Computers and Concrete

  • 제34권3호
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  • Pages.297-305
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  • 2024
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  • 1598-8198(pISSN)
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  • 1598-818X(eISSN)
테크노프레스 (Techno-Press)
권호 표지
DOI QR코드

DOI QR Code

Buckling behavior of nonlinear FG-CNT reinforced nanocomposite beam reposed on Winkler/Pasternak foundation

  • Rachid Zerrouki (Laboratory of Geomatics and Sustainable Development, University of Tiaret) ;
  • Mohamed Zidour (Laboratory of Geomatics and Sustainable Development, University of Tiaret) ;
  • Abdelouahed Tounsi (Department of Civil and Environmental Engineering, King Fahd University of Petroleum & Minerals) ;
  • Abdeldjebbar Tounsi (Material and Hydrology Laboratory, University of Sidi Bel Abbes, Faculty of Technology, Civil Engineering Department) ;
  • Zakaria Belabed (Artificial Intelligence Laboratory for Mechanical and Civil Structures, and Soil, Institute of Technology, Naama University Center) ;
  • Abdelmoumen Anis Bousahla (Laboratoire de Modelisation et Simulation Multi-echelle, Universite de Sidi Bel Abbes) ;
  • Mohamed Abdelaziz Salem (Department of Mechanical Engineering, College of Engineering, King Khalid University) ;
  • Khaled Mohamed Khedher (Department of Civil Engineering, College of Engineering, King Khalid University)
  • 투고 : 2023.12.14
  • 심사 : 2024.02.05
  • 발행 : 2024.09.25
⟨ 이전 논문 다음 논문 ⟩

초록

This study investigates the buckling behavior of CNTRC beams on a Winkler-Pasternak elastic foundation, considering their stiffness. To achieve the highest accuracy, the shear stiffness is taken into account based on the Higher-order Shear Deformation Theory (HSDT). A novel exponential power-law distribution of the CNT volume fraction across the beam thickness is employed to model CNTRC beams. Various reinforcement patterns are incorporated into the polymer matrix, featuring single-walled carbon nanotubes (SWCNT) that are both aligned and distributed. The effective mechanical properties of the CNTRC beam are predicted using the rule of mixtures. Hamilton's principle is applied to derive the differential equations of motion. This theoretical framework enables the validation of the approach by comparing numerical simulation results with previous studies. The impact of the exponent order (n), CNT volume fraction, geometrical ratio, and Winkler-Pasternak parameters on buckling analysis is thoroughly presented and discussed. The results indicate that, among the different types of analyzed CNTRC beams, the X-Beam pattern demonstrates the highest buckling load capacity.

키워드

과제정보

The authors would like to express their gratitude to King Khalid University's Deanship Scientific Research for funding this work as part of a large group research project with grant number RGP2/463/44.

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