Quasi-static indentation response of aramid fiber/epoxy composites containing nylon 66 electrospun nano-interlayers

Abstract

In the last decade, polymer nanofibers have found promising application for improving through-thickness properties of structural composite laminates through interleaving. The main advantage of inserting nanofibers in conventional composites is making the matrix between the layers tougher. In this article, the benefits of using electrospun fibrous nano-interleaves in enhancing the quasi-static indentation response of aramid/epoxy laminated composites was investigated and the effect of variables of produced nano-interleaves including interleaf thickness (17.5, 35, and 70 µm) and stacking configuration (one-side, central, and two-side interleaving) on behavior of the nano-modified composites was investigated. The results indicate that force, displacement, absorbed energy, and stiffness of these composites are significantly affected by the presence of nano-interleaves. The optimum values were observed in the composites with 35 µm thickness of nano-interleave where three first parameters were higher than their reference values, but the stiffness value had opposite trend of other parameters. On the other hand, it can be seen that only asymmetrical (back-side indentation) stacking configuration lead to improving the composite properties. The visual inspection of the indentation damaged specimens reveals that thickness and stacking configuration of interleaves controls the size of damage.

Fabrication of fibrous poly (ɛ‐caprolactone) nano‐fibers containing cerium doped‐bioglasses nanoparticles encapsulated collagen

“…In this study, the author loaded collagen microsphere containing BG nanopowder with different content of doped Ce into PCL fibrous scaffolds and their bioactivity and biocompatibility were evaluated in detail. The results confirmed the positive effect of the combination of Ce doped BG nanoparticles encapsulated collagen microspheres on the bioactivity and cell performance of PCL fibers for bone tissue engineering applications 41–62 …”

The influence of incorporation of silica and carbon nanoparticles on the mechanical properties of hybrid glass fiber reinforced epoxy

“…The NWT is composed of fine short fibers randomly distributed [7]. Fiber-reinforced polymer composites are increasingly used in different structural applications such as in the aerospace, marine, automotive, and construction industries [9]. Woven fabric, unlike chopped strand mat, gives good dimensional stability and higher impact resistance and toughness [10].…”

A review on the damping properties of fiber reinforced polymer composites

“…At present, different kinds of fibers are used for engineering applications, such as carbon fiber is dominant for lightweight structural composites due to its high modulus and low density. In addition, several high performance synthetic fibers are more ductile than carbon fiber, and they can be used to enhance the damping behavior [58]. For instance, the difference between E-glass and N-glass was investigated [59].…”