Evaluation of mechanical properties of novel GLARE laminates filled with nanoclay

Abstract

In this research work, we have investigated the effect of nanoclay fillers in the epoxy adhesive on improving the interfacial adhesion and the mechanical properties of glass-reinforced aluminum laminates. The laminates were prepared with a varying weight percentage of nanoclay fillers (i.e., 3, 4, and 5 wt%) in the epoxy resin using the hand lay-up method. During the tensile test, the laminate's anisotropic nature was investigated using the samples cut in different orientations to the rolling direction (i.e., 0, 45, and 90 ). The flexural, lap shear, and impact tests were conducted as per ASTM standards. After each test, the failure mechanisms of laminates were studied using the scanning electron microscope. The results showed that 3 wt% of nanoclay added in the epoxy enhanced the laminates' overall mechanical properties than other composites. The fiber metal laminates (FML) containing the nano clay more than 3 wt% showed deterioration in the mechanical property due to the improper distribution of nanoclay in the epoxy matrix. The FML's mechanical properties with nano clay filler were compared with other fillers' performance in the previous studies. It was found that the mechanical properties of FML with nano clay filler were more significant than others.

Comprehensive characterization of AA 2024T3 fiber metal laminate with nanosilica‐reinforced epoxy based polymeric composite panel for lightweight applications

“…Furthermore, increasing the weight percentage of nanosilica by more than 3 wt% NS the tensile strength at 5 wt% decreased at 170 ± 11 MPa. The high‐filler content in the matrix leads to agglomeration [ 15 ] ;and this affects the bonding properties of the matrix in glass fiber layers and sandwiched aluminum and glass fiber layers. The tensile modulus has shown the same tendency as tensile strength for FMLs.…”

“…The failed specimen showed the delamination between metal and fiber‐reinforced composite layers. [ 15 ] Matrix debonding could be observed in the high‐stress value, followed by a significant failure to breakage fiber and pullout failure in the fiber‐reinforced composite layer. The failure like fiber breakage and separation of the matrix is observed in the fracture area.…”

“…Most of the research has been carried out by adding up to 1 wt% nanofillers to study the enhancement of mechanical characterization of the FML and some authors study the effect of filler percentage more than 1 wt%. [15,30] Enhancing the characteristics of epoxy matrix by adding nanofillers has sparked a lot of interest in nanofillerdispersed FML fabrication. In this study, FML was investigated experimentally for determining an optimized nanofiller weight percentage in epoxy resin to FML without nanofiller.…”

Temperature analysis in fiber metal laminates drilling: Experimental and numerical results

“…Commercially available FMLs are, for example, GLARE © , CARALL © , and ARALL © where those composite laminates are combined with aluminum alloys sheets. [1,2] As for the most novel hybrid materials developed in the last decades, FMLs are designed to achieve properties superior to those of the constituents. Enhanced fatigue, traction, and compression resistance as well as crack propagation inhibition and outstanding damage tolerance are the desiderata of the aeronautical and the space sectors.…”

Mechanical performance of a novel glass fiber reinforced maleic anhydride grafted polypropylene composite and its thermoplastic‐based fiber metal laminates

“…[ 1 ] Continuous carbon or glass fiber reinforced plastic (CFRP, GFRP) and aluminum (Al) are known possess high strength and stiffness and excellent lightweight effect, which are especially favorable toward lightweight design of structural parts. [ 2 ] However, the mechanical brittleness and the cost affordability of CFRP or GFRP restrict the application into automobile manufacturers. [ 3 ] In recent years, fiber metal laminates (FMLs) has been developed and used in the aerospace industry, such as GLARE®, ARALL®, and CARALL® which consist of Al sheets interspersed with aramid, glass or carbon fiber reinforced composite layers.…”