A plastic-damage constitutive model for the finite element analysis of fibre reinforced concrete

Mihai, Iulia; Jefferson, Tony; Lyons, Paul

doi:10.1016/j.engfracmech.2015.12.035

Cited by 42 publications

(16 citation statements)

References 45 publications

(82 reference statements)

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“…According to these curves, there is a good agreement between experimental and modeling results. However, results of the proposed model are more accurate than those by Mihai et al. (2016).…”

Section: Numerical Simulationmentioning

confidence: 83%

“…According to the proposed model, FRC samples (T4–T9) were modeled based on initial data presented in Table 9 (constants required for modeling corresponding concrete matrix of these samples are presented in Table 3). In Figures 4 and 5, modeling results were compared to experimental results and the simulations by Mihai et al. (2016).…”

Section: Numerical Simulationmentioning

confidence: 99%

“…In contrast to the existing comprehensive experimental data about the specifications and behavior of FRC, limited study has been conducted on constitutive modeling of this material with the capability of complete simulation of FRC under complex loading paths. Attempts for constitutive modeling of SFRC resulted in some considerable advances (Hameed et al., 2013; Li et al., 2017; Luccioni et al., 2012; Mihai et al., 2016; Yaghoobi and Chorzepa, 2015; Zhang et al., 2020). In the majority of these models, plain concrete models along with some sub-models were used to describe fiber-bridging effects.…”

Section: Introductionmentioning

confidence: 99%

“…Their model considered only the effect of fibers on tensile stresses. Mihai et al. (2016) modeled FRC by modifying an elastoplastic contact damage model for plain concrete.…”

Section: Introductionmentioning

confidence: 99%

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Constitutive modeling of steel fiber-reinforced concrete

Moradi

Bagherieh

Esfahani

2019

International Journal of Damage Mechanics

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Experimental studies within the previous years showed that the behavior of concrete is improved by adding steel fibers. Due to bridging effect, steel fibers in a concrete matrix prevent crack propagation under static loads. This phenomenon increases the load-bearing capacity of steel fiber-reinforced concrete, specifically after the peak load. In contrast to similar studies, in this study the effect of fibers on steel fiber-reinforced concrete is directly described based on uniaxial compressive and tensile stress–strain curves. For this purpose, the effect of fiber on the stress variations is extracted from the difference between steel fiber-reinforced concrete and its corresponding concrete matrix uniaxial stress–strain curves. These differential stress curves were extracted from 103 experimental specimens, collected from the literature. Then, some equations were developed for them with appropriate accuracy, using genetic programming technique. These equations were only based on primary specifications of fibers and concrete matrix. In the next stage, an elastoplastic damage constitutive model initially developed for plain concrete was modified, using the developed steel fiber-reinforced concrete modeling equations. The proposed model was implemented in a finite element analysis software and successfully simulated the steel fiber-reinforced concrete behavior subjected to uniaxial and flexural experiments.

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“…According to these curves, there is a good agreement between experimental and modeling results. However, results of the proposed model are more accurate than those by Mihai et al. (2016).…”

Section: Numerical Simulationmentioning

confidence: 83%

Section: Numerical Simulationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

“…Their model considered only the effect of fibers on tensile stresses. Mihai et al. (2016) modeled FRC by modifying an elastoplastic contact damage model for plain concrete.…”

Section: Introductionmentioning

confidence: 99%

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Constitutive modeling of steel fiber-reinforced concrete

Moradi

Bagherieh

Esfahani

2019

International Journal of Damage Mechanics

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“…The damage evolution in fibrous composites mainly includes pull-out of fibers (Bechel and Sottos, 1998;Jiang et al, 2018;Lin et al, 2001;Park et al, 2017;Tsai and Kim, 1996), crack propagation in matrix and fracture of fibers (Brinson, 1999;Jin et al, 2017;Kumar and Talreja, 2003;Mihai et al, 2016;Okabe et al, 2017;Vorobiev et al, 2017;Voyiadjis and Deliktas, 2000;Wu and Ohno, 1999), and interfacial debonding (Caiazzo and Costanzo, 2000;Han et al, 2001;Harik and Cairncross, 2000;Heidarhaei et al, 2017;Li, 2018;Nedjar, 2014;Pupurs and Varna, 2015;Zhang et al, 2018).…”

Section: Introductionmentioning

confidence: 99%

Damage evolution in fibrous composites caused by interfacial debonding

Yang

Chen

Huang

2019

International Journal of Damage Mechanics

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Interfacial debonding between fibers and matrix is one of the dominant damage types in fibrous composites. This paper investigates weakening effect due to the interfacial debonding. For simplification, the fibers are assumed to be rigid since the modulii and strength of fibers are much greater than those of matrix, and the distribution of the radii of fibers is assumed to obey the logarithmic normal distribution. The matrix is assumed to be a viscoelastic material. The boundary of the composite is subjected to transverse loading condition, the direction of which is perpendicular to that of fibers. The interfacial debonding between fibers and matrix is analyzed by the energy criterion, and the evolution formula of nucleated porosity due to the debonding is derived by the statistical approach. A newly defined volume average method is proposed to establish the macroscopic constitutive relation of the composites. The effect of the material parameters of matrix, as well as the size of fibers on the critical stress for the interfacial debonding and damage evolution are discussed in detail. The results obtained in this paper indicate that the macroscopic strain rate, the dispersion degree of the fiber's radii, the adhesive energy at the interface, and loading condition play key roles in the overall mechanical properties of the composites.

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Research on coupled erosion damage model of FRP bonded concrete beams subjected to Lemaitre assumption

Zou,

2023

Polymer Composites

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In cold regions, the coupling of freeze–thaw cycles and sulfate frequently impairs the performance of FRP‐bonded concrete, resulting in a shortened service life. Carbon fiber polymer (CFRP) and glass fiber polymer (GFRP) are used to paste pre‐cracked concrete beams in the experiment, and three unfavorable environments are created: freeze–thaw cycle, 10% sulfate solution erosion, and coupling erosion. This paper investigates the durability performance of FRP bonded beams using microscopic, mechanical and dynamic modulus of elasticity tests, as well as post‐erosion damage values and finite element modeling. After 400 h of coupled erosion, sulphate erosion and freeze–thaw cyclic erosion environments, the strength of the CFRP bonded beams was reduced by 66.3%, 14.6% and 42.0% and the GFRP bonded beams by 67%, 21.9% and 52.3% respectively. The results show that single sulphate attack does not cause significant damage to the beams, but it can exacerbate the damage caused by freeze–thaw cycles. A coupled damage model based on the Lemaitre strain equivalence assumption predicted the actual coupled damage of the specimens. The finite element model can accurately predict the damage and strength of the bond surface under loading.Highlights The durability performance of CFRP and GFRP adhered pre‐cracked concrete beams Microscopic, mechanical, and dynamic elastic modulus tests are used Freeze–thaw erosion environment in 10% mass fraction sulphate solution Coupled damage models for coupled salt and freeze–thaw cycles are developed FRP‐reinforced pre‐cracked beams subjected to erosion are simulated with ABAQUS

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A plastic-damage constitutive model for the finite element analysis of fibre reinforced concrete

Cited by 42 publications

References 45 publications

Constitutive modeling of steel fiber-reinforced concrete

Constitutive modeling of steel fiber-reinforced concrete

Damage evolution in fibrous composites caused by interfacial debonding

Research on coupled erosion damage model of FRP bonded concrete beams subjected to Lemaitre assumption

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