基于局部损伤混凝土模型的FRP-混凝土界面有限元分析研究

Translated title of the contribution: Numerical analysis of FRP-concrete bond behaviour based on a local concrete damage model

X. Li, J. Chen, Y. Lu, Z. Yang, Q. Xu

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)

Abstract

A meso-scale finite element model is presented for investigating the FRP-concrete bond behaviour under static and dynamic loadings. It adopts a local concrete damage model. A large number of single shear tests under static pull-off loading were modeled. It is demonstrated that the developed model can satisfactorily simulate the static debonding behaviour, in terms of the load-carrying capacity and the local bond-slip behaviour. A preliminary study of the effect of the dynamic loading rate on the debonding behaviour was also conducted by considering a dynamic increase factor for the concrete strength as a function of strain rate. It is shown that a higher loading rate leads to a higher load-carrying capacity, a longer effective bond length, and a larger damaged area of concrete in the single shear loading scenario.

Translated title of the contributionNumerical analysis of FRP-concrete bond behaviour based on a local concrete damage model
Original languageChinese
Pages (from-to)62-65
Number of pages4
JournalXi'an Jianzhu Keji Daxue Xuebao/Journal of Xi'an University of Architecture and Technology
Volume47
Issue number1
DOIs
Publication statusPublished - 01 Feb 2015

Keywords

  • Dynamic bond-slip
  • Dynamic increasing factor (DIF)
  • FRP-concrete bonded joints
  • Loading rates
  • Local concrete damage model

ASJC Scopus subject areas

  • Building and Construction
  • Architecture
  • Arts and Humanities (miscellaneous)

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