans, T., Verbruggen, S., Wozniak, M.: Shape and size optimization of hybrid concrete-composite beams in a lightweight floor system. In: Schlangen, E., Sierra Beltran, M.G., Lukovic, M., Ye, G. (eds.) Proceeding of the 3rd International RILEM Conference on Strain Hardening Cementitious Composites (SHCC3), Dordrecht, 3–5 November 2014, ISBN 978-2-35158-150-6, pp 349-356Google Scholar
  9. 9.
    Verbruggen, S., De Sutter, S., Iliopoulos, S., Aggelis, D., Tysmans, T.: Use of digital image correlation (DIC) and acoustic emission (AE) to characterise the structural behaviour of hybrid composite-concrete beams. In: Proceedings of International Conference on Emerging Technologies in Nondestructive Testing (ETNDT6), Brussels, May 2015Google Scholar
  10. 10.
    TRADECC (2007) PC CARBOCOMP. http://www.frp.co.il/uploadimages/12.pdf. July 2007
  11. 11.
    CEN (Comité Européen de Normalisation) (2000) Concrete—Part 1: Specification, performance, production and con-formit. EN 206-1Google Scholar
  12. 12.
    Cuypers, H.: Analysis and design of sandwich panels with brittle matrix composite faces for building applications. Doctoral thesis. Vrije Universiteit Brussel, Faculty of Engineering, Brussels, Belgium (2002)Google Scholar
  13. 13.
    CEN (Comité Européen de Normalisation) (2004) Eurocode 2: Design of concrete structures—Part 1-1: General rules and rules for buildings. ENV 1992-1-1Google Scholar
  14. 14.
    Sutton, M.A., Orteu, J.J., Schreier, H.W.: Image Correlation for Shape, Motion and Deformation Measurements. Basic Concepts, Theory and Applications. Springer, New York (2009); ISBN 978-0-387-78746-6Google Scholar
  15. 15.
    Ferrier, E., Avril, S., Hamelin, P., Vautrin, A.: Mechanical behaviour of beams reinforced by externally bonded CFRP sheets. Mater. struct. 36, 522–529 (2003)CrossRefGoogle Scholar
  16. 16.
    Avril, S., Ferrier, E., Vautrin, A., Hamelin, P., Surrel, Y.: A full-field optical method for the experimental analysis of reinforced concrete beams repaired with composites. Composites Part A 35, 873–884 (2004)CrossRefGoogle Scholar
  17. 17.
    Contamine, R., Si Larbi, A., Hamelin, P.: Identifying the contributing mechanisms of textile reinforced concrete (TRC) in the case of shear repairing damaged and reinforced concrete beams. Eng. Struct. 46, 447–458 (2013)CrossRefGoogle Scholar
  18. 18.
    Verbruggen, S., Tysmans, T., Wastiels, J.: TRC or CFRP strengthening for reinforced concrete beams: an experimental study of the cracking behaviour. Eng. Struct. 77, 49–56 (2014)CrossRefGoogle Scholar
  19. 19.
    Verbruggen, S.: Reinforcement of concrete beams in bending with externally bonded textile reinforced cementitious composites. PhD thesis, Vrije Universiteit Brussel (2014)Google Scholar
  20. 20.
    CEB-FIP. fib bulletin 35; Retrofitting of concrete structures by externally bonded FRPs with emphasis on seismic applications. Lausanne, Switzerland; ISBN 2-88394-075-4 (2006)Google Scholar
  21. 21.
    Prosser, W.H.: Acoustic emission In: Shull, P.J. (ed.) Nondestructive Evaluation, Theory, Techniques and Applications. Taylor & Francis, New York (2002)Google Scholar
  22. 22.
    Ohtsu, M.: Recommendations of RILEM Technical Committee 212-ACD: acoustic emission and related NDE techniques for crack detection and damage evaluation in concrete: 3. Test method for classification of active cracks in concrete structures by acoustic emission. Mater. Struct. 43(9), 1187–1189 (2010)CrossRefGoogle Scholar
  23. 23.
    Alver, N., Murat Tanarslan, H., Yasin Sülün, Ö., Ercan, E., Karc\(\imath \), M., Selman, E., Ohno, K.: Effect of CFRP-spacing on fracture mechanism of CFRP-strengthened reinforced concrete beam identified by AE-SiGMA. Constr. Build. Mater. 67, 146–156 (2014)Google Scholar
  24. 24.
    Shiotani, T., Oshima, Y., Goto, M., Momoki, S.: Temporal and spatial evaluation of grout failure process with PC cable breakage by means of acoustic emission. Constr. Build. Mater. 48, 1286–1292 (2013)CrossRefGoogle Scholar
  25. 25.
    Schechinger, B., Vogel, T.: Acoustic emission for monitoring a reinforced concrete beam subject to four-point-bending. Constr. Build. Mater. 21, 483–490 (2007)CrossRefGoogle Scholar
  26. 26.
    Luo, X., Haya, H., Inaba, T., Shiotani, T., Nakanishi, Y.: Damage evaluation of railway structures by using train-induced AE. Constr. Build. Mater. 18, 215–223 (2004)CrossRefGoogle Scholar
  27. 27.
    Anastasopoulos, A., Kouroussis, D., Bollas, K., Papasalouros, D.: Acoustic emission testing of high-temperature process vessels during cool down. In: Presented in 6\(^{th}\) International Conference in Non-Destructive Testing, Brussels, vol. 27–29 (2015)Google Scholar
  28. 28.
    Mpalaskas, A.C., Vasilakos, I., Matikas, T.E., Chai, H.K., Aggelis, D.G.: Monitoring of the fracture mechanisms induced by pull-out and compression in concrete. Eng. Fract. Mech. 128, 219–230 (2014)CrossRefGoogle Scholar
  29. 29.
    Farhidzadeh, A., Salamone, S., Singla, P.: A probabilistic approach for damage identification and crack mode classification in reinforced concrete structures. J. Intell. Mater. Syst. Struct. 24(14), 1722–1735 (2013)CrossRefGoogle Scholar
  30. 30.
    Aggelis, D.G.: Classification of cracking mode in concrete by acoustic emission parameters. Mech. Res. Comm. 38, 153–157 (2011)CrossRefGoogle Scholar

Copyright information

© Springer Science+Business Media New York 2015

Authors and Affiliations

  1. 1.Department of Mechanics of Materials and ConstructionsVrije Universiteit BrusselBrusselsBelgium

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