Concrete Damage Plasticity Model for Modeling FRP-to-Concrete Bond Behavior

AbstractThe technique of externally bonding fiber-reinforced polymer (FRP) composites has become very popular worldwide for retrofitting existing reinforced concrete (RC) structures. Debonding of FRP from the concrete substrate is a typical failure mode in such strengthened structures. The bond behavior between FRP and concrete thus plays a crucial role in these structures. The FRP-to-concrete bond behavior has been extensively investigated experimentally, commonly using a single or double shear test of the FRP-to-concrete bonded joint. Comparatively, much less research has been concerned with numerical simulation, chiefly due to difficulties in the accurate modeling of the complex behavior of concrete. This paper presents a simple but robust finite-element (FE) model for simulating the bond behavior in the entire debonding process for the single shear test. A concrete damage plasticity model is proposed to capture the concrete-to-FRP bond behavior. Numerical results are in close agreement with test data,...

[1]  W. Rankine.  II. On the stability of loose earth , 1857, Philosophical Transactions of the Royal Society of London.

[2]  Jeeho Lee,et al.  Plastic-Damage Model for Cyclic Loading of Concrete Structures , 1998 .

[3]  Zhishen Wu,et al.  Nonlinear constitutive model for time-dependent behavior of FRP-concrete interface , 2007 .

[4]  Eivind Hognestad,et al.  A STUDY OF COMBINED BENDING AND AXIAL LOAD IN REINFORCED CONCRETE MEMBERS; A REPORT OF AN INVESTIGATION CONDUCTED BY THE ENGINEERING EXPERIMENT STATION, UNIVERSITY OF ILLINOIS, UNDER AUSPICES OF THE ENGINEERING FOUNDATION, THROUGH THE REINFORCED CONCRETE RESEARCH COUNCIL. , 1951 .

[5]  Z. Bažant,et al.  Crack band theory for fracture of concrete , 1983 .

[6]  Maria M. Lopez,et al.  Numerical Modeling of Concrete-FRP Debonding Using a Crack Band Approach , 2010 .

[7]  L. P. Sanez,et al.  DISCUSSION OF EQUATION FOR THE STRESS - STRAIN CURVE OF CONCRETE’ BY DESAYI AND KRISHNAN , 1964 .

[8]  Jeanine Weekes Schroer,et al.  The Finite String Newsletter Abstracts of Current Literature Glisp User's Manual , 2022 .

[9]  Victor E. Saouma,et al.  Analysis of Test Specimens for Cohesive Near-Bond Failure of Fiber-Reinforced Polymer-Plated Concrete , 2004 .

[10]  Zhishen Wu,et al.  Full-range behavior of FRP-to-concrete bonded joints , 2004 .

[11]  Jin-Guang Teng,et al.  Meso-scale finite element model for FRP sheets/plates bonded to concrete , 2005 .

[12]  Guangming Chen,et al.  On the finite element modelling of RC beams shear-strengthened with FRP , 2012 .

[13]  Jian Fei Chen,et al.  Finite element modelling of multiple cohesive discrete crack propagation in reinforced concrete beams , 2005 .

[14]  Riadh Al-Mahaidi,et al.  Modelling of CFRP-concrete shear-lap tests , 2007 .

[15]  J. Rots.  Smeared and discrete representations of localized fracture , 1991 .

[16]  Clyde E. Kesler,et al.  Behavior of Concrete Columns Reinforced with High Strength Steels , 1964 .

[17]  J. Teng,et al.  Finite element simulation of debonding in FRP-to-concrete bonded joints , 2006 .

[18]  C. Majorana,et al.  Three‐dimensional modelling of bond behaviour between concrete and FRP reinforcement , 2011 .

[19]  Jian Fei Chen,et al.  Three dimensional stress distribution in FRP-to-concrete bond test specimens , 2006 .

[20]  Jessica Toti,et al.  A coupled interface-body nonlocal damage model for FRP strengthening detachment , 2012 .

