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3D Finite Element Modeling of FRP-Confined Rectangular Short Columns Considering Variation of Poisson’s Ratio

  • Mohammad Rasouli
  • Vahid BroujerdianEmail author
Research Paper
  • 3 Downloads

Abstract

This paper presents a realistic as well as detailed 3D finite element model within the framework of concrete damage plasticity model in ABAQUS software to predict the behavior of CFRP-confined concrete short columns with various rectangular and square cross-sectional areas subjected to compressive monotonic loading. Considering a suitable yield criterion, orthotropic behavior of concrete is taken into account. Furthermore, to account for the hydrostatic-pressure-dependence behavior of concrete, a non-associated flow rule based on Drucker–Prager potential function is adopted in the simulation. As an intrinsic behavior of concrete, the phenomenon of variation of Poisson’s ratio is modeled by using the USDFLD subroutine available in the software package, and the effect of Poisson’s ratio variation on the responses is investigated. To this end, nineteen specimens examined in three previous studies are numerically modeled using the proposed approach for two cases, namely fixed and variable Poisson’s ratio (totally 38 numerical models). Comparisons between experimental and numerical results corroborate that the proposed numerical approach is very appropriate for estimating both the ultimate axial strain and the axial stress–strain behavior of the CFRP-confined concrete columns.

Keywords

Fiber reinforced polymer (FRP) Confinement Concrete column Finite element model Concrete damage plasticity 

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Copyright information

© Shiraz University 2019

Authors and Affiliations

  1. 1.School of Civil EngineeringIran University of Science & TechnologyNarmakIran

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