Steel and Composite Structures

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Application of computer methods for the effects of nanoparticles on the frequency of the concrete beams experimentally and numerically

  • Chencheng Song (College of Civil Engineering, Architecture and Environment, Hubei University of Technology) ;
  • Junfeng Shi (College of Civil Engineering, Architecture and Environment, Hubei University of Technology) ;
  • Ibrahim Albaijan (Mechanical Engineering Department, College of Engineering at Al Kharj, Prince Sattam Bin Abdulaziz University) ;
  • H. Elhosiny Ali (Department of Physics, Faculty of Science, King Khalid University) ;
  • Amir Behshad (Faculty of Technology and Mining, Yasouj University)
  • Received : 2021.02.23
  • Accepted : 2023.07.04
  • Published : 2023.07.10
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Abstract

Due to high application of concrete structures in construction industry, however, the quality improvement is essential. One of the new ways for this purpose is adding the nanoparticles to the concrete. In this work, vibration analysis of concrete beams reinforced by graphene oxide (GO) nanoparticles based on mathematical model has been investigated. For the accuracy of the presented model, the experimental study is done for comparing the compressive strength. Since the nanoparticles can not be solved in water without any specific process, at the first, GO nanoparticles should be dispersed in water by using shaker, magnetic striker, ultrasonic devices and finally mechanical mixer. For modelling of the strucuture, sinusoidal shear deformation beam theory (SSDBT) is utilized. Mori-Tanak model model is utilized for obtaining the effective properties of the beam including agglomeration influences. Utilizing the energy method and Hamilton's principal, the motion equations are calculated. The frequency of the concrete beam is obtanied by analytical method. Three samples with 0.02% GO nanoparticles are built and its compressive strength is compared which shows a good accuracy with maximum 1.29% difference with mathematical model and other papers. The aim of this work from the theoretical study is investigating the effects of nanoparticles volume percentage and agglomeration, length and thickness of the beam on the frequency of the structure. The results show that the with enhancing the GO nanoparticles, the frequency is increased. For example, with enhancing the volume percent of GO nanoparticles from zero to 0.08%, the compressive strength is increased 48.91%. and 46.83%, respectively for two cases of with and without agglomeration.

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References

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