Abstract
As a high-demand material, polymer matrix composites are being used in many advanced industrial applications. Due to ecological issues in the past decade, some attention has been paid to the use of natural fibers. However, using only natural fibers is not desirable for advanced applications. Therefore, hybridization of natural and synthetic fibers appears to be a good solution for the next generation of polymeric composite structures. Composite structures are normally made for various harsh operational conditions, and studies on loading rate and strain-dependency are essential in the design stage of the structures. This review aimed to highlight the different materials’ content of hybrid composites in the literature, while addressing the different methods of material characterization for various ranges of strain rates. In addition, this work covers the testing methods, possible failure, and damage mechanisms of hybrid and synthetic FRP composites. Some studies about different numerical models and analytical methods that are applicable for composite structures under different strain rates are described.
Highlights
Several kinds of fibers are available in the market for producing fiber-reinforced polymer (FRP) composite structures
Thermoplastic resin can be used for different fabrication methods, such as resin transfer molding (RTM), sheet molding compound (SMC), pultrusion, vacuum-assisted resin transfer molding (VARTM), and hand layup, which requires less pressure [49]
This study reviewed several studies of polymeric fiber-reinforced composites under different loading strain rates
Summary
Publisher’s Note: MDPI stays neutral with regard to jurisdictional claims in published maps and institutional affiliations. Using natural fibers as sustainable and recyclable materials has gained attention for producing natural composite structures Some limitations such as low strength cause them to be less applicable than synthetic fibers. The hybrid composite structures were made by a combination of natural fibers, and their final strength is a challenge compared to synthetic fibers. The other interesting ongoing topic is the application of bio-based polymer matrix composites with natural fibers. These matrices are made of oil-independent and recyclable materials. Reducing the cost and increasing the mechanical properties of bio-based polymers can be taken into consideration in future studies. A review of studies on different numerical models and analytical methods that are applicable for such composite structures under different strain rates is presented
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