An experimental study of fatigue resistance in epoxy injection for cracked mortar and concrete considering the temperature effect

Shin, Hong-Chol; Miyauchi, Hiroyuki; Tanaka, Kyoji

doi:10.1016/j.conbuildmat.2010.09.013

Cited by 21 publications

(9 citation statements)

References 7 publications

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“…Figure 5 shows the effects of temperature on the crack growth. In the simulations, it is assumed that there exists no creep damage under RT, q 0 in equation (7) was determined for optimizing the computational predictions. As shown in the figure, the crack growth rate exhibits the obvious different speeds under different temperatures, especially at low stress intensity factor range, because of creep damage dominance.…”

Section: Resultsmentioning

confidence: 99%

“…Experimental observations provide sufficient evidence for considering temperature and time effects in modeling of material failure. 7,8 The life of mechanical parts depends on both loading amplitude and loading time. Experimental data did not provide sufficient knowledge about the total life of the mechanical parts, as analyzed in Zhang et al 9 To give a more accurate prediction, especially for complex geometry parts, a constitutive description of the creepfatigue crack is of importance.…”

Section: Introductionmentioning

confidence: 99%

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Cohesive zone modeling of creep–fatigue crack propagation with dwell time

Yang

Zhang

et al. 2017

Advances in Mechanical Engineering

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In engineering application, a quantitative description of both fatigue and creep damage mechanisms is demanded for high-temperature alloy. This work employs the cohesive zone model to numerically simulate the crack propagation in a nickel-based super-alloy. Two separate damage evolution equations are introduced into the cohesive zone model to describe the fatigue and creep damage, respectively. Effects of temperature and loading hold period are discussed. The comparison shows a reasonable agreement between numerical results and experimental observations and confirms the potential of cohesive zone model for more complex loading conditions in engineering.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Cohesive zone modeling of creep–fatigue crack propagation with dwell time

Yang

Zhang

et al. 2017

Advances in Mechanical Engineering

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“…51,52 Heat resistance depends on the coated resin applied. Concrete coated with an epoxy and polyester coating may resist temperature up to 150 C. [53][54][55] However, prolonged heat exposure may degrade the polymer coatings. In this regard, various fillers have been added in polymers to enhance their heat resistance, non-flammability, modulus of elasticity, and strength.…”

Section: Civil Engineeringmentioning

confidence: 99%

High performance epoxy/polyester-based nanocomposite coatings for multipurpose applications: A review

Kausar

2020

Journal of Plastic Film & Sheeting

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Epoxies are important thermosetting polymers with exceptional features, which have been successfully employed for coatings. Polyester blends with epoxy enhances their chemical inertness, anti-rusting, toughness, strength, glass transition temperature, and heat stability, Epoxy/polyester blends have been further reinforced with nanocarbon, nanoclay, and inorganic nanoparticles to form nanocomposite coatings. Incorporating nanoparticles in epoxy/polyester has further improved their engineering properties. This review article principally offers state-of-the-art review of epoxy/polyester blends and epoxy-/polyester-based nanocomposite coatings. The epoxy/polyester and epoxy/polyester-based nanocomposites have been employed in non-flammable, anti-corrosion, anti-microbial, and anti-wear coatings in automotive, aerospace, energy, electronics, biomedical, and civil engineering applications. In order to fully utilize their potential, rigorous future attempts are needed for progress in the related technical fields.

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“…Epoxy resins are widely used in the industry field as coatings, adhesives, insulating and substrate materials due to their superior electrical and mechanical properties, excellent chemical resistance, low shrinkage and good cohesiveness [19][20][21][22]. With the development of advanced technology, many attempts have been made to prepare for high-performance epoxy resins, especially to improve their thermal properties [23][24][25].…”

Section: Introductionmentioning

confidence: 99%

Study on preparation and properties of novel reactive phenolic hydroxyl-containing polyimides

et al. 2012

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Novel reactive polyimides (PIs) containing phenolic hydroxyl functionalities were prepared from 4-(4-hydroxyphenyl)-2,6-bis[3-(4-aminophenoxy)phenyl]pyridine (m,p-HAPP) with various aromatic dianhydrides via one-step polycondensation procedure. The inherent viscosities of the PIs were 0.54-0.63 dL/g in DMF solution and most of them were readily soluble in common organic solvents such as DMF, DMAc, NMP, and m-Cresol, etc. Meanwhile, the PIs also had good thermal stability, with the glass transition temperature (T g ) of 221.7-310.5°C, the temperature at 10 % weight loss of 524.1-579.3°C in nitrogen atmosphere. Then commercial epoxy resin was cured in the presence of different ratios of the reactive polyimide, giving a series of polyimide modified epoxy films. Thermogravimetric analysis showed the increase of the temperature at 5 % weight loss of the films with the increase of the polyimide content; 296°C for 0 %, 309°C for 1.95 %, 337°C for 3.85 % and 350°C for 5.63 %.

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An experimental study of fatigue resistance in epoxy injection for cracked mortar and concrete considering the temperature effect

Cited by 21 publications

References 7 publications

Cohesive zone modeling of creep–fatigue crack propagation with dwell time

Cohesive zone modeling of creep–fatigue crack propagation with dwell time

High performance epoxy/polyester-based nanocomposite coatings for multipurpose applications: A review

Study on preparation and properties of novel reactive phenolic hydroxyl-containing polyimides

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