In this article, the effect of adding micro glass powder into basalt fiber reinforced epoxy composites on the Charpy impact behavior is investigated by both flatwise and edgewise specimens. Also, the effect of adding micro glass powder at two temperatures is examined on the Charpy impact behavior in order to obtain a more detailed knowledge of the role of micro glass powder in polymer composites. Moreover, the effect of adding metal layers to basalt fiber reinforced epoxy composites with various combinations of metals to make basalt fiber metal laminates in Charpy impact test is studied. Finally, it was found that adding micro glass powder increased energy absorption and this effect improved by increasing temperature. Moreover, the superiority of basalt fiber metal laminates in energy absorption as compared to basalt fiber reinforced epoxy is observed. Scanning electron microscopy is used for selective specimens to analyze the nature of fracture surfaces.
This article examines the mechanical behavior of Basalt fiber-reinforced epoxy (BFRE) and a new type of fiber metal laminates (FMLs) composed of steel, aluminum, and BFRE named as Basalt fiber metal laminate (BFML) under tensile and bending loads. To study the effect of fillers in epoxy, the micro glass powder (MGP) was only added into the epoxy resin in BFRE composites at various volume fractions. It was found that the MGP had no significant effect on tensile strength, but it raised the stiffness and decreased the failure strain of BFRE. On the other hand, bending strength increased by adding MGP. BFML showed superiority in energy absorption via tensile strength. This FML had flexibility much higher than that of BFRE. Adding MGP or metal layer to basalt-reinforced composites improved the mechanical properties in tensile and bending loads. Selective bending specimens of BFRE are studied by SEM to show the positive role of MGP in raising the bending strength and further analysis of the nature of fracture surfaces. High fragmentation of matrix was obvious.
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