knitted fabric reinforced epoxy related papers

Introduction

Knitted fabric reinforced epoxy composites have garnered significant interest due to their unique mechanical properties and potential applications in various industries. This synthesis aims to consolidate the key findings from multiple research papers on the tensile, flexural, impact, and energy absorption properties of these composites.

Key Insights

Tensile Properties:
- Knitted fabric reinforced epoxy composites exhibit distinct tensile properties depending on the fabric orientation and structure. The elastic modulus and tensile strength can be predicted using modified rule-of-mixtures laws and finite element models, showing reasonable agreement with experimental results .
- The failure mechanisms in these composites are influenced by the reinforcement efficiency of curved fiber bundles and the fracture strength of fiber bundles bridging the fracture plane .
Flexural and Impact Properties:
- Woven preform reinforced laminates generally outperform knitted preform laminates in both flexural and impact properties. However, sequentially stacked knitted/woven preform laminates with knitted preform as the skin layers show improved properties compared to other configurations.
- The number of preform layers and lay-up angles significantly affect the flexural and impact properties, with certain configurations showing comparable performance to woven preform laminates at low fiber volume fractions.
Energy Absorption:
- Knitted carbon fiber fabric reinforced epoxy tubes demonstrate notable energy absorption capabilities under axial compressive loads. The specific energy absorption is influenced by the fiber architecture and content, with optimized fiber arrangements enhancing the energy absorption capacity.
Modeling and Prediction:
- The mechanical properties of knitted fabric composites can be effectively modeled by considering the constituent properties, fabric structural parameters, and laminate lay-up information. These models help in predicting the stiffness, strength, and overall mechanical behavior of the composites .

Conclusion

Knitted fabric reinforced epoxy composites exhibit promising mechanical properties, including tensile strength, flexural and impact resistance, and energy absorption capabilities. The performance of these composites is highly dependent on the fabric structure, orientation, and the specific configuration of the reinforcement layers. Advanced modeling techniques provide valuable predictions that align well with experimental results, aiding in the design and optimization of these materials for various applications.

Knitted fabric reinforced epoxy related papers

Summary

Introduction

Key Insights

Conclusion

Sources and full results

Tensile Properties of Plain Weft Knitted Glass Fiber Fabric Reinforced Epoxy Composites

Plain weft knitted glass fiber fabric reinforced epoxy composites show promising tensile properties and failure mechanisms, with potential for use in structural applications.

Flexural and impact properties of flax woven, knitted and sequentially stacked knitted/woven preform reinforced epoxy composites

Woven preform reinforced epoxy composites perform better in flexural and impact properties, while sequentially stacked knitted/woven preform reinforced laminates show better properties at low fiber volume fraction.

Energy absorption capability of epoxy composite tubes with knitted carbon fibre fabric reinforcement

Knitted carbon fiber fabric/epoxy tubes with optimal fiber arrangement can achieve maximum energy-absorption capability under axial compressive loads.

Mechanical Characterization of Untreated Waste Office Paper/Woven Jute Fabric Hybrid Reinforced Epoxy Composites

Untreated waste office paper and jute fabric can be used as reinforcement in epoxy composites, increasing flexural and tensile strength, offering a viable alternative to paper recycling.

Modeling Mechanical Properties of Knitted Fabric Composites-Part II: Theoretical Description

This paper summarizes the development of modeling techniques for understanding the mechanical properties of knitted fabric composites, with applications to various types of thermoset (epoxy) and elastomer matrix composites.

Tensile behaviour of knitted carbon-fibre-fabric/epoxy laminates—part II: Prediction of tensile properties

Knitted fabric reinforced epoxy laminates have higher predicted tensile strengths than experimental values due to bending stresses, which reduce the failure load of bundles.

Tensile properties of multilayered biaxial weft knitted fabric reinforced composite material

Multilayered biaxial weft knitted fabric reinforced composite material shows good agreement with experimental results, providing a reliable method for estimating mechanical behaviors of composite structures.

Energy Absorption Characteristics of Knitted Fabric Reinforced Epoxy Composite Tubes

Knitted fabric reinforced epoxy composite tubes show improved energy absorption capabilities when fiber content, fiber orientation, and testing speed are optimized.

Modelling the elastic properties of knitted-fabric-reinforced composites

Knitted-fabric-reinforced composites show good elastic properties, but in-plane Poisson's ratio cannot be successfully predicted.

Improving the mechanical properties of natural fibre fabric reinforced epoxy composites by alkali treatment

Alkali treatment improves the mechanical properties of natural fiber fabric reinforced epoxy composites, enhancing tensile and flexural strength and improving fiber/epoxy interfacial adhesion.

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