[21]  Maria M. Lopez,et al.  Damage Approach for the Prediction of Debonding Failure on Concrete Elements Strengthened with FRP , 2007 .

[22]  Jian fei Chen,et al.  Anchorage strength models for FRP and steel plates bonded to concrete , 2001 .

[23]  Gilles Pijaudier-Cabot,et al.  CONTINUUM DAMAGE THEORY - APPLICATION TO CONCRETE , 1989 .

[24]  Michel Ghosn,et al.  Experimental Investigation and Fracture Analysis of Debonding between Concrete and FRP Sheets , 2006 .

[25]  Gary David Holt,et al.  FRP or steel plate-to-concrete bonded joints: Effect of test methods on experimental bond strength , 2001 .

[26]  Antonio Tralli,et al.  Delamination of FRP-Reinforced Concrete by means of an eXtended Finite Element Formulation , 2012 .

[27]  Pierre Labossière,et al.  Numerical Modeling of FRP Shear-Strengthened Reinforced Concrete Beams , 2007 .

[28]  Milan Jirásek,et al.  Damage-plastic model for concrete failure , 2006 .

[29]  Susanne Heyden,et al.  The effect of CFRP and CFRP/concrete interface models when modelling retrofitted RC beams with FEM , 2010 .

[30]  D. Proverbs,et al.  Finite element modelling of concrete cover separation failure in FRP plated RC beams , 2003 .

[31]  J. Rots.  Computational modeling of concrete fracture , 1988 .

[32]  E. Oñate,et al.  A plastic-damage model for concrete , 1989 .

[33]  Maria M. Lopez,et al.  Experimental Characterization of Concrete-Epoxy Interfaces , 2008 .

[34]  Karim Benzarti,et al.  A damage model to predict the durability of bonded assemblies. Part I: Debonding behavior of FRP strengthened concrete structures , 2011 .

[35]  G.M. Chen,et al.  Finite-element modeling of intermediate crack debonding in FRP-plated RC beams , 2011 .

[36]  E. A. Clark,et al.  CEB-FIP Model Code 1990 , 1995 .

[37]  Xiangting Su,et al.  Monte Carlo simulation of complex cohesive fracture in random heterogeneous quasi-brittle materials , 2009 .

[38]  Scott T Smith,et al.  Modeling debonding failure in FRP flexurally strengthened RC members using a local deformation model , 2007 .

[39]  Tao Yu,et al.  Finite element modeling of confined concrete-II: Plastic-damage model , 2010 .

[40]  Scott T. Smith,et al.  FRP: Strengthened RC Structures , 2001 .

[41]  Hong Yuan,et al.  Experimental/Analytical Study on Interfacial Fracture Energy and Fracture Propagation Along FRP-Concrete I n t e r f a c e , 2001, SP-201: Fracture Mechanics for Concrete Materials: Testing and Applications.

[42]  George Z. Voyiadjis,et al.  A plasticity and anisotropic damage model for plain concrete , 2007 .

[43]  K. Willam,et al.  Triaxial failure criterion for concrete and its generalization , 1995 .

[44]  D. Hordijk.  Local approach to fatigue of concrete , 1991 .

[45]  Z. Bažant,et al.  Fracture and Size Effect in Concrete and Other Quasibrittle Materials , 1997 .

[46]  Jin-Guang Teng,et al.  Bond-slip models for FRP sheets/plates bonded to concrete , 2005 .

[47]  E. Thorenfeldt.  Mechanical properties of high-strength concrete and applications in design , 1987 .

[48]  J. Teng,et al.  Debonding failure along a softening FRP-to-concrete interface between two adjacent cracks in concrete members , 2007 .

[49]  J. Yaoa,et al.  Experimental study on FRP-to-concrete bonded joints , 2004 .

[50]  Victor E. Saouma,et al.  Modelling of CFRP–concrete bond using smeared and discrete cracks , 2006 .

[51]  Björn Täljsten,et al.  Strengthening of concrete prisms using the plate-bonding technique , 1996 .