Modeling the Tensile Behavior of Fiber-Reinforced Strain-Hardening Cement-Based Composites: A Review

Ribeiro, Paula de Oliveira; Krahl, Pablo Augusto; Carrazedo, Ricardo; Bernardo, Luís

doi:10.3390/ma16093365

Cited by 3 publications

(2 citation statements)

References 83 publications

(139 reference statements)

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“…Fibers can present a tendency of orientation. 30 In beams, most of the fibers are oriented in the longitudinal direction, justifying a value of 0.6 based on Amin et al 25 between 0.5 (random orientation) and 1 (all fibers are in the longitudinal direction). The variation in fiber volume was set to the same level as used in Lima et al 18 No variation was assumed for the properties of the reinforcing steel.…”

Section: Fem Modelmentioning

confidence: 98%

A modeling strategy for the shear and flexural performance prediction of SFRC beams without stirrups accounting for the variability of properties

Benedito,

Vanalli,

Krahl

et al. 2024

Structural Concrete

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The behavior of steel fiber reinforced concrete (SFRC) is highly dependent on mix design, where the properties of its components, such as cementitious matrix and fibers, impact the physical and mechanical properties of the composite. Incorporating steel fibers into concrete modifies its physical properties, potentially leading to fiber segregation and resulting in a nonuniform distribution of the fibers within the material. In experimental studies, an increase in fiber volume has been found to change the failure mode of SFRC beams from shear to flexure, and numerical investigations have shown that randomness in fiber distribution can significantly influence the behavior of the composite. Therefore, this study aims to develop a numerical model that considers variations in material properties to simulate the change in the failure mode of SFRC beams due to variations in fiber volume. The failure and yielding parameters were initially established and integrated into the concrete damaged plasticity (CDP). Subsequently, the response of both steel and concrete to tension or compression stresses was ascertained. Finally, the appropriate meshes and finite elements were chosen for the simulation. In the final approach, two methods were employed to introduce randomness into the beam. One divided the beam into different vertical segments: 30, 45, and 90, and the other combined vertical and horizontal segments: 30 vertical with 4 horizontal, 45 vertical with 5 horizontal, and 90 vertical with 10 horizontal. A script was developed in Python to automatically insert the properties. The numerical model successfully captured the change in failure mode from shear to flexure resulting from fiber volume increase. Vertical and horizontal segments increased toughness due to crack deviation, better predicting cracking pattern and loading capacity for the highest fiber contents.

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Section: Fem Modelmentioning

confidence: 98%

A modeling strategy for the shear and flexural performance prediction of SFRC beams without stirrups accounting for the variability of properties

Benedito,

Vanalli,

Krahl

et al. 2024

Structural Concrete

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“…These concretes are required for 3D printing concrete structures, as conventional reinforcement is difficult to install during digital fabrication. Ribeiro et al (2023) manufactured an FRC that exhibited as high as 11% tensile strain capacity in one similar effort, as demonstrated in Figure 10. Pseudo strain-hardening behavior was observed in all specimens.…”

Section: Figurementioning

confidence: 99%

An overview of recent advancements in fibre-reinforced 3D printing concrete

Zhou,

Althoey,

Alotaibi

et al. 2023

Front. Mater.

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3D printing, also known as additive manufacturing, has recently gained significant attention and popularity as a transformative technology across various industries. One area where 3D printing is making remarkable strides is in the construction field, particularly with the emergence of 3D printing concrete (3DPC). While 3DPC holds immense promise, there are still challenges to overcome, such as incorporating reinforcement. This study reviews the potential of using fibre reinforcement to overcome the challenge of making ductile concrete for 3D printing that can withstand substantial tensile stresses. Effects of various types of fibre addition on widespread aspects of 3DPC are systematically reviewed. This review study considers various aspects of 3DPC: rheological characteristics, buildability, anisotropic mechanical behavior, and ductility. These characteristics of fibre-reinforced 3DPC are discussed in light of the published literature. This research’s graphical and statistical visualizations offer valuable insights for academic scholars. This review summarizes recent advancements in fibre-reinforced 3DPC while highlighting the persisting challenges in developing fibre-reinforced 3DPC with desired properties for real-world applications.

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Analyzing the Evolution of Highly Cited Research in Machining of Reinforced Plastics

Mata Cabrera,

Hanafi,

Leite

et al. 2024

Machining Polymer Matrix Composites

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This study employs a bibliometric approach to analyze the evolution of highly cited research in machining of reinforced plastics from 1986 to June 2021. The research examines various document formats, such as journal articles, reviews, chapters, and books. Focusing on reinforced plastics and composites, the study evaluates prolific contributors, temporal trends, and citation metrics to assess scholarly prominence. The research uses a curated dataset of 161 sources from the Web of Science Core Collection database, aiming to identify emerging research directions and gaps in the field. The study uncovers quantitative dimensions and interrelationships among research domains, providing insights into scholarly development. The data categorizes document types, indicating that articles form the majority (85.005%) of the dataset, followed by proceeding papers (16.387%) and review articles (2.536%). The dataset comprises various other types, with each representing a smaller portion. The study's empirical foundation is drawn from the Web of Science Core Collection database.

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Modeling the Tensile Behavior of Fiber-Reinforced Strain-Hardening Cement-Based Composites: A Review

Cited by 3 publications

References 83 publications

A modeling strategy for the shear and flexural performance prediction of SFRC beams without stirrups accounting for the variability of properties

A modeling strategy for the shear and flexural performance prediction of SFRC beams without stirrups accounting for the variability of properties

An overview of recent advancements in fibre-reinforced 3D printing concrete

Analyzing the Evolution of Highly Cited Research in Machining of Reinforced Plastics

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