Static and Dynamic Behavior of Fibrous Polymeric Composite Materials at Different Environmental Conditions

Mahato, Kishore Kumar; Dutta, Krishna; Ray, Bankim Chandra

doi:10.1007/s10924-017-1001-x

Cited by 42 publications

(20 citation statements)

References 90 publications

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“…Besides improved mechanical, thermal, and electrical properties, changes in resistance to the damage [ 53 ] and lesser sensitivity to the environmental agents [ 79 , 80 ] have been found for the nanocomposites. However, the type, amount, and distribution of nanoparticles determine whether the matrix/composite properties improve or deteriorate [ 70 , 73 ].…”

Section: Development Of Improved Materialsmentioning

confidence: 99%

“…Interactions between matrix and nanoparticles or agglomeration may reduce the T g [ 58 , 59 ]. High addition of nanoparticles (as a filler) in the composite can lead to crack formation, voids, and other defects, leading to degradable mechanical properties [ 79 ] ( Figure 6 ). Poorly dispersed nanocomposites may also have degraded mechanical properties [ 56 ].…”

Section: Development Of Improved Materialsmentioning

confidence: 99%

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Durability Issues and Challenges for Material Advancements in FRP Employed in the Construction Industry

Frigione

Lettieri

2018

Polymers

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The use of fiber reinforced polymer (FRP) composites for the rehabilitation of buildings or other infrastructure is increasingly becoming an effective and popular solution, being able to overcome some of the drawbacks experienced with traditional interventions and/or traditional materials. The knowledge of long-term performance and of durability behavior of FRP, in terms of their degradation/aging causes and mechanisms taking place in common as well as in harsh environmental conditions, still represents a critical issue for a safe and advantageous implementation of such advanced materials. The research of new and better performing materials in such fields is somewhat limited by practical and economical constrains and, as a matter of fact, is confined to an academic argument.

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Section: Development Of Improved Materialsmentioning

confidence: 99%

Section: Development Of Improved Materialsmentioning

confidence: 99%

Durability Issues and Challenges for Material Advancements in FRP Employed in the Construction Industry

Frigione

Lettieri

2018

Polymers

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“…As a result, even a slight change in the volume fraction of the reinforcement may lead to significant changes in the properties of the final polymer composite [ 9 , 10 , 11 , 12 ]. The interphases in fiber-reinforced polymers need to be widely investigated since it is acknowledged that these areas have a pronounced effect on the bulk properties of composite materials [ 13 ], especially under extreme loadings and harsh environmental conditions [ 14 , 15 , 16 , 17 ]. Two important parameters that shall be considered and intercorrelated for a deeper understanding of fiber-reinforced composites’ mechanical response to different loading modes are the reinforcing volume fraction and the quality of adhesion between the fiber and matrix.…”

Section: Introductionmentioning

confidence: 99%

Interrelation between Fiber–Matrix Interphasial Phenomena and Flexural Stress Relaxation Behavior of a Glass Fiber–Polymer Composite

2021

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The response of fiber-reinforced polymer composites to an externally applied mechanical excitation is closely related to the microscopic stress transfer mechanisms taking place in the fiber–matrix interphasial region. In particular, in the case of viscoelastic responses, these mechanisms are time dependent. Defining the interphase thickness as the maximum radial distance from the fiber surface where a specific matrix property is affected by the fiber presence, it is important to study its variation with time. In the present investigation, the stress relaxation behavior of a glass fiber-reinforced polymer (GFRP) under flexural conditions was studied. Next, applying the hybrid viscoelastic interphase model (HVIM), developed by the first author, the interphase modulus and interphase thickness were both evaluated, and their variation with time during the stress relaxation test was plotted. It was found that the interphase modulus decreases with the radial distance, being always higher than the bulk matrix modulus. In addition, the interphase thickness increases with time, showing that during stress relaxation, fiber–matrix debonding takes place. Finally, the effect of fiber interaction on the interphase modulus was found. It is observed that fiber interaction depends on both the fiber–matrix degree of adhesion as well as the fiber volume fraction and the time-dependent interphase modulus.

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“…In order to study the effects of hygrothermal aging on the thermomechanical performance of PCMs, Kablov et al 5 exposed PCMs to climatic exposure over years with the aim of analyzing the generated effects on their tensile, bending and viscoelastic properties, among others. Mahato et al 6 also appointed to an overall decrease of properties of PCMs after exposure to marine environmental conditions. And, Li et al, 7 after performing an accelerated conditioning under seawater to carbon fiber reinforced composites, determined the ongoing water absorption and diffusion processes and also analyzed the decrease on their tensile properties as well as on the glass transition temperature.…”

Section: Introductionmentioning

confidence: 99%

Effects of hygrothermal aging on the thermomechanical properties of a carbon fiber reinforced epoxy sheet molding compound: An experimental research

Zulueta

Burgoa

Martinez³

2020

J of Applied Polymer Sci

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Carbon fiber sheet molding compounds (C-SMCs) are discontinuous fiber reinforced composite materials. Among them, epoxy-based C-SMCs are becoming relevant materials due to their high thermomechanical performance and better formability than continuous fiber reinforced composites. The thermomechanical performance of epoxy resins and epoxy based continuous carbon fiber composites have shown to be influenced by hygrothermal aging. In this work, this influence is studied for an epoxy-based C-SMC. Epoxy-based C-SMC samples were hygrothermally aged by means of accelerated conditioning, exposing them to 65% relative humidity, and 80 C in a climatic chamber. The equilibrium moisture content, as well as the moisture diffusion coefficient has been determined. The thermomechanical properties of epoxy C-SMC have been analyzed by dynamic mechanical analysis, tensile, 3-point bending, and short beam tests in dry and aged samples. The results showed that epoxy C-SMC is affected by hygrothermal aging in the cases of moisture intake and its effects on T g value, but interestingly, the hygrothermal aging did not generate any degradation effects in the mechanical response of epoxy C-SMC.

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Static and Dynamic Behavior of Fibrous Polymeric Composite Materials at Different Environmental Conditions

Cited by 42 publications

References 90 publications

Durability Issues and Challenges for Material Advancements in FRP Employed in the Construction Industry

Durability Issues and Challenges for Material Advancements in FRP Employed in the Construction Industry

Interrelation between Fiber–Matrix Interphasial Phenomena and Flexural Stress Relaxation Behavior of a Glass Fiber–Polymer Composite

Effects of hygrothermal aging on the thermomechanical properties of a carbon fiber reinforced epoxy sheet molding compound: An experimental research

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