Computers and Concrete

  • 제7권5호
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  • Pages.437-453
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  • 2010
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  • 1598-8198(pISSN)
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  • 1598-818X(eISSN)
테크노프레스 (Techno-Press)
권호 표지
DOI QR코드

DOI QR Code

Nonlinear finite element analysis of effective CFRP bonding length and strain distribution along concrete-CFRP interface

  • 투고 : 2009.10.01
  • 심사 : 2010.04.16
  • 발행 : 2010.10.25
⟨ 이전 논문 다음 논문 ⟩

초록

CFRP has been widely used for strengthening reinforced concrete members in last decade. The strain transfer mechanism from concrete face to CFRP is a key factor for rigidity, ductility, energy dissipation and failure modes of concrete members. For these reasons, determination of the effective CFRP bonding length is the most crucial step to achieve effective and economical strengthening. In this paper, generalizations are made on effective bonding length by increasing the amount of test data. For this purpose, ANSYS software is employed, and an experimentally verified nonlinear finite element model is prepared. Special contact elements are utilized along the concrete-CFRP strip interface for investigating stress distribution, load-displacement behavior, and effective bonding length. Then results are compared with the experimental results. The finite element model found consistent results with the experimental findings.

키워드

참고문헌

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피인용 문헌

  1. Nonlinear finite element analysis of loading transferred from column to socket base vol.11, pp.5, 2013, https://doi.org/10.12989/cac.2013.11.5.475
  2. Debonding failure analysis of FRP-retrofitted concrete panel under blast loading vol.38, pp.4, 2010, https://doi.org/10.12989/sem.2011.38.4.479
  3. A stress-function variational approach toward CFRP -concrete interfacial stresses in bonded joints vol.9, pp.1, 2010, https://doi.org/10.12989/acc.2020.9.1.043