Numerical simulation of bond degradation subjected to corrosion-induced crack by simplified rebar and interface model using RBSM

Yang, Yizhou; Nakamura, Hikaru; Yamamoto, Yoshihito; Miura, Taito

doi:10.1016/j.conbuildmat.2020.118602

Cited by 20 publications

(6 citation statements)

References 29 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The calibration of material parameters of the constitutive models has been conducted through the parametric analyses (specimen size, shape, mesh size, and compressive strength of concrete) comparing with the macro stress-strain test relationships including the softening part subjected to uniaxial compression, hydrostatic compression, triaxial compression, and uniaxial tension [42,43]. After calibration of the material parameters as shown in Tables 1 and 2, the applicability of the calibrated model parameters in 3D-RBSM has been confirmed through the initiation and propagation of the cracks in the concrete under various structural and mechanical behaviors, e.g., shear response evaluation of reinforced concrete (RC) deep beams [45], RC wall panels subjected to cycling loading [46], numerical evaluation of localization and softening behavior of the concrete confined by steel tubes [44], the investigation of internal crack propagation behavior due to corrosion [47][48][49][50], the simulation of the bond behavior between steel and concrete [51], etc. Furthermore, the compression model of a normal spring does not include the softening behavior and the failure of the normal springs.…”

Section: Modeling Of Concrete Using 3d-rbsmmentioning

confidence: 99%

Numerical Evaluation of the Perfobond (PBL) Shear Connector Subjected to Lateral Pressure Using Coupled Rigid Body Spring Model (RBSM) and Nonlinear Solid Finite Element Method (FEM)

et al. 2020

Self Cite

View full text Add to dashboard Cite

An analytical investigation focusing on the concrete damage progress of the PBL shear connector under the influence of various lateral pressures, employing a coupled RBSM and solid FEM model was carried out. The analytical model succeeded in simulating the test shear capacities and the failure modes adequately. The internal failure process was also clarified; the two horizontal cracks occurred near the top of the concrete dowels through the hole of the perforated steel plate, and afterward, the two vertical cracks also initiated and propagated along with the shear surface. In a low lateral pressure case, the shear strength was determined by the vertical cracks propagated along the shear surface. While as the amount of applied lateral pressure increased, the shear strength of the two vertical cracked surfaces was enhanced, and the shear strength of the PBL was characterized by the occurrence of the splitting cracks and caused the splitting failure into the side concrete blocks. Moreover, the combined effects of lateral pressure and hole diameters were also evaluated numerically, and it was found that the increase in shear strength was more in a large diameter case subjected to high lateral pressure because of the wide compressive regions generated around the concrete dowel.

show abstract

Section: Modeling Of Concrete Using 3d-rbsmmentioning

confidence: 99%

Numerical Evaluation of the Perfobond (PBL) Shear Connector Subjected to Lateral Pressure Using Coupled Rigid Body Spring Model (RBSM) and Nonlinear Solid Finite Element Method (FEM)

et al. 2020

Self Cite

View full text Add to dashboard Cite

show abstract

“…The main causes of RCS failure are attributed to corrosion mechanisms of reinforcements, and the exerted pressure the oxide scale originates in the steel/concrete interface leading to spallation: (i) First, they promote the loss of bonding and (ii) second, a recrystallization pressure develops, putting the concrete under tension. This extra pressure nucleates the first cracks, leading to spallation of the concrete cover [19][20][21][22]. Engineering failure analysis of RCSs has concluded that reinforcement corrosion is a key factor in the loss of concrete sections.…”

Section: Introductionmentioning

confidence: 99%

Integrity Assessment of Stress Corrosion Cracking Susceptibility of Duplex UNS S32205 and Austenitic UNS S31653 Stainless Steel Reinforcements

Martin,

Bastidas

2023

Metals

View full text Add to dashboard Cite

Herein, the stress corrosion cracking (SCC) susceptibility of duplex (UNS S32205) and austenitic (UNS S31653) stainless steel (SS) reinforcements was evaluated using integrity assessment criteria. Mechanical properties were analyzed and compared by different SCC susceptibility factors. The integrity assessment was conducted applying Cosenza, Creazza, and Ortega ductility criteria, following three different standards (ACI 318-19, ASTM A615, and FIB). A conventional carbon steel (UNS G10080) reinforcement was also evaluated for comparative purposes, whose high residual stress value (>280 MPa) promoted a high corrosion growth rate. Duplex UNS S32205 SS grade showed a significant decrease in elongation, leading to failure after ductility assessment at high chloride concentrations. Fractographic analysis of both SS grades, duplex and austenitic, revealed less than 40% brittle areas at 8 wt.% Cl−, while UNS G10080 had over 85% at 4 wt.% Cl−.

show abstract

“…Li and Song [13] studied the bond performance of light weight concrete in 2020. e commonly used bond test is pull-out test, while numerical tools have also been involved to study the bond behaviour [14,15]. e bond stress distribution is a very important result in the bond test of OPC which can be used in the bond-slip model and numerical analysis [16][17][18].…”

Section: Introductionmentioning

confidence: 99%

Bond Stress between Steel‐Reinforced Bars and Fly Ash‐Based Geopolymer Concrete

Cui

Zhang

Bao

2020

Advances in Materials Science and Engineering

View full text Add to dashboard Cite

Geopolymer concrete has been regarded as one of the most important green construction materials, which has been restrained in engineering applications partially due to a lack of bond studies. The structural performance of the reinforced concrete components primarily relies on the sufficient bond between the concrete and the reinforcing bars. Before being utilized in any concrete structure, GPC must demonstrate that it possesses understandable bond behaviour with commercial steel reinforcements. This work presents an experimental investigation on the bond stress of steel bars in reinforced geopolymer concrete (GPC) structures. Standard beam-end pull-out tests were conducted on GPC specimens reinforced with 16 mm plain and ribbed bars that were equipped with electrical resistance strain gauges. The longitudinal variation in the bond stress in the GPC beams during the pull-out tests was calculated and plotted, as well as the stress in steel bars. The cracks on the bond area of the GPC were compared with those of the corresponding ordinary Portland cement concrete (OPC), as well as the steel stress and bond stress. The results showed that the relative slip between plain bar and geopolymer concrete varies from 30–450 microns from the loaded end to the free end when the bond stress decreased by 83%. The relative slip between ribbed bar and geopolymer concrete varies from 280–3,000 microns from the loaded end to the free end when the bond stress decreased by 57%. Generally, GPC is different from OPC in terms of bond stress distribution.

show abstract

Numerical simulation of bond degradation subjected to corrosion-induced crack by simplified rebar and interface model using RBSM

Cited by 20 publications

References 29 publications

Numerical Evaluation of the Perfobond (PBL) Shear Connector Subjected to Lateral Pressure Using Coupled Rigid Body Spring Model (RBSM) and Nonlinear Solid Finite Element Method (FEM)

Numerical Evaluation of the Perfobond (PBL) Shear Connector Subjected to Lateral Pressure Using Coupled Rigid Body Spring Model (RBSM) and Nonlinear Solid Finite Element Method (FEM)

Integrity Assessment of Stress Corrosion Cracking Susceptibility of Duplex UNS S32205 and Austenitic UNS S31653 Stainless Steel Reinforcements

Bond Stress between Steel‐Reinforced Bars and Fly Ash‐Based Geopolymer Concrete

Contact Info

Product

Resources

About