Evaluation and methods of interfacial properties in fiber-reinforced composites

Padmanabhan, K. A.

doi:10.1016/b978-0-08-102292-4.00018-7

Cited by 12 publications

(4 citation statements)

References 57 publications

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“…The composite material under study is considered in terms of hierarchically organized systems, 4,[38][39][40] which are characterized by an interconnected reaction of adjacent scale levels as a result of external thermal deformation effects. Within the framework of this approach, the polymer composite material is presented in the form of two finite element models at the micro-and macroscale levels.…”

Section: A Technique For Constructing a Multilevel Fiberglass Modelmentioning

confidence: 99%

Constructing a two-level computational model of cross-ply fiberglass-reinforced plastic from micromechanical testing

Смирнов

Smirnova

Khudorozhkova

2022

Polymers and Polymer Composites

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This paper deals with solving the problem of constructing two-level computational models relating the stress-strain state at the microscale to the stress-strain state of the structural component at the macroscale for layered polymer composite materials with unidirectional fiber stacking in a monolayer. The paper presents a two-level computational mechanical model of a ten-layer cross-ply fiberglass-reinforced polymer composite with (0/90) laying patterns. The model is based on microindentation data. The model is constructed using the finite element method. The constructed model has allowed us to predict the elastic properties of the composite and to calculate stresses at the microscale and macroscale levels of a specimen prior to fracture under tensile conditions. The elastic properties of the polymer composite material predicted by the computational model are compared with the properties obtained from real experiments. Calculated for fiberglass, the elasticity modulus and Poisson’s ratio are 31 GPa and 0.11, respectively. Similar elastic properties obtained from real experiments are 28 GPa and 0.10. The technique used in the paper can be applied to computational experiments with an actual structural component made of a multilayer polymer composite in order to determine the stress-strain state at the micro- and macroscale under external mechanical impact on the structure.

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Section: A Technique For Constructing a Multilevel Fiberglass Modelmentioning

confidence: 99%

Constructing a two-level computational model of cross-ply fiberglass-reinforced plastic from micromechanical testing

Смирнов

Smirnova

Khudorozhkova

2022

Polymers and Polymer Composites

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“…The bonding mode of the interface can be divided into mechanical bonding (matrix bonding with reinforcement through the micro pores on the fibre), low energy physical coupling (matrix bonding with reinforcement through Van der Waals force), high energy chemical reaction coupling (matrix bonding with reinforcement through chemical bond), and diffusion bonding (particles from fibre dissolved in matrix) [201][202][203]. It should be noted that the structure and property of the interface plays a critical role in determining the properties of the composite.…”

Section: J O U R N a L P R E -P R O O Fmentioning

confidence: 99%

The processing and analysis of graphene and the strength enhancement effect of graphene-based filler materials: A review

Shen

Oyadiji

2020

Materials Today Physics

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This is a PDF file of an article that has undergone enhancements after acceptance, such as the addition of a cover page and metadata, and formatting for readability, but it is not yet the definitive version of record. This version will undergo additional copyediting, typesetting and review before it is published in its final form, but we are providing this version to give early visibility of the article. Please note that, during the production process, errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain.

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“…Several strategies have been developed to improve the interfacial adhesion between polymers and GF. The first one is to treat the surface of GF using coupling, nucleating or coupling agents, and the second one consists of the introduction of an interfacial compatibilizer into the matrix; additionally, matrix treatment with oxygen plasma can be used [ 12 ]. The use of coupling agents that chemically react with both the matrix and the reinforcement elements is the most effective method for chemically bonding the matrix to the encapsulated reinforcement elements.…”

Section: Introductionmentioning

confidence: 99%

Surface Treatment Effect on the Mechanical and Thermal Behavior of the Glass Fabric Reinforced Polysulfone

Sherif,

Chukov,

Tcherdyntsev

et al. 2024

Polymers

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The chemical structure of the surface of glass fibers, including silanized fibers, was studied. Highly efficient heat-resistant composites were obtained by impregnating silanized glass fiber with a polysulfone solution, and the effect of modification of the surface of glass fibers on the physical, mechanical and thermophysical properties of the composite materials was studied. As a result of the study, it was found that the fiber-to-polymer ratio of 70/30 wt.% showed the best mechanical properties for composites reinforced with pre-heat-treated and silanized glass fibers. It has been established that the chemical treatment of the glass fibers with silanes makes it possible to increase the mechanical properties by 1.5 times compared to composites reinforced with initial fibers. It was found that the use of silane coupling agents made it possible to increase the thermal stability of the composites. Mechanisms that improve the interfacial interaction between the glass fibers and the polymer matrix have been identified. It has been shown that an increase in adhesion occurs both due to the uniform distribution of the polymer on the surface of the glass fibers and due to the improved wettability of the fibers by the polymer. An interpenetrating network was formed in the interfacial region, providing a chemical bond between the functional groups on the surface of the glass fiber and the polymer matrix, which was formed as a result of treating the glass fiber surface with silanes, It has been shown that when treated with aminopropyltriethoxysilane, significant functional unprotonated amino groups NH+/NH2+ are formed on the surface of the fibers; such free amino groups, oriented in the direction from the fiber surface, form strong bonds with the matrix polymer. Based on experimental data, the chemical structure of the polymer/glass fiber interface was identified.

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Evaluation and methods of interfacial properties in fiber-reinforced composites

Cited by 12 publications

References 57 publications

Constructing a two-level computational model of cross-ply fiberglass-reinforced plastic from micromechanical testing

Constructing a two-level computational model of cross-ply fiberglass-reinforced plastic from micromechanical testing

The processing and analysis of graphene and the strength enhancement effect of graphene-based filler materials: A review

Surface Treatment Effect on the Mechanical and Thermal Behavior of the Glass Fabric Reinforced Polysulfone

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