Experimentally based parameters applied to concrete damage plasticity model for strain hardening cementitious composite in sandwich pipes

Cheng, Huarong; Paz, Claudio M.; Pinheiro, Bianca; Estefen, Segen F.

doi:10.1617/s11527-020-01513-9

Cited by 21 publications

(27 citation statements)

References 44 publications

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“…Young's modulus, Poisson's ratio, ultimate uniaxial tension strength, ultimate uniaxial compression strength, diagram of concrete deformations in the axes "force versus CMOD" from bending test, Dilation angle ψ measured in the p-q plane at high confining pressure, default values concerning the ratio of initial equibiaxial compressive yield stress to initial uniaxial compressive yield stress, flow potential eccentricity and coefficient of the shape of plastic surface flow were the variables used to configure the parameters of the accumulated damage concrete damage plasticity model. These parameters' values were chosen in accordance with tests, regulatory document specifications, numerical modeling, and recommendations made in scientific and technical documents [4], [18], [19], [20], [21]. Based on the findings of a concrete test under bending, a method for creating a diagram of the severe deformation of concrete under uniaxial strain is used.…”

Section: Methodsmentioning

confidence: 99%

Finite Element Modelling and Analysis of Fiber Reinforced Concrete under Tensile and Flexural Loading

Srikanth

Kowshik

Narasimha³

et al. 2022

JCMM

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Concrete is a material exhibiting high compressive strength but about tenfold lower tensile strength. Its brittle property also prohibits the transmission of stresses after cracking. Thus, steel, polymer, polypropylene, glass, carbon, and other fibers are added to concrete to form fiber-reinforced concretes (FRC) having enhanced mechanical properties. The utilization of fiber-reinforced concrete is widespread. Identifying the mechanical properties of fiber-reinforced cement composites under dynamic loading, establishing relationships between their composition, structure, and properties, justifying the correct mathematical model, and determining its parameters are challenging. Utilizing finite elemental modeling and analysis to comprehend the mechanical characteristics of the FRC addition to concrete bricks has shown considerable benefit. In the present study, polypropylene microfibers are included in fiber-reinforced concrete composites, and their performance is compared to that of unreinforced concrete bricks. Under FEA analysis, three-point bending and uniaxial tensile tests were conducted. The results indicate that using fiber reinforcements increases the tensile strength and endurance of the brick.

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Section: Methodsmentioning

confidence: 99%

Finite Element Modelling and Analysis of Fiber Reinforced Concrete under Tensile and Flexural Loading

Srikanth

Kowshik

Narasimha³

et al. 2022

JCMM

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“…Different laws have been established based on experimental data, 10,11 and theoretical descriptions. 12,13 Simple evolution laws are commonly used to simulate the nonlinear response of concretes 14 and ultrahigh performance fiber reinforced concretes. 15,16 The equivalent uniaxial plastic strain is employed to quantify the damage field, as suggested by Birtel and Mark.…”

Section: Introductionmentioning

confidence: 99%

“…The yield function and plastic potential parameters for the FRCC are appropriately selected from experimental tests in fiber-reinforced cementitious composites. 11,13,[17][18][19][20][21] Validation of the constitutive model is set up by numerical simulations of uniaxial tensile, uniaxial compressive, and four-point bending tests.…”

Section: Introductionmentioning

confidence: 99%

New damage evolution law in plastic damage models for fiber‐reinforced cementitious composites

Júnior,

Krahl,

Monteiro

et al. 2023

Structural Concrete

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Nowadays, fiber‐reinforced cement‐based composites (FRCC) can develop ductile behavior with high toughness when the matrix, fibers, and interface are optimally designed. These materials are promising solutions for constructing more resilient structures. In this context, the widespread use in large‐scale applications requires reliable models to predict the performance of FRCC structures. Usually, the studies on numerical modeling of FRCC apply the damage laws developed for quasi‐brittle concrete, making damage increase faster than really occurs in the presence of fibers. Therefore, the present paper proposes a new damage evolution model for FRCC based on energy dissipation concepts. It is assumed that the dissipated energy contributes fully to the evolution of the scalar damage and plastic strain variables, which is a technical advance from the previous works. The damage evolution is obtained with experimental envelopes of uniaxial stress–strain tests and the focal point from loading–unloading cycles. The results showed that the model accurately predicted experimental results using the damage‐plasticity framework. Furthermore, there are no empirical constants in the proposal, which means that it can be applied to any class of FRCC. An application regarding damage evaluation near a load transfer device in jointed plain cementitious pavements is presented. The damage distribution reveals that using FRCC materials has induced smaller damage values when compared with using conventional concrete. Consequently, cracking is reduced in such zones, increasing the structural life of the pavement.

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“…Currently, triaxial tests are used to study brittle materials such as concrete and rocks; thus, reports about triaxial tests on asphalt mixtures are very limited [ 15 ]. Currently, split tensile tests and flexural tests based on a single indicator are most commonly used for asphalt mixtures [ 16 , 17 ]. In fact, the stress direction of an asphalt mixture is not unique in actual situations.…”

Section: Introductionmentioning

confidence: 99%

A study on the influences of a hygrothermal environment on the compressive strength and failure criteria of asphalt mixtures based on true triaxial tests

Wang

Elchalakani

Zhou

et al. 2022

Heliyon

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Experimentally based parameters applied to concrete damage plasticity model for strain hardening cementitious composite in sandwich pipes

Cited by 21 publications

References 44 publications

Finite Element Modelling and Analysis of Fiber Reinforced Concrete under Tensile and Flexural Loading

Finite Element Modelling and Analysis of Fiber Reinforced Concrete under Tensile and Flexural Loading

New damage evolution law in plastic damage models for fiber‐reinforced cementitious composites

A study on the influences of a hygrothermal environment on the compressive strength and failure criteria of asphalt mixtures based on true triaxial tests

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