A study on the effect of externally bonded composite plate-concrete interfaces

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

This paper presents a numerical model to simulate the interface fracture behavior of concrete strengthened with composite plate. The developed model uses lattice-based elements and nonlinear fracture mechanics concepts are addressed to investigate the interface failure behavior. The material properties for concrete and interface are assigned probabilistic, and a normal distribution with c.o.v 10% is used for the probabilistic approach. Numerical simulations of direct shear specimen and four point bending RC beams are conducted to investigate the interface bond stress distribution, load-displacement response and failure mechanism. Parameter studies are carried out to investigate the effect of interface material properties-elastic modulus, tensile strength, and fracture energy-on the behavior of concrete specimen strengthened with external composite plate. The predicted responses from the numerical analysis are found to be in good agreement with experimental values.

Original languageEnglish
Pages (from-to)403-412
Number of pages10
JournalComposite Structures
Volume82
Issue number3
DOIs
Publication statusPublished - 2008 Feb 1

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Concretes
Composite materials
Materials properties
Fracture energy
Normal distribution
Fracture mechanics
Stress concentration
Numerical analysis
Numerical models
Loads (forces)
Tensile strength
Elastic moduli
Computer simulation

All Science Journal Classification (ASJC) codes

  • Ceramics and Composites
  • Civil and Structural Engineering

Cite this

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title = "A study on the effect of externally bonded composite plate-concrete interfaces",
abstract = "This paper presents a numerical model to simulate the interface fracture behavior of concrete strengthened with composite plate. The developed model uses lattice-based elements and nonlinear fracture mechanics concepts are addressed to investigate the interface failure behavior. The material properties for concrete and interface are assigned probabilistic, and a normal distribution with c.o.v 10{\%} is used for the probabilistic approach. Numerical simulations of direct shear specimen and four point bending RC beams are conducted to investigate the interface bond stress distribution, load-displacement response and failure mechanism. Parameter studies are carried out to investigate the effect of interface material properties-elastic modulus, tensile strength, and fracture energy-on the behavior of concrete specimen strengthened with external composite plate. The predicted responses from the numerical analysis are found to be in good agreement with experimental values.",
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A study on the effect of externally bonded composite plate-concrete interfaces. / Lim, Yun Mook; Shin, S. K.; Kim, Moon Kyum.

In: Composite Structures, Vol. 82, No. 3, 01.02.2008, p. 403-412.

Research output: Contribution to journalArticle

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AB - This paper presents a numerical model to simulate the interface fracture behavior of concrete strengthened with composite plate. The developed model uses lattice-based elements and nonlinear fracture mechanics concepts are addressed to investigate the interface failure behavior. The material properties for concrete and interface are assigned probabilistic, and a normal distribution with c.o.v 10% is used for the probabilistic approach. Numerical simulations of direct shear specimen and four point bending RC beams are conducted to investigate the interface bond stress distribution, load-displacement response and failure mechanism. Parameter studies are carried out to investigate the effect of interface material properties-elastic modulus, tensile strength, and fracture energy-on the behavior of concrete specimen strengthened with external composite plate. The predicted responses from the numerical analysis are found to be in good agreement with experimental values.

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