Estimation of the fracture parameters of macro fiber-reinforced concrete based on nonlinear elastic fracture mechanics simulations

Alhassan, Mohammad A.; Betoush, Nour; Al-Huthaifi, Nasser; Dalou, Abeer Al

doi:10.1016/j.rineng.2022.100539

Cited by 9 publications

(3 citation statements)

References 30 publications

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“…The specimens are cast and tested in a laboratory concerning mixing proportions and Indian Standards. We identified maximum in T4 and minimum in T12 with varying W/B ratios [30].…”

Section: Design Of Experiments and MIX Proportionsmentioning

confidence: 79%

Experimental investigation on utilization of substitute building materials in concrete using neural networks

Kumar V,

Indu

et al. 2024

E3S Web of Conf.

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The replacement of cement with sugarcane bagasse ash in concrete is considered due to its rich properties of projecting pozzolanic activity. The availability of aggregates is becoming scarce as a result of the non-renewable characteristic of fine and coarse aggregates. The construction waste end products like demolishing waste also cause the problem of improper disposal. Hence a majority of the construction industries have preferred the usage of construction and demolition (C&D) waste as a replacement for coarse aggregate. Substitution of coarse aggregates by construction and demolition waste and fine aggregates by iron slag ash is considered. The Taguchi method is adopted for the determination of mix combinations. This paper focuses on determining the properties of concrete having pozzolanic properties by replacing the cement with sugarcane bagasse ash (SBA), coarse aggregate with demolished building waste (DBW), and Fine aggregate with iron slag ash (ISA). The experimental investigation proved that SBA, DBW and ISA have a potential sign to be used as an alternative sustainable building material. From the comparative analysis of experimental results with ANN, it is revealed that the concrete show an acceptable prediction of physical and strength properties.

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“…The specimens are cast and tested in a laboratory concerning mixing proportions and Indian Standards. We identified maximum in T4 and minimum in T12 with varying W/B ratios [30].…”

Section: Design Of Experiments and MIX Proportionsmentioning

confidence: 79%

Experimental investigation on utilization of substitute building materials in concrete using neural networks

Kumar V,

Indu

et al. 2024

E3S Web of Conf.

View full text Add to dashboard Cite

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“…• Increased defect density directly reduced the material's fracture toughness, making it more susceptible to crack initiation and rapid propagation. By tailoring these characteristics, it's possible to engineer materials with desired mechanical properties, ensuring longevity and reliability in service [32][33][34]. The developed FEA model, validated against experimental data, offers a powerful tool for predicting the influence of microstructure on fracture behavior, paving the way for more informed material selection and design in various engineering applications.…”

Section: Fea Simulations and Microstructural Influencementioning

confidence: 99%

Modelling and Simulation of Fracture Mechanics and Failure Analysis of Materials using FEA

Singhal,

Srividhya,

Kumar

et al. 2023

E3S Web Conf.

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This paper presents a comprehensive study on the modelling and simulation of fracture mechanics and failure analysis of materials using Finite Element Analysis (FEA). The research introduces a novel approach to predict and analyze the fracture behavior and failure mechanisms of various engineering materials under different loading conditions. The developed model incorporates advanced material constitutive relations and fracture criteria, providing a more accurate representation of the complex physical phenomena involved in material failure. The simulation results are validated against experimental data, demonstrating high accuracy and reliability of the proposed model. The study also explores the influence of microstructural characteristics on the fracture behavior, thereby bridging the gap between microscale and macroscale fracture mechanics. The findings of this research not only enhance our understanding of fracture mechanics but also provide a powerful tool for engineers to design more durable and reliable materials and structures. This work has significant implications for industries where material failure can lead to catastrophic consequences, such as aerospace, automotive, and civil engineering.

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“…From the theoretical derivation of eq 8 of the elastic mechanics, 25 , 26 the concrete cracking equation is where B represents the cracking coefficient of the material being broken, R t represents the tensile strength of the material being broken, v represents Poisson’s ratio of the ruptured material, and p r represents the expansion pressure in the borehole, MPa.…”

Section: Rock-breaking Efficiency Testsmentioning

confidence: 99%

Mechanistic Study of a Microwave Field-Controlled Static Crushing Agent for Efficient Rock Breaking

Liu

Guan

et al. 2022

ACS Omega

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The long reaction time and uncontrollable reaction process of the swelling agent in the process of rock breaking by static crushing agent lead to unsatisfactory efficiency and effect of rock breaking. This paper uses physical experiments to compare and analyze the changes in temperature and pressure of the hydration reaction under different microwave conditions; utilizes microscopic analysis of the hydration reaction products under each condition, combined with numerical calculations to elucidate the mechanism of the effect of microwave field on the hydration reaction of the expansion agent; and proposes a microwave field-controlled static crushing agent rock-breaking method. The study reached the following main conclusions: (1) microwave heating is better than conventional heating in terms of heating rate, peak temperature, and peak pressure; (2) using static crushing agent rock breaking is preferable to use a low-power microwave field to control the reaction process, and to ensure that the initial temperature is not higher than the local water boiling point; (3) microwave heating to promote the reaction mechanism lies in its deep heating of the system, faster heating rate, and higher energy utilization, and is more conducive to hydration expansion reaction; (4) selective heating of microwaves can enhance the hydration reaction of calcium oxide and inhibit the production of hydrated tricalcium silicate, making the reaction more complete, while microwave heating will also improve the microstructure of hydration products.

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Estimation of the fracture parameters of macro fiber-reinforced concrete based on nonlinear elastic fracture mechanics simulations

Cited by 9 publications

References 30 publications

Experimental investigation on utilization of substitute building materials in concrete using neural networks

Experimental investigation on utilization of substitute building materials in concrete using neural networks

Modelling and Simulation of Fracture Mechanics and Failure Analysis of Materials using FEA

Mechanistic Study of a Microwave Field-Controlled Static Crushing Agent for Efficient Rock Breaking

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