Mohr-coulomb model for rectangular and square FRP-confined concrete

Domingo A. Moran, Chris P Pantelides, Lawrence D. Reaveley

Research output: Contribution to journalArticle

Abstract

An analytical stress-strain model for fiber reinforced polymer (FRP) confined concrete is developed for predicting the compressive and dilation behavior of rectangular and square cross-sections with rounded corners. An iterative as well as a non-iterative two parameter Mohr-Coulomb yield criterion are introduced for analyzing the compressive behavior of FRP-confined concrete. A new diagonal Poisson's ratio formulation is employed which describes the dilation behavior of FRP-confined concrete as a function of the mechanical properties of unconfined concrete, FRP jacket, section geometry, and internal damage of the confined concrete core. Equilibrium and strain compatibility are used to obtain the ultimate concrete compressive strength and strain as a function of the effective confining stiffness of the FRP jacket and transverse strains. Simplified expressions are derived for the FRP reinforcement ratio which precludes strain-softening in rectangular and square FRP-confined concrete sections.

LanguageEnglish (US)
Pages889-904
Number of pages16
JournalComposite Structures
Volume209
DOIs
StatePublished - Feb 1 2019

Fingerprint

Fiber reinforced plastics
Reinforced plastics
Stress-strain curves
Compressive strength
Ductility
Reinforcement
Polymers
Concretes
Mechanical properties
Fibers
Poisson ratio
Stiffness
Geometry

Keywords

  • Column
  • Concrete
  • Dilation
  • Ductility
  • Fiber reinforced polymer composites
  • Strain
  • Stress

ASJC Scopus subject areas

  • Ceramics and Composites
  • Civil and Structural Engineering

Cite this

Mohr-coulomb model for rectangular and square FRP-confined concrete. / Moran, Domingo A.; Pantelides, Chris P; Reaveley, Lawrence D.

In: Composite Structures, Vol. 209, 01.02.2019, p. 889-904.

Research output: Contribution to journalArticle

Moran, Domingo A. ; Pantelides, Chris P ; Reaveley, Lawrence D. / Mohr-coulomb model for rectangular and square FRP-confined concrete. In: Composite Structures. 2019 ; Vol. 209. pp. 889-904.
@article{08757e5092ec485f9d1be78641464137,
title = "Mohr-coulomb model for rectangular and square FRP-confined concrete",
abstract = "An analytical stress-strain model for fiber reinforced polymer (FRP) confined concrete is developed for predicting the compressive and dilation behavior of rectangular and square cross-sections with rounded corners. An iterative as well as a non-iterative two parameter Mohr-Coulomb yield criterion are introduced for analyzing the compressive behavior of FRP-confined concrete. A new diagonal Poisson's ratio formulation is employed which describes the dilation behavior of FRP-confined concrete as a function of the mechanical properties of unconfined concrete, FRP jacket, section geometry, and internal damage of the confined concrete core. Equilibrium and strain compatibility are used to obtain the ultimate concrete compressive strength and strain as a function of the effective confining stiffness of the FRP jacket and transverse strains. Simplified expressions are derived for the FRP reinforcement ratio which precludes strain-softening in rectangular and square FRP-confined concrete sections.",
keywords = "Column, Concrete, Dilation, Ductility, Fiber reinforced polymer composites, Strain, Stress",
author = "Moran, {Domingo A.} and Pantelides, {Chris P} and Reaveley, {Lawrence D.}",
year = "2019",
month = "2",
day = "1",
doi = "10.1016/j.compstruct.2018.11.024",
language = "English (US)",
volume = "209",
pages = "889--904",
journal = "Composite Structures",
issn = "0263-8223",
publisher = "Elsevier BV",

}

TY - JOUR

T1 - Mohr-coulomb model for rectangular and square FRP-confined concrete

AU - Moran, Domingo A.

AU - Pantelides, Chris P

AU - Reaveley, Lawrence D.

PY - 2019/2/1

Y1 - 2019/2/1

N2 - An analytical stress-strain model for fiber reinforced polymer (FRP) confined concrete is developed for predicting the compressive and dilation behavior of rectangular and square cross-sections with rounded corners. An iterative as well as a non-iterative two parameter Mohr-Coulomb yield criterion are introduced for analyzing the compressive behavior of FRP-confined concrete. A new diagonal Poisson's ratio formulation is employed which describes the dilation behavior of FRP-confined concrete as a function of the mechanical properties of unconfined concrete, FRP jacket, section geometry, and internal damage of the confined concrete core. Equilibrium and strain compatibility are used to obtain the ultimate concrete compressive strength and strain as a function of the effective confining stiffness of the FRP jacket and transverse strains. Simplified expressions are derived for the FRP reinforcement ratio which precludes strain-softening in rectangular and square FRP-confined concrete sections.

AB - An analytical stress-strain model for fiber reinforced polymer (FRP) confined concrete is developed for predicting the compressive and dilation behavior of rectangular and square cross-sections with rounded corners. An iterative as well as a non-iterative two parameter Mohr-Coulomb yield criterion are introduced for analyzing the compressive behavior of FRP-confined concrete. A new diagonal Poisson's ratio formulation is employed which describes the dilation behavior of FRP-confined concrete as a function of the mechanical properties of unconfined concrete, FRP jacket, section geometry, and internal damage of the confined concrete core. Equilibrium and strain compatibility are used to obtain the ultimate concrete compressive strength and strain as a function of the effective confining stiffness of the FRP jacket and transverse strains. Simplified expressions are derived for the FRP reinforcement ratio which precludes strain-softening in rectangular and square FRP-confined concrete sections.

KW - Column

KW - Concrete

KW - Dilation

KW - Ductility

KW - Fiber reinforced polymer composites

KW - Strain

KW - Stress

UR - http://www.scopus.com/inward/record.url?scp=85056623760&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85056623760&partnerID=8YFLogxK

U2 - 10.1016/j.compstruct.2018.11.024

DO - 10.1016/j.compstruct.2018.11.024

M3 - Article

VL - 209

SP - 889

EP - 904

JO - Composite Structures

T2 - Composite Structures

JF - Composite Structures

SN - 0263-8223

ER -