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XFEM Modelling and Experimental Observations of Foam Concrete Beam Externally-Bonded with KFRP Sheet

Latin American journal of solids and structures, 2022, Vol.19 (6) [Peer Reviewed Journal]

This work is licensed under a Creative Commons Attribution 4.0 International License. ;ISSN: 1679-7817 ;ISSN: 1679-7825 ;EISSN: 1679-7825 ;DOI: 10.1590/1679-78257205

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  • Title:
    XFEM Modelling and Experimental Observations of Foam Concrete Beam Externally-Bonded with KFRP Sheet
  • Author: Maulana, Malik Ridwan ; Sugiman, Sugiman ; Ahmad, Hilton ; Jaini, Zainorizuan Mohd ; Mansor, Hazrina
  • Subjects: ENGINEERING, CIVIL ; ENGINEERING, MECHANICAL ; MECHANICS
  • Is Part Of: Latin American journal of solids and structures, 2022, Vol.19 (6)
  • Description: Abstract This paper investigates the effect of KFRP composite sheets as a strengthening material in improving the load-carrying resistance of lightweight foam concrete beams using a FEA modelling framework. The study employed three parametric strengthening schemes (i.e., KFRP length, woven architecture types and KFRP thickness). Twenty-seven beam specimens were tested, and respective failure modes and ultimate load at failure were discussed. All the strengthened beam specimens failed mostly in shear mode and, to a lesser extent, in FRP fracture. Despite the absence of de-bonding failure, improvement of strengthening using KFRP sheet technique was exhibited. Later, Extended Finite Element Method (XFEM) Modelling was incorporated following failure mode exhibited. Strength predictions incorporating the traction-separation relationship using XFEM techniques. Validation work with experimental datasets showed good agreements with average discrepancies of less than 10%. The numerical approach can be used as a strength prediction tool in concrete beams with externally bonded FRPs.
  • Publisher: Associação Brasileira de Ciências Mecânicas
  • Language: English;Portuguese
  • Identifier: ISSN: 1679-7817
    ISSN: 1679-7825
    EISSN: 1679-7825
    DOI: 10.1590/1679-78257205
  • Source: SciELO
    ROAD: Directory of Open Access Scholarly Resources
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