PSI - Issue 36

O. Kononchuк et al. / Procedia Structural Integrity 36 (2022) 177–181 O. Kononchu к , V. Iasnii, N. Lutsyk / Structural Integrity Procedia 00 (2021) 000 – 000

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Fig. 5. Crack propagation in RC beam strengthened by carbon plastic tape Sika CarboDur S-512 under pre-failure loading: a) experiment and b) FEM modelling. Crack initiation, propagation and their distribution in the cross section of the structure simulated by the FEM is very similar to the results obtained experimentally by Selivanov et al. (2018). 4. Conclusions A good agreement between experimental data and theoretical ones indicates the feasibility of using numerical simulation for prediction the behaviour of structures while changing strength characteristics of concrete, rebar, force, structural factors, etc. The numerical method allows predicting not only the stress and strain state of the RC structure under external loading, but also cracks propagation before pre-failure stage. FEM modelling could be effectively used both in the design of RC structures and for the analysing the behaviour of long-term operation structures in order to assess their strength, reliability, residual life, as well as the strengthening and continuing their use. References Arduini, M., Tommaso, A., Nannim, A., 1997. Brittle failure in FRP plate and sheet bonded beams. ACI Structural Journal 94(4), 363 – 370. Brena, S., Bramblett, R., Wood, S., Kreger, M., 2003. Increasing flexural capacity of reinforced concrete beams using carbon fiber-reinforced polymer composites. ACI Structural Journal 100(6), 827 – 830. Bykiv, N., Yasniy, P., Iasnii, V., 2020. Modeling of mechanical behavior of reinforced concrete beam reinforced by the shape memory alloy insertion using finite elements method. Modern technologies and methods of calculations in construction 13, 24 – 34. Kachlakev, D., Miller, T., Yim, S., Chansawat, K., Potisuk, T., 2001. Finite Element Modelling of Reinforced Concrete Structures Strengthening with FRP Laminates. Special Report SP316, 113. Kaminska, M., Kotynia, R., 1998. Badania zelbetowych belek z tasmami CFRP przyklejonymi na ich powierzс hniach. XVI konferencja naukowo-techniczna "Beton i prefabrykacja" 2, 479 – 484. Kononchuk, O., Skyba, O., 2017. Computer software system as a tool for simulating the building constructions operation. Monografia. Projekt interdyscyplinarny projektem XXI wieku 1, 155 – 162. Kotynia, R., 2005. Graniczne odksztalcenia materialow kompozytowych przy odspojeniu w ujęciu normowym dla zginania. K onf. nauk. KILiW PAN i KN PZITB Problemy naukowo-badawcze budownictwa 3, 105 – 112. Murali, G., Pannirselvam, N., 2011. Flexural strengthening of reinforced concrete beams using fibre reinforced polymer laminate: a review. ARPN Journal of Engineering and Applied Sciences 6 (11), 41 – 47. Ritchie, P., Thomas, D., Lu, L., Connelly, G., 1991. External reinforcement of concrete beams using fiber reinforced plastics. ACI Structural Journal 88(4), 490 – 498. Selivanov, M., Chornoivan, Y., Kononchuk, O., 2018. Determination of crack opening displacement and critical load parameter within a cohesive zone model. Continuum Mechanics and Thermodynamics 31, 569 – 586.